Recipe: (Percent, Batch)
Grog,150 mesh 80.0 80.00 Kaolin 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Add color to taste. I promised a while back to list this when I found it! Kawai used a lot of thick slip trailing in his work and this was given to me by one of his apprentices, Doug Lawrie. submitted by: June M. Perry e-mail: GURUSHAKTI@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 35.0 35.00 Dolomite 15.0 15.00 Whiting 8.0 8.00 Barium carbonate 8.0 8.00 EPK 4.0 4.00 Silica 30.0 30.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.0 3.00
Comments:
submitted by: Kat Neely-Jones source for original recipe: This is a variation on one of Emmanuel Cooper's glazes, #207. e-mail: SolvejgMa@AOL.COM Variations -- Copper carb 3% + Cobalt carb .25% = teal blue with tiny crystals (if soaked ), glossy. Cobalt carb .25% = frosty delft blue, matt surface (why matt??). Copper carb 5% = Forest green, clear and glossy. Manganese 4% + Cobalt .5% = Dark plum,glossy, nearly black where thickest.
Recipe: (Percent, Batch)
Albany slip 63.2 63.16 Cornwall Stone 26.3 26.32 Whiting 10.5 10.53 ----- -------- Totals: 100.0 100.01
Also add:
Red iron oxide 5.3 5.26
Comments:
The Albany glaze it's a near twin of (in my kiln anyway) is glaze #23 in the appendix of Daniel Rhodes _Clay and Glazes for the Potter- (this book is a good potters' bible) Submitted by: Marcia Kindlmann e-mail: marcia@design.eng.yale.edu
Recipe: (Percent, Batch)
Redart 72.0 72.00 Whiting 10.0 10.00 Soda feldspar 8.0 8.00 Talc 5.0 5.00 EPK kaolin 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
I can tell no difference in Rhodes Black made with this substitute and real Albany Slip. David Hendley Maydelle, Texas See David Hendley's Pottery Page at http://ww.sosis.com/hendley/david
Recipe: (Percent, Batch)
Feldspar 62.6 62.50 Whiting 7.7 7.70 EPK 5.1 5.10 Flint 24.6 24.60 ----- -------- Totals: 100.0 99.90
Comments:
From David Green's "A Handbook of Pottery Glazes" Alkaline glazes should be good for yellow iron colors.
Recipe: (Percent, Batch)
Feldspar 20.0 20.00 Cornwall Stone 50.0 50.00 Whiting 15.0 15.00 Flint 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
From David Green's "A Handbook of Pottery Glazes" Alkaline glazes should be good for yellow iron colors.
Recipe: (Percent, Batch)
Feldspar 50.7 51.71 Whiting 16.0 16.27 Dolomite 0.3 0.32 Silica 26.4 26.89 Kaolin - theoretical 6.6 6.72 ----- -------- Totals: 100.0 101.90
Comments:
From David Green's "A Handbook of Pottery Glazes" Alkaline glazes should be good for yellow iron colors.
Recipe: (Percent, Batch)
Barium carbonate 36.6 36.60 Lithium carbonate 1.1 1.10 Nepheline syenite 45.6 45.60 Ball clay 7.2 7.20 Flint 9.5 9.50 ----- -------- Totals: 100.0 100.00
Comments:
From Margaret Bohls: fired cone 9 electric Gorgeous satin, slightly sugary surface. Slightly translucent. I use the Base White as a complementary glaze to a shiny white or clear glaze over porcelain, for a "white on white" effect. The chartreuse, although equally gorgeous, fumes like mad and may affect glazes next to it on the same pot or in the same area in the kiln, either by turning them green or by making them wrinkle or bubble. Some glazes are unaffected. I isolate this glaze in the kiln. Variations -- for chartreuse: 0.5% chrome oxide
Recipe: (Percent, Batch)
Strontium carbonate 30.3 27.50 Lithium carbonate 1.2 1.10 Nepheline syenite 50.2 45.60 Ball clay 7.9 7.20 Flint 10.5 9.50 ----- -------- Totals: 100.0 90.90
Comments:
Gorgeous satin, slightly sugary surface. Slightly translucent. Use the Base White as a complement to a shiny white or clear over porcelain for a "white-on-white" effect. The chartreuse fumes like mad and may affect glazes next to it in the kiln by turning them green or making them wrinkle and bubble. Some glaze unaffected. Isolate this in the kiln. From Margret Bohls Variations -- chartreuse 0.5% chrome oxide
Recipe: (Percent, Batch)
Barnard clay 39.3 33.00 Wollastonite 15.5 13.00 Whiting 17.9 15.00 Custer feldspar 23.8 20.00 Gerstley borate 3.6 3.00 ----- -------- Totals: 100.0 84.00
Comments:
From Matt Long
Recipe: (Percent, Batch)
Albany Slip 36.0 36.00 Custer feldspar 22.0 22.00 Gerstley borate 3.0 3.00 Wollastonite 14.0 14.00 Whiting 8.0 8.00 Flint 14.0 14.00 EPK 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Yellow Ochre 9.0 9.00
Comments:
USE WOLLASTONITE POWDER. Sub. Barnard clay for Albany and its still amber, but darker and less yellowish. Med=dk amber/brown; thick=blue/black. Over white=honey yellowish. Can go dull matt in places. Good functional glaze as liner, etc. Glaze Type: Ca SlipGlaze. Opacity: Varies. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Wood ash 21.8 22.00 Whiting 16.8 17.00 Custer feldspar 40.6 41.00 Ball clay 4.0 4.00 Flint 16.8 17.00 ----- -------- Totals: 100.0 101.00
Also add:
Red iron oxide 7.9 8.00 Bentonite 2.0 2.00
Comments:
Used by Kent McLaughlin. Very shiny. Medium value, good transparency. Golden brown. Runs thick.
Recipe: (Percent, Batch)
Custer feldspar 26.5 26.50 Whiting 22.2 22.20 Flint 25.6 25.60 Ball clay 25.6 25.60 ----- -------- Totals: 100.0 99.90
Also add:
Yellow ochre 8.0 8.00
Comments:
Recipe: (Percent, Batch)
Kaolin - theoretical 15.2 15.00 Custer feldspar 28.3 28.00 Dolomite 4.0 4.00 Whiting 19.2 19.00 Silica 30.3 30.00 Frit 3134 3.0 3.00 ----- -------- Totals: 100.0 99.00
Also add:
Red iron oxide 3.0 3.00
Comments:
USE WOLLASTONITE POWDER. Sub. Barnard clay for Albany and its still amber, but darker and less yellowish. Med=dk amber/brown; thick=blue/black. Over white=honey yellowish. Can go dull matt in places. Good functional glaze as liner, etc. Glaze Type: Ca SlipGlaze. Opacity: Varies. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Kaolin - theoretical 12.0 12.00 Custer feldspar 29.0 29.00 Dolomite 4.0 4.00 Whiting 20.0 20.00 Silica 30.0 30.00 Frit 3195 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 3.0 3.00
Comments:
USE WOLLASTONITE POWDER. Sub. Barnard clay for Albany and its still amber, but darker and less yellowish. Med=dk amber/brown; thick=blue/black. Over white=honey yellowish. Can go dull matt in places. Good functional glaze as liner, etc. Glaze Type: Ca SlipGlaze. Opacity: Varies. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer feldspar 19.4 19.00 Gerstley borate 3.1 3.00 Dolomite 2.0 2.00 Wollastonite 9.2 9.00 Whiting 14.3 14.00 Redart 29.6 29.00 Barnard clay 10.2 10.00 EPK 2.0 2.00 Flint 10.2 10.00 ----- -------- Totals: 100.0 98.00
Also add:
Red iron oxide 2.0 2.00
Comments:
Brown-golden. Moves some where thick, but not runny.
Recipe: (Percent, Batch)
Custer feldspar 26.4 26.40 Dolomite 4.4 4.40 Whiting 7.1 7.10 Strontium carbonate 16.9 16.90 Kaolin - theoretical 12.8 12.80 Silica 27.4 27.40 Frit 3134 5.1 5.10 ----- -------- Totals: 100.0 100.10
Also add:
Red iron oxide 2.5 2.50
Comments:
Brown-golden. Moves some where thick, but not runny.
Recipe: (Percent, Batch)
Custer feldspar 27.6 27.60 Dolomite 4.6 4.60 Whiting 21.0 21.00 EPK 13.0 13.00 Silica 28.5 28.50 Frit 3134 5.2 5.20 ----- -------- Totals: 100.0 99.90
Also add:
Red iron oxide 2.1 2.10
Comments:
Brown-golden. Moves some where thick, but not runny.
Recipe: (Percent, Batch)
Alberta slip 35.5 35.50 Wollastonite 14.0 14.00 K-200 feldspar 21.5 21.50 Gerstley borate 3.2 3.20 Whiting 7.5 7.50 EPK 3.2 3.20 Silica 15.1 15.10 ----- -------- Totals: 100.0 100.00
Also add:
Yellow ochre 7.5 7.50 Bentonite 6.5 6.50
Comments:
Recipe: (Percent, Batch)
Custer feldspar 32.3 30.00 Whiting 26.9 25.00 Flint 26.9 25.00 Kentucky OM #4 10.8 10.00 Gerstley borate 3.2 3.00 ----- -------- Totals: 100.0 93.00
Also add:
Bentonite 2.2 2.00 Yellow iron oxide 7.5 7.00
Comments:
From Ayumi Horie
Recipe: (Percent, Batch)
feldspar - theoretical 25.6 25.60 Whiting 26.6 26.60 Silica 30.9 30.90 Kaolin - theoretical 7.7 7.70 Frit 3124 9.2 9.20 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Yellow iron oxide 7.0 7.00
Comments:
From Ayumi Horie
Recipe: (Percent, Batch)
Custer feldspar 33.0 33.00 Dolomite 11.0 11.00 Whiting 17.0 17.00 Zinc oxide 6.0 6.00 EPK 11.0 11.00 Silica 22.0 22.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 5.0 5.00 Red iron oxide 2.0 2.00
Comments:
^ This glaze runs^ Frank Martin Art Deparment/Ceranics 92nd street YM-YWHA 1395 Lexington Ave NY, NY. 10128 p0tters2@aol.com
Recipe: (Percent, Batch)
Albany slip 35.9 35.90 Wollastonite 14.1 14.10 EPK 3.3 3.30 Gerstley borate 3.3 3.30 Whiting 7.6 7.60 Flint 14.1 14.10 Custer feldspar 21.7 21.70 ----- -------- Totals: 100.0 100.00
Also add:
Yellow ochre 8.7 8.70
Comments:
USE WOLLASTONITE POWDER. Sub. Barnard clay for Albany and its still amber, but darker and less yellowish. Med=dk amber/brown; thick=blue/black. Over white=honey yellowish. Can go dull matt in places. Good functional glaze as liner, etc. Glaze Type: Ca SlipGlaze. Opacity: Varies. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Alberta slip 77.0 77.00 Gerstley borate 3.0 3.00 Whiting 14.0 14.00 Silica 6.0 6.00 ----- -------- Totals: 100.0 100.00
Also add:
Yellow ochre 8.0 8.00
Comments:
USE WOLLASTONITE POWDER. Sub. Barnard clay for Albany and its still amber, but darker and less yellowish. Med=dk amber/brown; thick=blue/black. Over white=honey yellowish. Can go dull matt in places. Good functional glaze as liner, etc. Glaze Type: Ca SlipGlaze. Opacity: Varies. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
EPK 14.0 14.00 Dolomite 5.0 5.00 Whiting 19.0 19.00 Silica 29.0 29.00 Custer feldspar 27.0 27.00 Frit 3134 6.0 6.00 ----- -------- Totals: 100.0 100.00
Also add:
Yellow ochre 8.0 8.00
Comments:
Good functional glaze as liner, etc. Greenish-brown thin, brown thick
Recipe: (Percent, Batch)
Feldspar 47.9 47.90 Whiting 14.7 14.70 Strontium carbonate 11.0 11.00 Kaolin - theoretical 9.8 9.80 Silica 16.6 16.60 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.0 8.00 Bentonite 2.0 2.00
Comments:
theoretical amber from stable glaze limits.
Recipe: (Percent, Batch)
Feldspar 47.7 47.70 Strontium carbonate 11.0 11.00 Kaolin - theoretical 9.8 9.80 Silica 16.5 16.50 Bone ash 15.1 15.10 ----- -------- Totals: 100.0 100.10
Also add:
Red iron oxide 8.0 8.00 Bentonite 2.0 2.00
Comments:
theoretical amber from stable glaze limits.
Recipe: (Percent, Batch)
Nepheline syenite 34.1 34.10 Lithium carbonate 2.0 2.00 Whiting 12.1 12.10 Strontium carbonate 5.9 5.90 Kaolin - theoretical 1.2 1.20 Silica 44.6 44.60 ----- -------- Totals: 100.0 99.90
Also add:
Red iron oxide 8.0 8.00 Bentonite 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Custer feldspar 29.0 29.00 Whiting 20.5 20.50 EPK 19.0 19.00 Flint 31.5 31.50 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 7.0 7.00
Comments:
From Soda Glazing by Ruthann Tudball
Recipe: (Percent, Batch)
Potash feldspar 36.7 36.70 Flint 25.5 25.50 Whiting 18.9 18.90 Ball clay 9.2 9.20 Soda feldspar 5.1 5.10 Kaolin 2.6 2.60 Dolomite 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.0 8.00
Comments:
This is a dark brown glaze the can obscure slip and carving if thick. Good glaze surface.Moves if thick, but not runny. I've tried both of these glazes with mixed results. The amber celadon is almost identical to Cushing Amber Celadon. This is a better transparent amber honey glaze. RafaelMolina-Rodriguez rmr3431@dcccd.edu Variations -- +6% RIO= greener brown color 4% RIO = grey-green color like a celadon.
Recipe: (Percent, Batch)
Soda feldspar 57.1 57.13 EPK 14.3 14.26 Kentucky OM #4 7.2 7.18 Whiting 21.4 21.44 ----- -------- Totals: 100.0 100.01
Also add:
Cobalt carbonate 7.2 7.18
Comments:
Matt glaze almost black where thin, army green where thick. Nice colonial (bluish slate) over white slip Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Gerstley borate 13.0 13.00 Whiting 8.7 8.70 Zinc oxide 2.2 2.20 Custer spar 59.3 59.40 Ball clay 3.8 3.80 Barium carbonate 13.0 13.00 ----- -------- Totals: 100.0 100.10
Also add:
Tin oxide 7.6 7.60 Copper carbonate 0.5 0.50
Comments:
(Can substitute 9-13 Strontnium carb to make it food safe) [Editor's note - probably Andreson Pearl but originally written 'Amdreson'] Nice light robin's egg blue gloss, stable, pretty, unusual, similar to peach blossom but less texture. I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
Barium carbonate 22.9 22.90 Gerstley borate 3.8 3.80 Strontium carbonate 13.0 13.00 Wollastonite 3.4 3.40 Nepheline syenite 26.9 26.90 Ball clay 9.5 9.50 Flint 20.5 20.50 ----- -------- Totals: 100.0 100.00
Comments:
Variations -- Chartreuse + chrome 0.5
Recipe: (Percent, Batch)
EPK 10.0 10.00 Whiting 20.0 20.00 Silica 30.0 30.00 Potash feldspar 40.0 40.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 3.3 3.33 Rutile 3.3 3.33
Comments:
Here's an iron blue that I like. Gives a fine hare's fur glossy surface. The glaze has a tendency to settle a bit. We've also played with extra rutile and more reduction to increase the depth of the blue. submitted by: Richard Gralnik e-mail: rlg@patuxent.desktalk.com source for original recipe: El Camino College
Recipe: (Percent, Batch)
Dolomite 8.0 8.00 Whiting 34.0 34.00 Potash feldspar 5.0 5.00 Kaolin 33.0 33.00 Silica 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Here's one that I formulated and have used for a number of years. It is best applied by spraying but can be dipped, poured, etc. You have to work with the thickness to got the desired result. A light application will orange peel like a salt glaze while heavier applications will run. Too much thickness and you will get blistering. This glaze works well with most oxides. It also works best on porcelain or with white slips but don't be afraid to try anything...you never know. You can get this glaze to work at cone 8 and 9 by substituting Ball Clay for Kaolin. You might want to do a sub at cone 10 as well to observe the difference. Regards, Craig Martell-Oregon
Recipe: (Percent, Batch)
Hardwood ash 16.5 16.50 Softwood ash 16.5 16.50 Custer spar 39.0 39.00 EPK 13.0 13.00 Whiting 6.0 6.00 Barium carbonate 5.0 5.00 Flint 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.0 1.00 Black iron oxide 1.0 1.00
Comments:
Ashes washed 5 times and 60-mesh sieved. Beautiful and reliable ash glaze Often the surface is richly textured most likely by the presence of woodash. Submitted by: Edouard Bastarache (edouardb@sorel-tracy.qc.ca)
Recipe: (Percent, Batch)
Custer spar 39.0 39.00 EPK 13.0 13.00 Whiting 6.0 6.00 Barium carbonate 5.0 5.00 Flint 4.0 4.00 Ash wood 33.0 33.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.0 1.00 Black iron oxide 1.0 1.00
Comments:
Ashes washed 5 times and 60-mesh sieved. Beautiful and reliable ash glaze Often the surface is richly textured most likely by the presence of woodash. Submitted by: Edouard Bastarache (edouardb@sorel-tracy.qc.ca)
Recipe: (Percent, Batch)
Custer spar 30.0 30.00 Hardwood ash 30.0 30.00 Flint 30.0 30.00 Ball clay 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Ultrox 15.0 15.00 Cobalt oxide 5.0 5.00
Comments:
Ash washed 5 times and 60-mesh sieved Beautiful deep blue ash glaze *How long have you been using this glaze? 1 year *Where is it used? Studio *Where did this recipe come from? From my own experimentation *What do you like most about this glaze? Its deep blue shiny color *Is this glaze reliable? Yes *Does this glaze tend to craze/crawl/pinhole/etc.? If applied too thick it may pinhole a little bit *How do different firing temperatures/atmospheres affect the glaze? It is always fired at cone 8-10 in reduction *How does the glaze behave on different clay bodies? Well *What consistency should the glaze be for pouring/dipping? Medium consistency *How thickly should the glaze be applied to the pot? Medium coat *How does this glaze interact with other glazes? Not tested *What is your kiln type and size? Downdraft propane and 60 cubic feet *How do you typically fire? Clay reduction at cone/08, then slight reduction increasing with time until the final total reduction, followed by a period of reoxidation *Do you experience problems with the raw glaze? No *What is your water pH? 7.2 *Any other comments? Glaze named by my colleagues as "Bass Bleu" - Bass having been my nickname since my teen years, Bass is also the name that I use to sign my pots. *GlazeBase recipe* Submitted by: Edouard Bastarache (edouardb@sorel-tracy.qc.ca) Ice Cream Flavor: Vanilla -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
Custer feldspar 5.0 5.00 Whiting 31.0 31.00 Tennessee #10 24.0 24.00 Silica 22.5 22.50 Dolomite 2.5 2.50 Ash wood 15.0 15.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 0.8 0.80 Cobalt carbonate 0.5 0.50
Comments:
From Bill Van Gilder Variations -- grey/Green - add 4 rutile to the blue recipe
Recipe: (Percent, Batch)
Nepheline syenite 40.0 40.00 Custer feldspar 40.0 40.00 Wood ash 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
I bought a Dick Cooter bowl (a North Shore, Lake Superior Potter) with it on it and the recipe was a bonus. submitted by: Lee Love e-mail: leelove@mill2.MillComm.COM
Recipe: (Percent, Batch)
Dolomite 8.0 8.00 Whiting 34.0 34.00 Potash feldspar 5.0 5.00 Kaolin 33.0 33.00 Silica 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Here's one I formulated and have used for a number of years. It is best applied by spraying but can be dipped, poured, etc. You have to work with the thickness to got the desired result. A light application will orange peel like a salt glaze while heavier applications will run. Too much thickness and you will get blistering. This glaze works well with most oxides. It also works best on porcelain or with white slips but don't be afraid to try anything...you never know. You can get this glaze to work at cone 8 and 9 by substituting Ball Clay for Kaolin. You might want to do a sub at cone 10 as well to observe the difference. Regards, Craig Martell-Oregon
Recipe: (Percent, Batch)
Alberta slip 52.0 52.00 Whiting 32.0 32.00 Kentucky OM #4 16.0 16.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt oxide 1.0 1.00 Red iron oxide 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Potash feldspar 40.0 40.00 China clay 20.0 20.00 Dolomite 18.0 18.00 Talc 8.0 8.00 Whiting 5.0 5.00 Zinc oxide 4.0 4.00 Quartz 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 1.0 1.00
Comments:
re: your request for fake ash glazes here's one that we make called BP26S Light green 'ash' glaze. The glaze is typically low in silica and high in the alkaline earths - calcium and magnesia, and of the type that has a shiny glassy melt within which satiny matt crystals develop. Because it's used by electric kiln potters the light green colour is given by copper carbonate. If to be used in a reduction firing one would probably want to take out the copper and put in a few percent of iron oxide. Mike Bailey. Bath Potters' Supplies, UK
Recipe: (Percent, Batch)
Mixed hardwood ash 20.0 20.00 Dolomite 14.0 14.00 Silica 20.0 20.00 Custer spar 20.0 20.00 Nepheline syenite 14.0 14.00 EPK 10.0 10.00 Gerstley borate 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Black iron oxide 1.0 1.00
Comments:
Ash washed 5 times and 60-mesh sieved. Reliable mottled green ash glaze. It is a modification of James Chappell's AG-27 (first published in 1977) *GlazeBase recipe* Submitted by: Edouard Bastarache (edouardb@sorel-tracy.qc.ca)
Recipe: (Percent, Batch)
Wood ash 50.0 50.00 Kentucky OM #4 12.5 12.50 G-200 feldspar 12.5 12.50 Silica 12.5 12.50 Whiting 12.5 12.50 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
From Charlie Teft Nov/Dec. 05 Clay Times p.32. ctefft@guilford.edu. www.ctpottery.com. Ash is unwashed. Dry mix materials, blend w/water, mix w/drill, sieve through window screen. Not recommended for food surfaces. Very runny. Apply by spraying for thin coat. Variations -- White to tan = rutile 2% + titanium 2% or rutile 4% Yellow to brown = RIO 10% Med blue = cobalt carb 2% + RIO 1.5% Blue to black = cobalt carb 4.6 + RIO 3 + chrome 1
Recipe: (Percent, Batch)
Nepheline syenite 40.0 40.00 Custer feldspar 40.0 40.00 Wood Ash 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
I bought a Dick Cooter bowl (a North Shore, Lake Superior Potter) with it on it and the recipe was a bonus. submitted by: Lee Love e-mail: leelove@mill2.MillComm.COM
Recipe: (Percent, Batch)
Whiting 30.0 30.00 Strontium carbonate 10.0 10.00 Redart clay 60.0 60.00 ----- -------- Totals: 100.0 100.00
Also add:
Yellow ochre 4.0 4.00
Comments:
My favorite fake ash is called 'Hannah Fake Ash,' though I don't know the origin. Great in ^10 Reduction, salt/soda, wood, etc. It looks like what all the 'old guys' (sorry!) say Lorio's Ash looked before the Albany Slip went south and people used hard brick kilns and fired slow and so forth.I love it. Anyroad... You probably don't have Redart in Australia, either. Do a triaxial blend with any red clay, and two alkaline earth (Ca, Ba, Li, Sr, Mg) providers. You will be surprised at all the glazes you find! Don't need a computer, either. Good luck! steve grimmer carterville illinois grimmer@mychoice.net
Recipe: (Percent, Batch)
Custer feldspar 35.0 35.00 Wood ash 35.0 35.00 EPK 15.0 15.00 Dolomite 15.0 15.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 5.0 5.00
Comments:
originally specified Charcoal Briquette Ash is that is unwashed. submitted by: June Perry e-mail: GURUSHAKTI@aol.com
Recipe: (Percent, Batch)
Barnard slip 55.0 55.00 Whiting 45.0 45.00 ----- -------- Totals: 100.0 100.00
Comments:
My favorite very runny fake ash glaze: *Louis Katz lkatz@falcon.tamucc.edu *Texas A&M University Corpus Christi *6300 Ocean Drive, Art Department *Corpus Christi, Tx 78412 *Phone (512) 994-5987
Recipe: (Percent, Batch)
Custer feldspar 15.3 15.00 Dolomite 9.2 9.00 Strontium carbonate 6.9 6.75 Whiting 30.7 30.00 Ball clay 18.4 18.00 Flint 19.4 19.00 ----- -------- Totals: 100.0 97.75
Also add:
Iron oxide 4.1 4.00
Comments:
Streaks, webs, pulls, like wood ash. Recalculated by Bob Lanman from the old Hay's Drippy: Albany 60, Whiting 30, Barium 10 w/ new materials. Same look but a little more matt. Beautiful over white body, white slip. David Posner says this glaze looks great in oxidation with Mason stains added.
Recipe: (Percent, Batch)
Gerstley borate 8.5 8.45 Magnesium carbonate 1.9 1.86 Whiting 15.3 15.30 Wood ash 14.5 14.54 Custer feldspar 15.6 15.55 Georgia kaolin 10.9 10.91 Flint 33.4 33.39 ----- -------- Totals: 100.0 100.00
Comments:
For a Cone 6 glaze, Nepheline Syenite can be substituted for the Custer Feldspar. Kevin O'Hara asked about a reliable base formula for an ash glaze. We have been using the glaze base provided by Harold McWhinnie in his November 1986 'Ceramics Monthly' article (A Multipurpose Glaze, p. 75). We repeat it below. If you have any questions about this glaze, we believe that Harold is now monitoring the Clayart list regularly. We have experimented with various types of wood ash. We now use pecan hull ash. Fortunately, we have many pecan trees in the area along with cracking plants that kindly supply us with the hulls. There is a lot of oil in pecan hulls (including many nuts) so they burn hot with very little but fine ash. We do not wash this ash; however, we have found that we must wash other wood ash. We experimented with Victoria's Secret ash (burned their ceasely catalogs) but found it full of trash and required cleaning. John and Judy McCain Palo Pinto Pottery mccain@our-town.com
Recipe: (Percent, Batch)
Feldspar 10.0 10.00 Whiting 8.0 8.00 Flint 20.0 20.00 Ball clay 6.0 6.00 Kaolin 6.0 6.00 Albany slip 15.0 15.00 Ash wood 35.0 35.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 4.0 4.00
Comments:
From Scott Goldberg. Orig. calls for p spar.
Recipe: (Percent, Batch)
Custer feldspar 21.5 21.50 EPK 24.7 24.70 Silica 8.1 8.10 Talc theoretical 2.7 2.70 Whiting 43.0 43.00 ----- -------- Totals: 100.0 100.00
Comments:
Fake ash. Very runny rivulet glaze. Apply very thinly. Good for accenting texture, over slip of slip trailing. From Richard Burkett.
Recipe: (Percent, Batch)
Kentucky OM #4 20.0 20.00 G-200 feldspar 40.0 40.00 Wood ash 40.0 40.00 ----- -------- Totals: 100.0 100.00
Comments:
Clay Times Nov/Dec. 05 p.56. Not for food surfaces. Less runny than Fresca Ash. Can be dipped. Does run. Variations -- cobalt carb 2 RIO 2 Washes can be applied like watercolors. Increases fluidity of glaze. Often a thin layer of base or rutile-colored glaze sprayed over washes. tan to brown wash: rutile 35% + RIO 35% + gerstley borate 30 brown wash: RIO 70% + gerstley borate 30% black wash: Mason 6600 70% + gerstley borate 30%
Recipe: (Percent, Batch)
Wood ash 50.0 50.00 Redart 50.0 50.00 ----- -------- Totals: 100.0 100.00
Comments:
From Conner Burns in Clay Times Mar/Apr 07. Test. Add more ash to make more rivulets or more Redart to stiffen up. Brown thin to green thicker w/o colorants. Variations -- Blue = +1% Cobalt carb Green = + 3-5% copper carb brown/gold: +3% nickel ox Blue/green +1% cobalt carb and 0.5% chrome ox
Recipe: (Percent, Batch)
Custer spar 30.0 30.00 Ash wood 45.0 45.00 Yellow ochre 25.0 25.00 ----- -------- Totals: 100.0 100.00
Comments:
Always works. Glaze Type: Ca AshGlaze SlipGlaze. Opacity: Semi-opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Albany slip 60.0 60.00 Whiting 30.0 30.00 Barium carbonate 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 5.0 5.00
Comments:
From Nan Smith Variations -- also try +10% rutile
Recipe: (Percent, Batch)
Avery kaolin 25.0 25.00 Grolleg 50.0 50.00 Calcined kaolin 25.0 25.00 ----- -------- Totals: 100.0 100.00
Comments:
Does anyone know of a good substitute for Avery since it is not longer available or is it? I get a very satisfying orange with this at cone 10 in a salt fring. Now I've run out and need some suggestions. kurt wild
Recipe: (Percent, Batch)
Grolleg 57.0 57.00 Kentucky OM #4 35.0 35.00 Nepheline syenite 8.0 8.00 ----- -------- Totals: 100.0 100.00
Comments:
I've tried a bunch, and not had much luck until recently. I've been using one for a few firings now that I like pretty well; it responds in an interesting way to different atmospheres and clay bodies. A little more inFiring: Some salting is involved in all of the wood firings I have used this slip in- generally about 1 1/2 - 3 pounds per chamber. These are not super long firings -in the 14-18 hour range, so a lot of the surface effect comes from the salt rather than from a lot of ash. I have also used it in salt/soda and it looked great-more orange than brown. I haven't used it with a real heavy load of salt but if you try it I'd like yo know how it looks. Mix just a little on the thin side and its works on bisque just as well as on geenware I've been working up some variations using Helmer kaolin, but haven't hit one I like yet. If you get a response about the Avery will you pass it along? Thanks- if you try this out let me know what you think. submitted by: John Anthony e-mail: JTRAX@AOL.com
Recipe: (Percent, Batch)
Frit 3110 36.4 36.40 Lithium carbonate 8.0 8.00 Barium carbonate 6.8 6.80 EPK 20.4 20.40 Flint 28.4 28.40 ----- -------- Totals: 100.0 100.00
Comments:
From Ayumi Horie. High alkaline glaze. Runs and crazes. Not good for food surfaces. Variations -- water blue +2% cu chartreuse +0.5% chrome
Recipe: (Percent, Batch)
Kona F-4 feldspar 37.7 40.00 Whiting 9.4 10.00 Dolomite 14.2 15.00 EPK 14.2 15.00 Flint 9.4 10.00 Magnesium carbonate 9.4 10.00 Bone ash 5.7 6.00 ----- -------- Totals: 100.0 106.00
Comments:
From Ayumi Horie.
Recipe: (Percent, Batch)
Nepheline syenite 28.5 28.50 Talc 26.5 26.50 Kaolin - theoretical 15.6 15.60 Silica 6.8 6.80 Bone ash 22.6 22.60 ----- -------- Totals: 100.0 100.00
Comments:
From Ayumi Horie
Recipe: (Percent, Batch)
Kona F-4 feldspar 36.4 36.40 Dolomite 11.0 11.00 Whiting 5.5 5.50 Strontium carbonate 20.0 20.00 Soda ash 3.6 3.60 EPK 18.0 18.00 Flint 5.5 5.50 ----- -------- Totals: 100.0 100.00
Comments:
Bright, mottled, sugary glaze. From Ayumi Horie. Variations -- light blue and rust + 1% Cu soft, creamy white + 1% RIO
Recipe: (Percent, Batch)
Flint 33.7 33.50 Custer feldspar 23.1 23.00 Dolomite 14.6 14.50 Kaolin 12.6 12.50 Whiting 11.1 11.00 Barium carbonate 1.0 1.00 Gerstley borate 4.0 4.00 ----- -------- Totals: 100.0 99.50
Also add:
Tin oxide 0.5 0.50
Comments:
Shiny translucent to opaque. Nice variations. Yellow-green is a nice complement w/Green sparkle VC matte revised glaze. From Margaret Bohls. Variations -- green: copper 3 + vanadium Mason stain 7% yellow-green: copper 1.5 + vanadium Mason stain 9%
Recipe: (Percent, Batch)
Cornwall Stone 36.7 36.70 Whiting 27.5 27.50 EPK 18.3 18.30 Flint 12.8 12.80 Magnesium carbonate 4.6 4.60 ----- -------- Totals: 100.0 99.90
Comments:
Andy Shaw base. He increased silica to reduce crazing.
Recipe: (Percent, Batch)
Strontium carbonate 45.0 45.00 EPK 10.0 10.00 Flint 10.0 10.00 Whiting 10.0 10.00 Talc theoretical 20.0 20.00 Zinc oxide 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
Fake ash glaze. Nice w/stains.From Ayumi Horie. Variations -- 4% red or 1% yellow iron gray/green 8% Cu Carb light blue .25% cobalt carb + 5% titanium cream/gray .25 CrO + 4% rutile
Recipe: (Percent, Batch)
Minspar 48.0 48.00 Whiting 18.0 18.00 EPK 5.0 5.00 Silica 24.0 24.00 Zinc oxide 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
Doug Peltzman, Pottery Making Illus Jul/Aug 2013. Variations -- Wintergreen: + cp[[er carb 0.5%
Recipe: (Percent, Batch)
Silica 29.7 29.70 EPK 5.0 4.95 Soda feldspar 19.8 19.80 Talc 13.9 13.86 Gerstley borate 31.7 31.68 ----- -------- Totals: 100.0 99.99
Comments:
A very nice base comes from Randy's Red with the iron omitted. You can add up to 10% zircopax or other whitener, I would suggest 5% for starters. Works good with other colorants also. Cobalt carbonate will give a purple. Very Stable! Rose Downs submitted by: dianna rose downs
Recipe: (Percent, Batch)
Buckingham feldspar 53.7 53.70 Whiting 12.9 12.90 Barium carbonate 2.5 2.50 Kaolin 6.0 6.00 Flint 22.4 22.40 Zinc oxide 2.5 2.50 ----- -------- Totals: 100.0 100.00
Comments:
From Kathryn Finnerty during NSCAD days. She recommended the blue variation. Variations -- Orange: iron 7% + rutile 5% Light Blue: Copper 0.5% + Iron 1% + Rutile 1% Blue Orange: iron 4% + rutile 2.5%
Recipe: (Percent, Batch)
Kona Feldspar 36.4 36.36 Whiting 20.5 20.45 EPK 11.4 11.36 Silica 31.8 31.82 ----- -------- Totals: 100.0 99.99
Comments:
This glaze does very well with colorants and performs equally well in oxidation or reduction. submitted by: Christine Winokur e-mail: Kickwheel@aol.com
Recipe: (Percent, Batch)
Cornwall Stone 46.0 46.00 Whiting 34.0 34.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
From Ayumi Horie. A satiny classic that produces crystals. Makes any color and takes stains well.
Recipe: (Percent, Batch)
Potash feldspar - theoretical 25.3 25.80 Whiting 35.0 35.60 Kaolin - theoretical 25.6 26.10 Silica 14.0 14.30 ----- -------- Totals: 100.0 101.80
Comments:
From Ayumi Horie. A satiny classic that produces crystals. Makes any color and takes stains well.
Recipe: (Percent, Batch)
Cornwall Stone 46.0 46.00 Whiting 34.0 34.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
From Ayumi Horie. A satiny matt that produces crystals. Makes any color and takes stains well.
Recipe: (Percent, Batch)
Custer feldspar 42.5 43.00 Whiting 21.7 22.00 EPK 10.9 11.00 Flint 21.7 22.00 Zinc oxide 3.2 3.20 ----- -------- Totals: 100.0 101.20
Also add:
Rutile 6.4 6.50 Bentonite 1.1 1.10
Comments:
Recipe: (Percent, Batch)
Silica 25.1 25.13 EPK 22.7 22.69 Nepheline syenite 8.6 8.61 Ferro frit 3134 19.9 19.93 Bone ash 9.0 8.97 Talc 14.7 14.67 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.6 8.59
Comments:
Unity (from Insight calculation) CaO 0.49* 8.55% MgO 0.36* 4.51% K2O 0.02* 0.46% Na2O 0.14* 2.79% Fe2O3 0.17 8.32% TiO2 0.00 0.06% P2O5 0.09 3.92% B2O3 0.20 4.37% Al2O3 0.32 10.12% SiO2 3.01 56.90% Cost/kg 0.79 Si:Al 9.54 SiB:Al 10.17 Expan 6.43 I just had a look at the Berry Rust glaze tests, the original formula, and the recalculated fritted formula. They were fired to cone 10 Ox. buy my wife, Linda Owen, in her trusty Skutt Kiln. Thanx Linda! The two glazes are nearly identical. I didn't expect that, but ya never know. The original formula with gerstley borate has more calcium-borate-iron crystals floating in the matrix but you really can't see this without a hand lens. A customer who has purchased pots with the original formula would be hard pressed to tell the difference. I feel like I've just taken the Pepsi Challenge!! The tests were fired on porcelain. Four tiles were made of each glaze, eight in all and the separate formulas were fired side by side in the top, middle, and bottom of the kiln. No significant differences were seen. I might also mention that I used English Bone Ash, and not Tri-Calcium Phos. All the tiles were inspected with a hand lens and no crazing was evident in either formula. A separate set has been fired to cone 10 R but won't be available until tomorrow. That's about it for now, e-mail me or post to clayart if I've forgotten to mention anythin, and I probably have...it's my hobby! The formulas and receipes are posted below. Happy testing,.....Craig Martell-Oregon ashglaze@teleport.com
Recipe: (Percent, Batch)
Silica 27.3 27.27 EPK 18.2 18.18 Nepheline syenite 18.2 18.18 Dolomite 9.1 9.09 Gerstley borate 9.1 9.09 Talc 9.1 9.09 Bone ash 9.1 9.09 ----- -------- Totals: 100.0 99.99
Also add:
Red iron oxide 9.1 9.09
Comments:
Use Pure Red Iron Oxide . This glaze gives a fairly intense cranberry rust in the cone 7-10 range and is quite consistent in its results. Every once in a while, when the glaze is thicker than normal, a pale but distinctive green (a little like a pale chrome green) begins to float on the surface. Any suggestions as to why? In addition, in reference to an earlier note about the changing reds over time, I think this red becomes somewhat brighter (and more red) the older the glaze is. I don't yet use a lot of it so it sits for quite a while (3-5 months). submitted by: Bob Kavanagh e-mail: bkav@VAX2.CONCORDIA.CA
Recipe: (Percent, Batch)
Nepheline syenite 66.7 66.70 Whiting 4.8 4.80 Gerstley borate 1.9 1.90 Petalite 14.3 14.30 Kentucky OM #4 7.6 7.60 Bone ash 4.7 4.70 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 1.5 1.50 Bentonite 1.0 1.00
Comments:
From Sam Chung in Clay Times Mar/Apr. 2008.
Recipe: (Percent, Batch)
Barium carbonate 2.5 2.50 Whiting 16.0 16.00 Custer feldspar 49.5 49.50 OM-4 Ball Clay 10.0 10.00 Silica 22.0 22.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 1.3 1.28 Cobalt oxide 4.9 4.93 Manganese dioxide 2.5 2.46 Red iron oxide 5.0 4.96
Comments:
submitted by: June M. Perry e-mail: GURUSHAKTI@aol.com
Recipe: (Percent, Batch)
Barium carbonate 2.5 2.50 Whiting 16.0 16.00 Custer feldspar 49.5 49.50 Kentucky OM #4 10.0 10.00 Silica 22.0 22.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 1.3 1.28 Cobalt oxide 4.9 4.93 Manganese dioxide 2.5 2.46 Red iron oxide 5.0 4.96
Comments:
submitted by: June M. Perry e-mail: GURUSHAKTI@aol.com
Recipe: (Percent, Batch)
Custer feldspar 43.2 43.16 Dolomite 12.6 12.63 Whiting 2.1 2.11 Tennessee #5 Ball Clay 7.4 7.37 Silica 34.7 34.74 ----- -------- Totals: 100.0 100.01
Also add:
Iron Oxide 6.0 6.00 Rutile 4.0 4.00
Comments:
submitted by: June M. Perry e-mail: GURUSHAKTI@aol.com
Recipe: (Percent, Batch)
Dolomite 5.0 5.00 Whiting 6.0 6.00 Soda feldspar 67.0 67.00 EPK kaolin 5.0 5.00 Flint 17.0 17.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 3.0 3.00 Red iron oxide 4.0 4.00 Bentonite 1.0 1.00
Comments:
Thought I would send this recipe Jeremy requested out to the whole group. It's a very nice gloss black glaze. I acquired the recipe from Dennis Olson who used this quite extensively with masking and sandblasting which resulted in a nice high fire black on black surface. Good luck! Rafael rafael molina-rodriguez
Recipe: (Percent, Batch)
Albany slip 65.0 65.00 Nepheline syenite 15.0 15.00 Barium carbonate 10.0 10.00 Talc 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 1.0 1.00 Manganese dioxide 2.0 2.00 Cobalt oxide 1.0 1.00 Iron oxide 4.0 4.00
Comments:
A rich black satin mat with speckles. Glaze Type: Mg Ca SlipGlaze. Opacity: Opaque . Firing type: Ox or Red From Val Cushing. VC ed
Recipe: (Percent, Batch)
Albany slip 65.0 65.00 Nepheline syenite 15.0 15.00 Barium carbonate 10.0 10.00 Talc theoretical 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 1.0 1.00 Manganese dioxide 2.0 2.00 Cobalt oxide 1.0 1.00 Iron oxide 4.0 4.00
Comments:
A rich black satin mat with speckles. Glaze Type: Mg Ca SlipGlaze. Opacity: Opaque . Firing type: Ox or Red From Val Cushing. VC ed
Recipe: (Percent, Batch)
Barnard clay 88.0 88.00 Nepheline syenite 12.0 12.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt oxide 1.5 1.50
Comments:
(I call it Steves Black because Steve Dominguez gave it to me) The glaze made in this manner is a rather dry black surface, but nice. Increas e the Neph. Sy. as you wish to reduce the dryness and increase the smooth quality of the glaze surface. This glaze works very well in salt firing as well as red. fire and is especially nice over a white clay body in salt. Only a thin glaze application is necessary for coverage. I hope this glaze works well for you. David Cuzick Claycuzian@aol.com
Recipe: (Percent, Batch)
Custer feldspar 32.7 32.70 Silica 32.7 32.70 Whiting 15.4 15.40 Kentucky OM #4 9.6 9.60 EPK 9.6 9.60 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.0 8.00 Cobalt carbonate 3.8 3.80
Comments:
The only black I see in Coleman's recipe book that mentions breaking blue ^8-10 reduction Shiny jet black with a slight metallic surface. If it is used thinly over a light colored stoneware or porcelain it will tend to break blue over edges. It will shift slightly at cone 10. joyce lee, jim lee
Recipe: (Percent, Batch)
G-200 feldspar 38.2 34.00 Ball clay 12.4 11.00 Custer spar 27.0 24.00 Dolomite 9.0 8.00 Flint 9.0 8.00 Whiting 4.5 4.00 ----- -------- Totals: 100.0 89.00
Also add:
Zircopax 2.2 2.00 Black Mason Stain 4.5 4.00 Red iron oxide 4.5 4.00
Comments:
From Ruthann Tudball's "Soda Glazing"
Recipe: (Percent, Batch)
Kentucky OM #4 12.4 12.40 Custer feldspar 65.1 65.20 Dolomite 9.0 9.00 Silica 9.0 9.00 Whiting 4.5 4.50 ----- -------- Totals: 100.0 100.10
Also add:
Zircopax 2.2 2.20 Bentonite 2.2 2.20 Red iron oxide 4.5 4.50
Comments:
+Mason 6600 4.5%. Used for once-fire, dry glaze at Curaumilla.
Recipe: (Percent, Batch)
Custer spar 20.0 20.00 Kona F-4 feldspar 20.0 20.00 Whiting 2.0 2.00 Dolomite 15.0 15.00 Talc 13.0 13.00 Ball clay 10.0 10.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Manganese dioxide 4.0 4.00
Comments:
then add 2% Bentonite and 4% Manganese (In particular, lately I've wanted to use a reliable cone 10 black satin/waxy glaze, in case you know of one.) Eric, you might like to try Charlie D Manganese. I've seen it used successfully at the 92nd Street Y in the gas kiln, cone 10, reduction for more years than it would be discreet to say: Hope you enjoy it, Jaine in Cresskill
Recipe: (Percent, Batch)
Dolomite 8.5 8.50 Custer feldspar 23.3 23.30 Nepheline syenite 8.8 8.80 Kaolin 13.7 13.70 Flint 16.2 16.20 Kona F-4 spar 16.7 16.70 Wollastonite 6.7 6.70 Bone ash 1.5 1.50 Whiting 4.7 4.70 ----- -------- Totals: 100.0 100.10
Also add:
Red iron oxide 1.5 1.50 Cobalt carbonate 2.3 2.30 Copper carbonate 2.3 2.30
Comments:
So here's a black glaze I've just developed, and I hereby throw to the sharks It's probably unnecessarily complicated because it's a hybrid of two other glazes. I think I'd rather have more RIO than Cobalt, due to cost, but it's hard to knock success, and it breaks to a nice blue when white is over it. -- Also, it wouldn't surprise me a bit if the bone ash is superfluous The recent posts on foodsafe black have prompted me to state my own opinion on black glazes. I think black glazes need not be avoided totally for foodware, but common sense argues that some blacks are better than others. If the base glaze doesn't leach harmful chemicals, then one must concentrate on combinations of oxides to produce the color with the least toxicity. Though I've never seen an authoritative ordered list of nasty chemicals, Red Iron Oxide, Cobalt Carb, and Copper Carb seem safer to me than Manganese Dioxide, Nickel, Cadmium, and Chrome. From an old Laurel's Kitchen cookbook, I read that Iron, Copper, Zinc, Manganese, Cobalt, Chromium, Nickel, Tin, and even Vanadium are all trace minerals essential for animals. I assert that most glazes release traces at best of these minerals. However, we are caught in a world which can measure in Parts per Billion, and all kinds of things look significant at that level. I sometimes wonder how long the ozone holes at the poles existed before we had the means to ascertain their existence. Brad Sondahl http://www.camasnet.com/~asondahl Contributing to the potluck of the WWW
Recipe: (Percent, Batch)
Minspar Soda Feldspar 57.0 57.00 EPK 9.0 9.00 Redart 25.0 25.00 Dolomite 6.5 6.50 Whiting 2.5 2.50 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 5.0 5.00 Manganese dioxide 3.7 3.70 Cobalt oxide 1.3 1.30
Comments:
This glaze is well balanced and has plenty of silica, but with all those metals, I don't use it on food surfaces. My 'Rhodes Black' is quite different than yours. David Hendley Maydelle, Texas See David Hendley's Pottery Page at http://ww.sosis.com/hendley/david
Recipe: (Percent, Batch)
Dolomite 20.0 20.00 Soda feldspar 42.0 42.00 EPK 18.0 18.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.0 1.00 Red iron oxide 3.5 3.50 Chrome oxide 3.5 3.50 Manganese dioxide 3.5 3.50
Comments:
Stable semimatt black. You can reduce the cobalt and increase the other metals to save some $$. I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai * INFORMATION FOR GLAZEBASE * (Please fill in whatever information you can - if you don't know, leave blank, or delete question) * How long have you been using this glaze? * Where is it used? (name of studio/school) * Where did this recipe come from? (name of person/book/etc. and approximate date) * What do you like most about this glaze? * Is this glaze reliable? * Does this glaze tend to craze/crawl/pinhole/etc.? What conditions encourage the flaws? How do you avoid them? * How do different firing temperatures/atmospheres affect the glaze? * How does the glaze behave on different clay bodies? * What consistency should the glaze be for pouring/dipping? (Give specific gravity if known.) * Do you experience problems with the raw glaze? (rapid settling, pudding consistency, mold, evil smell, etc.) Do you know a cure for the problem? * How thickly should the glaze be applied to the pot? * How does this glaze interact with other glazes? Can you suggest some good combinations? * Kiln type and size - * Firing data (heat/cooling ramps, soak time, reduction) - * Water pH - * Your name and email address -
Recipe: (Percent, Batch)
Nepheline syenite 16.7 16.70 Albany Slip Clay 83.3 83.30 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt Oxide, Black 5.6 5.60
Comments:
^10 glaze, can be used in either reduction or oxidation. It looks metallic and satiny only in reduction, though. It is extremely stable and very dependable... Its a great glaze. It even matures as early as ^6. Of course its an Albany glaze. submitted by: Becky Shope e-mail: rashope@iglou.com
Recipe: (Percent, Batch)
Cornwall Stone 42.0 42.00 Dolomite 15.0 15.00 Whiting 10.0 10.00 EPK 23.0 23.00 Flint 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
ochre 6.0 6.00 Cobalt carbonate 2.0 2.00 Chromium oxide 1.0 1.00
Comments:
From Sam Chung.
Recipe: (Percent, Batch)
Talc 5.0 5.00 Soda feldspar 42.0 42.00 Calcined kaolin 13.0 13.00 Ball clay 8.0 8.00 Whiting 15.0 15.00 Silica 17.0 17.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.2 1.20 Chrome oxide 2.2 2.20 Iron oxide 10.0 10.00 Manganese dioxide 3.0 3.00
Comments:
Note - make sure you add the black stain, which cannot be listed in the regular ingredients, or the program won't calculate Variations -- Black Stain 5
Recipe: (Percent, Batch)
Barnard clay 9.5 9.45 Custer feldspar 49.6 49.60 Whiting 15.4 15.35 Barium carbonate 2.4 2.36 Flint 23.2 23.24 ----- -------- Totals: 100.0 100.00
Also add:
Manganese dioxide 2.4 2.36 Cobalt oxide 3.5 3.54 Chrome oxide 1.2 1.18 Red iron oxide 4.7 4.72
Comments:
Here is a Mirror Black recipe but with barium, manganese and chrome I don't think you'd call it non-toxic...Strontium might sub for Barium okay (.75/1) but not sure what about the chrome and manganese... Mishy Michelle Lowe, potter in the Phoenix desert \|/ | mishlowe@indirect.com -O- | | mishlowe@aztec.asu.edu /|\ | | | |_|_| http://www.amug.org/~mishlowe ____ | -\ /-----|----- ( ) <__> ------------------------------
Recipe: (Percent, Batch)
G-200 spar 43.1 45.30 Whiting 18.3 19.30 Flint 11.0 11.60 EPK 22.8 24.00 Zinc oxide 4.8 5.00 ----- -------- Totals: 100.0 105.20
Also add:
Rutile 2.9 3.00 Tin oxide 1.9 2.00 Cobalt oxide 1.0 1.00 Red iron oxide 7.6 8.00 Manganese dioxide 2.9 3.00
Comments:
Pitch-black "tête de nègre" glossy glaze. The description is from the author but he does not mean to offend anyone *How long have you been using this glaze? 20 years *Where did this recipe come from? Michel Lemire M.F.A., Trois-Rivières, Québec. Michel had a lot to do with the founding of the Canadian "National Biennial of Ceramics". *What do you like most about this glaze? Great glossy black glaze *Is this glaze reliable? Yes *Does this glaze tend to craze/crawl/pinhole/etc.? No *What consistency should the glaze be for pouring/dipping? Medium *How thickly should the glaze be applied to the pot? Medium *What is your kiln type and size? Downdraft, propane, atmospheric and 60 cubic feet *How do you typically fire? Oxidation until clay reduction at cone/08.then light reduction increasing with time until the final total reduction of 20 minutes followed by a period of reoxidation of the same length *GlazeBase recipe* Submitted by: Edouard Bastarache (edouardb@sorel-tracy.qc.ca
Recipe: (Percent, Batch)
Potash feldspar 42.0 42.00 Whiting 13.0 13.00 Zinc oxide 12.0 12.00 Soda ash 3.0 3.00 Kaolin 8.0 8.00 Silica 22.0 22.00 ----- -------- Totals: 100.0 100.00
Also add:
Iron oxide 4.0 4.00 Cobalt carbonate 2.0 2.00 Chrome oxide 4.0 4.00
Comments:
Recipe: (Percent, Batch)
Custer feldspar 78.8 78.84 Colemanite 10.7 10.69 Whiting 5.5 5.51 EPK 5.0 4.96 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 4.2 4.19 Manganese dioxide 4.2 4.19 Cobalt carbonate 2.1 2.09
Comments:
A really great glossy black. from Michelle Lowe, potter in the Phoenix desert mishlowe@indirect.com mishlowe@aztec.asu.edu
Recipe: (Percent, Batch)
Redart 55.0 55.00 Nepheline syenite 20.0 20.00 Talc theoretical 15.0 15.00 Strontium carbonate 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Chromium oxide 1.0 1.00 Cobalt carbonate 2.0 2.00 Manganese dioxide 2.0 2.00
Comments:
reduction soda. From Lorna Meaden.
Recipe: (Percent, Batch)
Kona F-4 feldspar 20.0 20.00 Custer feldspar 20.0 20.00 Dolomite 15.0 15.00 Talc theoretical 13.0 13.00 Whiting 2.0 2.00 Ball clay 10.0 10.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Iron oxide 3.0 3.00 Cobalt oxide 2.0 2.00 Manganese dioxide 1.0 1.00 Chrome oxide 3.0 3.00
Comments:
a very nice, stable, satiny cone 9-10 reduction black satin glaze. gail dapogny in ann arbor james dapogny
Recipe: (Percent, Batch)
Kona F-4 Spar 20.0 20.00 Custer feldspar 20.0 20.00 Dolomite 15.0 15.00 Talc theoretical 13.0 13.00 Whiting 2.0 2.00 Ball clay 10.0 10.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 1.0 1.00 Red iron oxide 3.0 3.00 Manganese dioxide 2.0 2.00 Cobalt oxide 3.0 3.00
Comments:
Use granular Mn 80 mesh if you want silvery looking specks. Formulated as an Albany-free replacement for Black Satin Doll. Tested EAC Summer '91 VC ed
Recipe: (Percent, Batch)
Kona F-4 Spar 20.0 20.00 Custer feldspar 20.0 20.00 Dolomite 15.0 15.00 Talc 13.0 13.00 Whiting 2.0 2.00 Ball clay 10.0 10.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 1.0 1.00 Red iron oxide 3.0 3.00 Manganese dioxide 2.0 2.00 Cobalt oxide 3.0 3.00
Comments:
Use granular Mn 80 mesh if you want silvery looking specks. Formulated as an Albany-free replacement for Black Satin Doll. Tested EAC Summer '91 VC ed
Recipe: (Percent, Batch)
Kona F-4 Spar 20.0 20.00 Custer feldspar 20.0 20.00 Dolomite 15.0 15.00 Talc theoretical 13.0 13.00 Whiting 2.0 2.00 Ball clay 10.0 10.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 1.0 1.00 Red iron oxide 3.0 3.00 Manganese dioxide 2.0 2.00 Cobalt oxide 3.0 3.00
Comments:
Use granular Mn 80 mesh if you want silvery looking specks. Formulated as an Albany-free replacement for Black Satin Doll. Tested EAC Summer '91 VC ed
Recipe: (Percent, Batch)
Custer feldspar 52.9 53.00 Whiting 12.6 12.60 Strontium carbonate 1.8 1.80 Zinc oxide 2.4 2.40 EPK 8.7 8.70 Flint 21.6 21.60 ----- -------- Totals: 100.0 100.10
Also add:
Red iron oxide 5.0 5.00 Bentonite 3.0 3.00
Comments:
Recipe: (Percent, Batch)
Kona F-4 feldspar 67.0 67.00 Whiting 6.0 6.00 Dolomite 5.0 5.00 EPK 5.0 5.00 Silica 17.0 17.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 5.0 5.00 Cobalt carbonate 3.0 3.00 Bentonite 2.0 2.00
Comments:
Reliable black with a silvery sheen. UF shop glaze.
Recipe: (Percent, Batch)
Potash feldspar 43.1 43.10 Whiting 18.4 18.40 Silica 11.0 11.00 Kaolin 22.8 22.80 Zinc oxide 4.7 4.70 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 1.9 1.90 Rutile 2.9 2.90 Cobalt oxide 1.0 1.00 Red iron oxide 7.6 7.60
Comments:
Here is a cone 9-10 black glaze recipe that has no name but looks like what you describe; irridescent, satin charcoal black in reduction; like a black pearl. I acquired this glaze 25 years ago & if I had a gas kiln this would still be my favorite glaze. submitted by: Anne Fallis-Elliott, NYC e-mail: FallisT@aol.com
Recipe: (Percent, Batch)
Custer spar 45.9 45.85 Flint 24.5 24.45 Whiting 14.2 14.19 Ball clay 8.7 8.73 Borax 4.6 4.59 Zinc oxide 2.2 2.18 ----- -------- Totals: 100.0 99.99
Also add:
Cobalt oxide 5.0 5.02 Red iron oxide 3.3 3.28 Chrome oxide 1.1 1.09
Comments:
----------------------------Original message---------------------------- You probably got the recipe already considering how long it takes me to research it, but here is the one that we use at the school. Note that this recipe is set for larger batches and all quantities are in grams. Good Luck Sorry I forgot the particulars. And since I have neglected ( because I was movingwhile working full time) to keep up with the group, I am now looking at 802 messages, many of which I will not read and will have to pick up the new threads as they come along. It is also why this response is not more timely. Sloan's Black is a cone 10 glaze; as I am sure that Vince or someone in this group has subsequently pointed out. At (10) the glaze is a thick rich black with a silvery surface finish. At (11) it is a very nice glossy black of the same thick substance. Dave Durnford Box 2145 Missoula, Montana 59806 University of Montana Art Department Durnford@selway.umt.edu
Recipe: (Percent, Batch)
Custer spar 45.9 45.85 Flint 24.5 24.45 Whiting 14.2 14.19 Ball clay 8.7 8.73 Borax 4.6 4.59 Zinc oxide 2.2 2.18 ----- -------- Totals: 100.0 99.99
Also add:
Cobalt oxide 5.0 5.02 Red iron oxide 3.3 3.28 Chrome oxide 1.1 1.09
Comments:
----------------------------Original message---------------------------- You probably got the recipe already considering how long it takes me to research it, but here is the one that we use at the school. Note that this recipe is set for larger batches and all quantities are in grams. Good Luck Sorry I forgot the particulars. And since I have neglected ( because I was movingwhile working full time) to keep up with the group, I am now looking at 802 messages, many of which I will not read and will have to pick up the new threads as they come along. It is also why this response is not more timely. Sloan's Black is a cone 10 glaze; as I am sure that Vince or someone in this group has subsequently pointed out. At (10) the glaze is a thick rich black with a silvery surface finish. At (11) it is a very nice glossy black of the same thick substance. Dave Durnford Box 2145 Missoula, Montana 59806 University of Montana Art Department Durnford@selway.umt.edu
Recipe: (Percent, Batch)
Albany slip 75.0 75.00 Nepheline syenite 25.0 25.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 5.0 5.00
Comments:
Karen Newgard uses Alberta slip in place of Albany in this.
Recipe: (Percent, Batch)
Nepheline syenite 25.1 25.10 Dolomite 8.5 8.50 Soda ash 0.0 0.05 Whiting 3.6 3.60 Custer feldspar 3.2 3.20 Redart clay 43.8 43.80 EPK 2.4 2.40 Silica 13.4 13.40 ----- -------- Totals: 100.0 100.05
Also add:
Cobalt carbonate 5.0 5.00 Rutile 0.2 0.20
Comments:
The original recipe that I have is: Albany Slip 75 Neph Sy 25 Cobalt Carb 5 Since I haven't had a source for Albany, I incorporated the glaze with an Albany substitute formula out of CM: If this is not fired properly, it boils in an enclosed container, but in my copper firings it always seems to turn out. It turns a dark, cobalt blue over white base glazes. It never breaks brown. good luck submitted by: Brian Voth e-mail: bvoth@southwind.net
Recipe: (Percent, Batch)
Nepheline syenite 25.1 25.05 Dolomite 8.5 8.53 Soda ash 0.1 0.05 Whiting 3.6 3.59 Custer feldspar 3.2 3.18 Redart clay 43.8 43.82 EPK 2.4 2.41 Silica 13.4 13.36 ----- -------- Totals: 100.0 99.99
Also add:
Cobalt carbonate 5.0 5.01 Rutile 0.2 0.21
Comments:
I use St. John's Black. It sounds like something that would work for you. It is very stable as far as flowing is concerned. The original recipe that I have is: Albany Slip 75 Neph Sy 25 Cobalt Carb 5 Since I haven't had a source for Albany, I incorporated the glaze with an Albany substitute formula out of CM: If this is not fired properly, it boils in an enclosed container, but in my copper firings it always seems to turn out. It turns a dark, cobalt blue over white base glazes. It never breaks brown. good luck submitted by: Brian Voth e-mail: bvoth@southwind.net
Recipe: (Percent, Batch)
Alberta slip 80.0 80.00 Nepheline syenite 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt oxide 5.0 5.00
Comments:
From Margaret Bohls. Fired cone 9 electric. Very shiny black in oxidation, slightly metallic in reduction. I use this as a liner for most things, but not with the Rexrode glazes as it sometimes shows up through them if the pot is too thin, or if I've dripped it on the outside of the pot and wiped it off before glazing the outside. For pots with light colored glazes on the outside, I use a shiny white liner.
Recipe: (Percent, Batch)
Potash feldspar 32.7 34.00 Whiting 15.4 16.00 Silica 32.7 34.00 EPK 19.2 20.00 ----- -------- Totals: 100.0 104.00
Also add:
Iron oxide 5.8 6.00 Copper carbonate 4.8 5.00
Comments:
Recipe: (Percent, Batch)
Potash feldspar 57.1 57.14 Whiting 15.4 15.38 Kaolin 6.6 6.59 Silica 20.9 20.88 ----- -------- Totals: 100.0 99.99
Also add:
Red iron oxide 9.9 9.89
Comments:
This glaze fires to a deep black breaking to red on rims at cone 10. The following ar two Tenmoku's that I have used with continued success. David Stuchbery School of Art & Design Ph (054) 447-279 La Trobe University, Bendigo d.stuchbery@bendigo.latrobe.edu.au
Recipe: (Percent, Batch)
Custer feldspar 20.0 20.00 Kona F-4 feldspar 20.0 20.00 Flint 20.0 20.00 Dolomite 15.0 15.00 Talc 13.0 13.00 Kentucky OM #4 10.0 10.00 Whiting 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 3.0 3.00 Cobalt oxide 3.0 3.00 Manganese dioxide 2.0 2.00 Green chrome oxide 1.0 1.00
Comments:
From Peter Beasecker
Recipe: (Percent, Batch)
Albany slip 65.0 65.00 Nepheline syenite 15.0 15.00 Barium carbonate 10.0 10.00 Talc theoretical 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 1.0 1.00 Red iron oxide 2.0 2.00 Manganese dioxide 2.0 2.00 Cobalt carbonate 2.0 2.00
Comments:
Similar to V.C. Black A & B. Needs Cone 9.5 to 10 for best satin smooth results.To replace Albany, see VCSDB Rev.
Recipe: (Percent, Batch)
Redart 40.0 40.00 Nepheline syenite 15.0 15.00 Barium carbonate 10.0 10.00 Talc theoretical 15.0 15.00 Whiting 10.0 10.00 Flint 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 1.0 1.00 Red iron oxide 2.0 2.00 Manganese dioxide 2.0 2.00 Cobalt carbonate 2.0 2.00
Comments:
Revised to replace Albany Slip. Needs Cone 9.5 to 10 for best satin smooth results.
Recipe: (Percent, Batch)
Custer feldspar 51.4 51.40 Dolomite 17.1 17.10 Whiting 2.9 2.90 EPK 28.6 28.60 ----- -------- Totals: 100.0 100.00
Also add:
Manganese dioxide 2.0 2.00 Cobalt carbonate 3.0 3.00 Chrome oxide 1.0 1.00 Red iron oxide 4.0 4.00 Bentonite 2.0 2.00
Comments:
From Erin Hayes via ClayArt. Formulated by Tony Holmes. The glaze is a lovely pitch-black satin. One of those textures you want to pick up and fondle. Apply a little on the heavy side.
Recipe: (Percent, Batch)
Custer spar 30.0 30.00 Hardwood ash 30.0 30.00 Flint 30.0 30.00 Ball clay 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Ultrox 15.0 15.00
Comments:
Beautiful cream white. It is not pure white due to the impurities contained in the wood ash even if the amount of Ultrox is very high. The harwood ash was washed 5 times and 60 mesh-sieved. The glaze base is the same as Bass Bleu. . *How long have you been using this glaze? One year *Where is it used? Studio *Where did this recipe come from? My own experimentation *What do you like most about this glaze? The color that is original. *Is this glaze reliable? Yes *Does this glaze tend to craze/crawl/pinhole/etc.? No surface flaws *How does the glaze behave on different clay bodies? Well *What consistency should the glaze be for pouring/dipping? Medium *How thickly should the glaze be applied to the pot? Medium *How does this glaze interact with other glazes? Not tested *What is your kiln type and size? Downdraft. propane, atmospheric and 60 cubic feet *How do you typically fire? Oxidation until clay reduction at c/08,then light reduction increasing with time until the final total reduction followed by a period of reoxidation *Do you experience problems with the raw glaze? No *What is your water pH? 7.2 *GlazeBase recipe* Submitted by: Edouard Bastarache (edouarb@sorel-tracy.qc.ca) Ice Cream Flavor: Plain vanilla -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
Custer spar 36.0 36.00 Spodumene 14.0 14.00 Whiting 25.0 25.00 Colemanite 5.0 5.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 5.0 5.00
Comments:
Reliable satin white *How long have you been using this glaze? 20 years *Where is it used? Studio *Where did this recipe come from? Michel Lemire M.F.A.,Trois-Rivières, Quebec. *What do you like most about this glaze? Its reliability, color and satin surface *Is this glaze reliable? Yes *Does this glaze tend to craze/crawl/pinhole/etc.? It has no surface defects *How do different firing temperatures/atmospheres affect the glaze? Not tested *How does the glaze behave on different clay bodies? Well *What consistency should the glaze be for pouring/dipping? Medium *How thickly should the glaze be applied to the pot? Medium *How does this glaze interact with other glazes? Well *What is your kiln type and size? Downdraft, propane atmospheric and 60 cubic feet *How do you typically fire? Oxidation until clay reduction at cone 08, then light reduction increasing with time until the final total reduction followed by a period of reoxidation *Do you experience problems with the raw glaze? No *What is your water pH? 7.2 *GlazeBase recipe* Submitted by: Edouard Bastarache (edouardb@sorel-tracy.qc.ca) Ice Cream Flavor: Always vanilla -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
Custer spar 62.5 62.50 Ball clay 5.7 5.68 Spodumene 9.1 9.09 Whiting 17.0 17.04 Zinc oxide 5.7 5.68 ----- -------- Totals: 100.0 99.99
Also add:
Zircopax 12.0 12.00
Comments:
Beautiful white gloss *How long have you been using this glaze? 28 years *Where is it used? Studio *Where did this recipe come from? Julien Cloutier, my first teacher of ceramics, Quebec City *What do you like most about this glaze? Reliable white gloss that accepts glaze trailing with contrasting colored glazes very well. *Is this glaze reliable? Yes *Does this glaze tend to craze/crawl/pinhole/etc.? It has no surface defects *How do different firing temperatures/atmospheres affect the glaze? Not tested *How does the glaze behave on different clay bodies? Well *What consistency should the glaze be for pouring/dipping? Medium *How thickly should the glaze be applied to the pot? Medium *What is your kiln type and size? Downdraft, propane, 60 cubic feet *How do you typically fire? Oxidation until clay reduction at cone/08, then light reduction increasing with time until the total final reduction, followed by a period of reoxidation *Do you experience problems with the raw glaze? No *What is your water pH? 7.2 *GlazeBase recipe* Submitted by: Edouard Bastarache (edouardb@sorel-tracy.qc.ca) Ice Cream Flavor: Still vanilla -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
Flint 32.7 32.65 Whiting 19.4 19.39 G-200 feldspar 27.6 27.55 Kentucky OM #4 20.4 20.41 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 2.0 2.04
Comments:
from Ellen Baker Rich glossy deep blue. no crazing (although it's hard to tell with such a deep blue) Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Alberta slip 64.0 64.00 Whiting 20.0 20.00 EPK 16.0 16.00 ----- -------- Totals: 100.0 100.00
Comments:
Froom Sam Chung.
Recipe: (Percent, Batch)
Custer spar 30.0 30.00 Hardwood ash 30.0 30.00 Flint 30.0 30.00 Ball clay 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Ultrox 15.0 15.00 Cobalt oxide 5.0 5.00
Comments:
Ash washed 5 times and 60-mesh sieved Beautiful deep blue ash glaze *How long have you been using this glaze? 1 year *Where is it used? Studio *Where did this recipe come from? From my own experimentation *What do you like most about this glaze? Its deep blue shiny color *Is this glaze reliable? Yes *Does this glaze tend to craze/crawl/pinhole/etc.? If applied too thick it may pinhole a little bit *How do different firing temperatures/atmospheres affect the glaze? It is always fired at cone 8-10 in reduction *How does the glaze behave on different clay bodies? Well *What consistency should the glaze be for pouring/dipping? Medium consistency *How thickly should the glaze be applied to the pot? Medium coat *How does this glaze interact with other glazes? Not tested *What is your kiln type and size? Downdraft propane and 60 cubic feet *How do you typically fire? Clay reduction at cone/08, then slight reduction increasing with time until the final total reduction, followed by a period of reoxidation *Do you experience problems with the raw glaze? No *What is your water pH? 7.2 *Any other comments? Glaze named by my colleagues as "Bass Bleu" - Bass having been my nickname since my teen years, Bass is also the name that I use to sign my pots. *GlazeBase recipe* Submitted by: Edouard Bastarache (edouardb@sorel-tracy.qc.ca) Ice Cream Flavor: Vanilla -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
Custer spar 40.8 38.50 Whiting 17.0 16.00 Strontium carbonate 5.3 5.00 EPK 20.9 19.70 Flint 16.0 15.10 ----- -------- Totals: 100.0 94.30
Also add:
Rutile 4.8 4.50 Cobalt carbonate 2.5 2.40
Comments:
It is a variation of James Chappell's SG-187 (copyright 1977). Titanium dioxide is replaced by Rutile for darker more richly textured glaze. *What consistency should the glaze be for pouring/dipping? Medium. Even applied very thick it does not run. *How thickly should the glaze be applied to the pot? Medium to thick.
Recipe: (Percent, Batch)
G-200 feldspar 43.7 43.72 EPK 1.9 1.87 Flint 28.2 28.25 Whiting 2.7 2.70 Gerstley borate 9.1 9.14 Dolomite 9.1 9.14 Zinc oxide 1.8 1.77 Strontium carbonate 3.4 3.43 ----- -------- Totals: 100.0 100.02
Also add:
Tin oxide 2.7 2.70 Rutile 4.1 4.15 Copper carbonate 0.5 0.52 Bentonite 3.1 3.12
Comments:
Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Soda feldspar 50.0 50.00 EPK 20.0 20.00 Magnesium carbonate 10.0 10.00 Whiting 10.0 10.00 Flint 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 2.0 2.00 Manganese dioxide 1.0 1.00
Comments:
Satin deep blue going to tan where thick. Buttery Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Custer feldspar 50.9 50.90 Talc theoretical 3.8 3.80 EPK 24.0 24.00 Whiting 21.3 21.30 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 0.2 0.20 Red iron oxide 1.7 1.70 Bentonite 1.9 1.90
Comments:
From Doug Casebeer, used at Curaumilla. In soda, more fluxed w/soda. Muted blue-green.
Recipe: (Percent, Batch)
Custer feldspar 38.0 38.00 Dolomite 17.0 17.00 Whiting 6.0 6.00 EPK 22.0 22.00 Silica 17.0 17.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Rutile (powdered) 2.0 2.00 Rutile (granular) 1.0 1.00
Comments:
I have used the same blue semimat glaze (surface rutile crystals), cone 9 electric, for 20 years. I use it on EVERYTHING. This glaze will go shiney if over fired. Cindy Aldrich Durham, NC aldric3@IBM>NET
Recipe: (Percent, Batch)
Soda feldspar 57.1 57.10 EPK 14.3 14.30 Kentucky OM #4 7.2 7.20 Whiting 21.4 21.40 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 7.2 7.20
Comments:
Matt glaze almost black where thin, army green where thick. Nice colonial (bluish slate) over white slip. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Cornwall Stone 20.4 20.40 Kona F-4 26.5 26.50 Whiting 9.2 9.20 Dolomite 10.2 10.20 Talc 6.1 6.10 EPK 4.1 4.10 Calcined kaolin 15.3 15.30 Flint 8.2 8.20 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Cobalt carbonate 0.5 0.50
Comments:
Recipe: (Percent, Batch)
G-200 feldspar 43.7 43.70 EPK 1.9 1.90 Flint 28.3 28.30 Whiting 2.7 2.70 Gerstley borate 9.1 9.10 Dolomite 9.1 9.10 Zinc oxide 1.8 1.80 Strontium carbonate 3.4 3.40 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 2.7 2.70 Rutile 4.2 4.20 Copper carbonate 0.5 0.50 Bentonite 3.1 3.10
Comments:
Heavy texture glossy glaze. Lavender to blue over white slip. Nice rutile blue where thick breaking to brown. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Custer feldspar 50.0 50.00 Barium carbonate 14.0 14.00 Whiting 7.0 7.00 Grolleg Kaolin 5.0 5.00 Silica 24.0 24.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.0 2.00
Comments:
Spanish red iron oxide is prefered. I have found that my blue celadon glaze, which is very similar to others given to you, likes all the reduction I can give it. I fire blue celadon pieces in the same firings I go for carbon trapping with my shinos. The extra reduction along with a good thick application of the blue celadon glaze, I think, encourages the bubbles trapped in the glaze which gives it a nice softness to the glossy glaze. I introduce a heavy reduction at cone 010 through to cone 06 then lighten up a bit for the rest of the firing. Also, drips melt out and do not show. Despite the only average amount of clay in the glaze, but high amount of feldspar and flint, the glaze does not run at all at cone 10 EPK helps and use Spanish Red Iron oxide and do not get any speckling. I feel the blue celadon glaze is much nicer on porcelain. You may need to add a suspender, I don't though. I have substituted Strontium Carbonate for half of the Barium and all of the Barium at 1 part Barium to 3/4 parts Strontium and received just as nice results. I have the understanding from talking with other colleagues that the glaze should be safe from Barium poisoning because it is a glossy glaze where enough silica molecules have combined with the Barium molecules to make it stable. But, I have never had it tested. Does anyone know if this is true or not? Please reply. Enjoy, Cone 10 down, submitted by: Steve Loucks e-mail: STEVLOUCKS@aol.com
Recipe: (Percent, Batch)
Potash feldspar 54.8 54.80 Whiting 13.7 13.70 Bone ash 1.4 1.40 Barium carbonate 2.7 2.70 Silica 27.4 27.40 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 1.1 1.10
Comments:
This glaze has to be fired as you would fire a copper red glaze otherwise you will not get the beautiful colour and texture. If the glaze is clear then you are not applying it thick enough. Also, I guess I should mention that it should be fired to cone 9-10. Hopefully it works for you as it has for me. Happy testing! submitted by: Craig Pearce e-mail: i931009@redgum.ucnv.edu.au
Recipe: (Percent, Batch)
Flint 31.0 31.00 Whiting 20.0 20.00 G-200 feldspar 33.0 33.00 EPK 14.0 14.00 Spodumene 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 7.0 7.00
Comments:
from Ellen Baker Very deep dark glossy blue All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Cornwall Stone 63.8 63.81 Gerstley borate 14.3 14.30 Silica (A-25 best) 7.6 7.60 Whiting 7.6 7.60 EPK 4.8 4.80 Zinc oxide 1.9 1.90 ----- -------- Totals: 100.0 100.01
Also add:
Cobalt carbonate 0.5 0.50 Rutile (powdered) 3.2 3.20 Ilmenite (325 mesh best) 2.0 2.00
Comments:
(Mile Hi in Denver has Ilmenite). Likes a fast cooling to develop that electric blue. One dip gives you brown, two dips a deep blue. Tends to break on ridges. Where real heavy you get white. Flows quite a bit, especially combined with other glazes. Watch your bottom feet,try to give it a good foot or a strong ridge to stop flow. Tapering the bottom edge with a straight edge helps too. Otherwise your shelf will be a beautiful shade of blue. If thick, tends to pinhole, likes to dry and be rubbed out before firing. Tempermental glaze---can crawl just enough to make you crazy generally under rims and on the inside of rims....probably is thicker there and shrinks when drying. To Mix, we've found it best to dissolve the Cornwall first and let set a bit, then add everything else. Screen through a 40 once and an 80mesh twice for finest crystalization. This is a compilation of several background messages re: the Conrad Moonlight. We use Conrads Moonlight (which was discussed about 6 months ago here) with about 1/2%cobalt Carb. added. It's a cone 10 glaze. I first started using it in electric firing, and a year ago switched to gas. At first in the gas, it was muddier and tended toward rutile blue-green. Then, experimenting, we cooled the kiln faster to match the curve of the electrics. Voila, nice sharp crystals and blue. It also seems to be quite sensitive to temperature, over fire it and it grabs iron from anywhere and goes blue green or brownish. I also might note that it is quite sensitive to application. It must go on thick to develop a good blue. (even sometimes giving almost purple). Thick in the bucket, double dip as soon as the sheen leaves, dry completely, then rub lightly everywhere and especially on compund curves. This is a Cornwall recipe and tends to crawl if not thorughly bonded to the clay surface. The thickness required doesn't help. Don't know what it might do at c6 but if you can get it there, the above notes might help. One note, I mentioned that it's sensitive to temp. It's happiest between 9-1/2 and 10-1/2. Also we use it on a white stoneware. On iron body clays, it tends toward blue green or brown-green...not too pretty. Joyce brought up a good pointThe rutile blue Moonlight from Conrad (G375) is r understand, most rutile blues are. The way we work around this is to provide a ridge at the foot and, when Betsy applies the glaze, she takes a stainless rib and carves a taper into the ridge. Sounds time consuming, and is, but it goes pretty fast after you've done (not had) a few. The main time we lose pieces from running now is where there's an overlap with another glaze, especially Temmoku. But by keeping it high on the pot, it can be controlled. Good Luck. It can be a fantastic rutile blue, best I've seen. I'll be off the list for a week, at Rosen, but will pull digests during the week. Tom Wirt Clay Coyote Pottery Hutchinson, MN claypot@hutchtel.net
Recipe: (Percent, Batch)
Nepheline syenite 28.0 28.00 Dolomite 12.0 12.00 Whiting 7.0 7.00 Barium carbonate 6.0 6.00 Lithium carbonate 1.0 1.00 EPK 10.0 10.00 Silica 36.0 36.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.0 3.00 Copper carbonate 2.0 2.00 Cobalt carbonate 0.3 0.25
Comments:
The color is a cool grey-blue that pools darker, especially in carved areas. Kat Neely-Jones e-mail: SolvejgMa@aol.com
Recipe: (Percent, Batch)
G-200 feldspar 44.9 43.70 EPK 2.0 1.90 Flint 29.1 28.30 Gerstley borate 9.4 9.10 Dolomite 9.4 9.10 Zinc oxide 1.8 1.80 Strontium carbonate 3.5 3.40 ----- -------- Totals: 100.0 97.30
Also add:
Tin oxide 2.8 2.70 Rutile 6.9 6.70 Copper carbonate 1.5 1.50 Bentonite 2.1 2.00
Comments:
Sort of denim-colored with creamy mottling. Copper red develops where it contacts clear or celadon. Stable.Breaks over texture.
Recipe: (Percent, Batch)
Kona F-4 feldspar 44.0 44.00 Silica 28.0 28.00 Whiting 18.0 18.00 Kaolin 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Red iron oxide 1.0 1.00
Comments:
Here is a recipe for a reliable glossy dark blue. I have fired it in gas and wood and it works well either way. submitted by: Debbie Vacchi e-mail: DebbieArt@aol.com
Recipe: (Percent, Batch)
Kona F-4 feldspar 40.3 40.30 Flint 21.5 21.50 Whiting 14.1 14.10 Ball clay 3.4 3.40 Cornwall Stone 20.7 20.70 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 2.5 2.50 Copper carbonate 4.0 4.00
Comments:
Corinne Null Bedford, NH cnull@mv.mv.com
Recipe: (Percent, Batch)
G-200 feldspar 43.2 43.20 Whiting 12.0 12.00 EPK 6.9 6.90 Strontium carbonate 12.0 12.00 Flint 25.9 25.90 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 0.4 0.40 Rutile 4.4 4.40 Iron oxide 4.4 4.40
Comments:
from Bob Santerre glossy black brown. Almost looks like temoku but very deep blue where it pools. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Custer feldspar 33.3 33.30 Gerstley borate 17.7 17.70 OM-4 Ball Clay 15.6 15.60 Talc 13.5 13.50 Silica 13.5 13.50 Dolomite 6.3 6.30 ----- -------- Totals: 100.0 99.90
Also add:
Zircopax 4.2 4.20 Cobalt carbonate 3.1 3.10
Comments:
submitted by: Rick Malmgren e-mail: r-malmgren@sjcaedu
Recipe: (Percent, Batch)
G-200 feldspar 33.3 33.30 Whiting 25.0 25.00 Kentucky OM #4 12.5 12.50 Flint 25.0 25.00 Zinc oxide 4.2 4.20 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 5.0 5.00 Chrome oxide 2.5 2.50
Comments:
from Don Satin smooth gloss. Deep teal (thick) to black(thin) Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
G-200 feldspar 33.3 33.30 Whiting 25.0 25.00 Kentucky OM #4 12.5 12.50 Flint 25.0 25.00 Zinc oxide 4.2 4.20 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 5.0 5.00 Chrome oxide 2.5 2.50
Comments:
from Don Satin smooth gloss. Deep teal (thick) to black(thin) All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Whiting 23.3 23.30 G-200 feldspar 27.2 27.20 EPK 19.2 19.20 Flint 27.3 27.30 Zinc oxide 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 0.3 0.30 Cobalt carbonate 1.4 1.40
Comments:
Deep teal over stoneware deep blue with slip. Satin to almost gloss glaze Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Whiting 23.3 23.30 G-200 feldspar 27.2 27.20 EPK 19.2 19.20 Flint 27.3 27.30 Zinc oxide 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 0.3 0.30 Cobalt carbonate 1.4 1.40
Comments:
Deep teal over stoneware deep blue with slip. Satin to almost gloss glaze Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
G-200 feldspar 41.2 41.20 Whiting 21.4 21.40 EPK 21.4 21.40 Flint 16.1 16.10 ----- -------- Totals: 100.0 100.10
Also add:
Cobalt carbonate 1.1 1.10 Rutile (light) 6.4 6.40
Comments:
This is a Blue to Green Satin mat that has alot of nice qualities you might enjoy. Thin its green and when doubledipped its soft light blue . It also takes other oxides well, is food safe and stays in suspension. Good Luck, Mike Vatalaro in Clemson vatalam@clemson.edu
Recipe: (Percent, Batch)
Whiting 19.6 19.60 Flint 32.9 32.90 EPK 20.0 20.00 G-200 feldspar 27.5 27.50 ----- -------- Totals: 100.0 100.00
Also add:
Yellow ochre 2.0 2.00
Comments:
also from Alfred Looks like a pretty typical celedon to me.. glossy with no crazing All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. tracy wilsonTracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
K-200 feldspar 44.0 44.00 Wollastonite 20.0 20.00 Dolomite 4.0 4.00 Grolleg 12.0 12.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 5.0 5.00
Comments:
This glaze was revised by VC. The theory here is that wollastonite is closer to the Ca source that the Chinese used (calcined chells for CaO plus high K2O) - no carbonates in wollastonite.
Recipe: (Percent, Batch)
Whiting 19.5 19.49 Custer feldspar 63.6 63.55 EPK 17.0 16.96 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 0.9 0.85 Rutile 4.0 4.00
Comments:
submitted by: Brian Voth e-mail: bvoth@southwind.net
Recipe: (Percent, Batch)
G-200 feldspar 57.9 57.89 Whiting 23.2 23.16 Gerstley borate 4.2 4.21 Flint 14.7 14.74 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 3.2 3.16 Cobalt carbonate 1.1 1.05 Manganese dioxide 0.5 0.53
Comments:
handed over by Bob Santerre Glossy medium blue where thick and glossy slate blue where thin. Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
G-200 feldspar 57.9 57.89 Whiting 23.2 23.16 Gerstley borate 4.2 4.21 Flint 14.7 14.74 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 3.2 3.16 Cobalt carbonate 1.1 1.05 Manganese dioxide 0.5 0.53
Comments:
handed over by Bob Santerre Glossy medium blue where thick and glossy slate blue where thin. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Custer feldspar 25.0 25.00 Whiting 25.0 25.00 Flint 25.0 25.00 Ball clay 25.0 25.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt oxide 0.3 0.25 Red iron oxide 1.0 1.00
Comments:
Nice blue toward inky. From Janice Strawder
Recipe: (Percent, Batch)
Kaolin 9.5 9.50 Whiting 19.0 19.00 Silica 28.6 28.60 Feldspar 38.1 38.10 Barium carbonate 4.8 4.80 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 4.8 4.80 Copper carbonate 1.6 1.60 Cobalt carbonate 1.9 1.90 Bentonite 2.0 2.00
Comments:
Semi-gloss. Looks good thick,may run where thick.
Recipe: (Percent, Batch)
Flint 41.6 40.40 Soda spar 20.8 20.20 Cryolite 15.7 15.20 Lithium carbonate 10.4 10.10 Bone ash 8.4 8.10 Kaolin 3.1 3.00 ----- -------- Totals: 100.0 97.00
Also add:
Copper oxide 3.1 3.00
Comments:
In reduction color is blue turq w/copper luster.
Recipe: (Percent, Batch)
Whiting 19.5 19.50 Custer feldspar 63.5 63.60 EPK 17.0 17.00 ----- -------- Totals: 100.0 100.10
Also add:
Cobalt carbonate 0.9 0.90 Rutile 4.0 4.00
Comments:
sufrace: matte . If you want a soft matt blue, try the Long Beach Blue. The Long Beach is terrible if applied too thin. Good luck. Chris Fennimore Boulder, CO christine fennimore
Recipe: (Percent, Batch)
Feldspar 53.8 53.80 Whiting 24.8 24.80 Kentucky OM #4 21.4 21.40 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 0.7 0.70
Comments:
from Gould Matt glaze. Colonial blue breaking to soft green where thick. Bland brown where thin. Doesn't break to green over the white slip.
Recipe: (Percent, Batch)
Flint 31.0 31.00 Whiting 20.0 20.00 G-200 feldspar 33.0 33.00 EPK 14.0 14.00 Spodumene 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 7.0 7.00
Comments:
from Ellen Baker Very deep dark glossy blue All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Flint 4.4 4.36 EPK 7.6 7.63 Nepheline syenite 65.4 65.39 Strontium carbonate 20.4 20.44 Lithium carbonate 2.2 2.18 ----- -------- Totals: 100.0 100.00
Also add:
Copper oxide 1.6 1.64 Bentonite 2.2 2.18
Comments:
from Ellen Baker similar to Copper blue (#1) Turquoise stony matt. Goes to lavender over slip Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
G-200 feldspar 29.7 29.70 Dolomite 5.0 4.95 Whiting 15.8 15.84 EPK 12.9 12.87 Flint 36.6 36.63 ----- -------- Totals: 100.0 99.99
Also add:
Bentonite 2.0 1.98 Red iron oxide 0.5 0.50 Cobalt carbonate 0.5 0.50 Rutile 1.0 0.99
Comments:
Glossy slate blue. Looks good over slip. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Custer feldspar 37.5 39.00 Barium carbonate 38.5 40.00 Zinc oxide 14.4 15.00 EPK 4.8 5.00 Flint 4.8 5.00 ----- -------- Totals: 100.0 104.00
Also add:
Black nickel oxide 1.4 1.50
Comments:
From Ayumi Horie. Beautiful bright violet matt. NOT for food. Test w/.75 strontium in place of barium.
Recipe: (Percent, Batch)
Nepheline syenite 35.6 35.60 Dolomite 17.1 17.10 Zinc oxide 2.5 2.50 Whiting 3.1 3.10 Kaolin 5.9 5.90 Flint 35.8 35.80 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 5.0 5.00
Comments:
Here's a glaze you could try called Opal Blue, it's more medium blue with a lighter blue on top. It was one of my favorites when I had access to a gas kiln....sigh.... It is very pretty. from anne chambers
Recipe: (Percent, Batch)
Talc 22.2 10.00 Redart 33.3 15.00 Kaolin 44.4 20.00 ----- -------- Totals: 100.0 45.00
Also add:
Cobalt carbonate 44.4 20.00 Tin oxide 44.4 20.00 Manganese dioxide 22.2 10.00 Red iron oxide 11.1 5.00
Comments:
From ClayArt from Michael Cardew's "Pioneer Pottery". This is not a glaze. It is a pigment for painting over a glaze. It would be dry and unmelted if used as a glaze. I use it at cone 10, but I imagine it would be good to use at cone 6, and probably even a few cones lower. The glaze it is painted over, of course, determines how it turns out to a great degree. David Hendley david@farmpots.com http://www.farmpots.com
Recipe: (Percent, Batch)
G-200 feldspar 44.6 44.57 Flint 19.1 19.05 EPK 2.4 2.38 Whiting 11.4 11.43 Gerstley borate 13.1 13.05 Zinc oxide 3.8 3.81 Dolomite 5.7 5.71 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 2.9 2.86 Copper oxide 0.5 0.48 Rutile 0.5 0.48 Cobalt carbonate 1.0 0.95
Comments:
Very glossy kind of milky dark blue. Interesting over white slip All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Nepheline syenite 48.2 48.20 Barium carbonate 37.3 37.30 Ball clay 7.0 7.00 Silica 7.5 7.50 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 2.0 2.00 Rutile 5.0 5.00
Comments:
submitted by: Eleanora Eden e-mail: eden@maple.sover.net or eden@sover.net NOT for food use - high barium. Try subst strontium.
Recipe: (Percent, Batch)
G-200 feldspar 34.0 34.00 Gerstley borate 12.0 12.00 Whiting 7.0 7.00 EPK 9.0 9.00 Talc 19.0 19.00 Flint 19.0 19.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt oxide 0.3 0.30 Chrome oxide 0.5 0.50
Comments:
Light blue where thick hint of teal. Satin glaze. Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
K-200 feldspar 44.0 44.00 EPK 10.0 10.00 Whiting 18.0 18.00 Flint 28.0 28.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 0.5 0.50
Comments:
From Kelli Cohen @ Univ. of FL
Recipe: (Percent, Batch)
G-200 feldspar 71.4 71.40 Silica 14.3 14.30 Whiting 14.3 14.30 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.0 2.00 Rutile 3.1 3.10 Cobalt carbonate 0.5 0.50 Bentonite 3.1 3.10
Comments:
It is shiny and breaks brown to blue My students keep it rather thick in the bucket for the desired blue and it doesn't seem to run very much at all. It is a blue glaze but a nice blue glaze and it works well with a lot of other glazes. submitted by: Jim Connell e-mail: connellj@winthrop.edu
Recipe: (Percent, Batch)
K-200 spar 68.0 68.00 Whiting 16.0 16.00 Flint 16.0 16.00 ----- -------- Totals: 100.0 100.00
Also add:
Iron oxide 2.0 2.00 Rutile 3.0 3.00 Bentonite 3.0 3.00
Comments:
Rust color where thin, rich blue where thick. Custer spar can be subbed for K-200. Glaze Type: Ca K RutileBlue. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer feldspar 39.0 39.00 Gerstley borate 2.0 2.00 Dolomite 21.0 21.00 Whiting 2.0 2.00 EPK 25.0 25.00 Flint 11.0 11.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Chrome oxide 0.3 0.25 Manganese dioxide 0.5 0.50
Comments:
Original glaze is temperature finicky & goes glossy at C/10. Rev. stays matt. Thin=grey blue; med=deep rich blue; thick=brighter blue. Glaze Type CaMgAl Matt. Opacity:opaque. Firing type: redtn. From Val Cushing. VC ed
Recipe: (Percent, Batch)
Zinc oxide 8.0 7.60 Custer feldspar 53.7 51.00 Whiting 9.3 8.80 Strontium carbonate 16.3 15.50 Ball clay 10.3 9.80 Bone ash 2.3 2.20 ----- -------- Totals: 100.0 94.90
Also add:
Rutile 9.2 8.70 Cobalt carbonate 1.1 1.00 Bentonite 2.1 2.00
Comments:
Nice satin glaze that is a medium blue with olive spots.
Recipe: (Percent, Batch)
Custer spar 40.8 40.83 Whiting 17.0 16.97 Strontium carbonate 5.3 5.30 EPK 20.9 20.89 Silica 16.0 16.01 ----- -------- Totals: 100.0 100.00
Also add:
Titanium dioxide 4.8 4.77 Cobalt carbonate 1.9 1.91 Bentonite 1.1 1.06
Comments:
Non- toxic version of barium matt blue. Stable, strong color. I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
Potash feldspar 32.2 32.20 Whiting 20.5 20.50 Flint 19.5 19.50 EPK 16.6 16.60 Talc 11.2 11.20 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 8.3 8.30
Comments:
Below is a glaze I have been using for years, I got it out of CM. Likes a thick dip and I also double dip rims. Does not like a long soak at cone 10. Looks best at a good cone 9 (slightly satin with shiny spots) or 10 ( glossy blue with mottling and crystals) Good Luck! Barbara Murphy, Waterloo, Ontario dave murphy
Recipe: (Percent, Batch)
Potash feldspar 32.2 32.20 Whiting 20.5 20.50 Flint 19.5 19.50 EPK 16.6 16.60 Talc theoretical 11.2 11.20 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 8.3 8.30
Comments:
Mottled pink/purple to pearly blues in reduction. More pink/purple in oxidation. Breaks over texture.Tested in 3784.
Recipe: (Percent, Batch)
Custer feldspar 42.5 43.00 Whiting 21.7 22.00 EPK 10.9 11.00 Flint 21.7 22.00 Zinc oxide 3.2 3.20 ----- -------- Totals: 100.0 101.20
Also add:
Rutile 6.4 6.50 Bentonite 1.0 1.00
Comments:
Mottled pink-blue-purple that varies with thickness in reduction. In oxidation, pale yellow. Tested by Jillian Parra.
Recipe: (Percent, Batch)
G-200 feldspar 36.0 36.00 EPK 22.0 22.00 Dolomite 18.0 18.00 Flint 16.0 16.00 Gillespie borate 4.0 4.00 Whiting 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt oxide 0.5 0.50 Chrome oxide 0.2 0.15 Manganese dioxide 0.3 0.25
Comments:
Recipe: (Percent, Batch)
Feldspar 54.0 54.00 EPK 5.0 5.00 Kentucky OM #4 25.0 25.00 Whiting 8.0 8.00 Talc theoretical 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00
Comments:
From Clay Times May/Jn '08
Recipe: (Percent, Batch)
G-200 feldspar 30.9 30.94 Flint 26.8 26.84 Whiting 19.1 19.11 Kentucky OM #4 12.8 12.80 EPK 10.3 10.31 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.2 1.22
Comments:
also from Bob Santerre Medium royal blue with or without slip. glossy. Breaking to green where thin. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
G-200 feldspar 21.0 21.00 Nepheline syenite 21.0 21.00 Kentucky OM #4 4.5 4.50 Gerstley borate 11.8 11.80 Dolomite 7.5 7.50 Talc theoretical 14.4 14.40 Silica 19.6 19.60 ----- -------- Totals: 100.0 99.80
Also add:
Cobalt oxide 3.0 3.00
Comments:
Satin glaze. Deep purple where thick. Midnight blue where medium. soft purple with slip. Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
G-200 feldspar 21.0 21.00 Nepheline syenite 21.0 21.00 Kentucky OM #4 4.5 4.50 Gerstley borate 11.8 11.80 Dolomite 7.5 7.50 Talc 14.4 14.40 Silica 19.6 19.60 ----- -------- Totals: 100.0 99.80
Also add:
Cobalt oxide 3.0 3.00
Comments:
Satin glaze. Deep purple where thick. Midnight blue where medium. soft purple with slip. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Custer feldspar 40.8 40.80 Flint 16.0 16.00 Whiting 17.0 17.00 Strontium carbonate 5.3 5.30 EPK 20.9 20.90 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 2.7 2.70 Rutile 4.8 4.80
Comments:
Recipe: (Percent, Batch)
Potash feldspar 42.8 42.80 Flint 26.6 26.60 Whiting 22.1 22.10 EPK 8.5 8.50 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Titanium dioxide 3.0 3.00 Black nickel oxide 1.0 1.00
Comments:
Corinne Null Bedford, NH cnull@mv.mv.com
Recipe: (Percent, Batch)
Potash feldspar 42.8 42.80 Flint 26.6 26.60 Whiting 22.1 22.10 EPK 8.5 8.50 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Titanium dioxide 3.0 3.00 Black nickel oxide 1.0 1.00
Comments:
Corinne Null Bedford, NH cnull@mv.mv.com
Recipe: (Percent, Batch)
Whiting 19.0 19.03 Flint 31.9 31.94 EPK 19.4 19.42 G-200 feldspar 26.7 26.70 Barnard slip 2.9 2.91 ----- -------- Totals: 100.0 100.00
Comments:
from Alfred/ Jim Chalkley Couldn't detect any light blue but I remember it used to be beautiful on carved porcelain. (Jim, are you out there?) All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . tracy wilsonTracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Cornwall Stone 46.0 46.00 Whiting 34.0 34.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 2.0 2.00
Comments:
Webs and streaks nicely.VC ed
Recipe: (Percent, Batch)
Custer spar 36.0 36.00 Gerstley borate 4.0 4.00 Dolomite 18.0 18.00 Whiting 4.0 4.00 EPK 22.0 22.00 Flint 16.0 16.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Chrome oxide 0.3 0.25 Manganese dioxide 0.5 0.50
Comments:
Thin=dk. greyblue; med=deep rich blue; thick=brighter blue,not as good. At Cone 9.5 goes glossy and raw-ugly blue. See RMB Rev. for c/10. Glaze Type: Ca Mg AlMatt. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed.
Recipe: (Percent, Batch)
G-200 feldspar 39.0 39.00 Gerstley borate 2.0 2.00 Dolomite 21.0 21.00 Whiting 2.0 2.00 EPK 25.0 25.00 Flint 11.0 11.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Chrome oxide 0.3 0.25 Manganese dioxide 0.5 0.50
Comments:
Dark brown on stoneware. Slate blue over white slip. Satin Matt
Recipe: (Percent, Batch)
G-200 feldspar 39.0 39.00 Gerstley borate 2.0 2.00 Dolomite 21.0 21.00 Whiting 2.0 2.00 EPK 25.0 25.00 Flint 11.0 11.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Chrome oxide 0.3 0.25 Manganese dioxide 0.5 0.50
Comments:
Dark brown on stoneware. Slate blue over white slip.
Recipe: (Percent, Batch)
G-200 feldspar 39.0 39.00 Gerstley borate 2.0 2.00 Dolomite 21.0 21.00 Whiting 2.0 2.00 EPK 25.0 25.00 Flint 11.0 11.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Chrome oxide 0.3 0.25 Manganese dioxide 0.5 0.50
Comments:
Dark brown on stoneware. Slate blue over white slip. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Custer spar 38.9 38.90 Ball clay 18.9 18.90 Whiting 13.3 13.30 Flint 21.1 21.10 Dolomite 7.8 7.80 ----- -------- Totals: 100.0 100.00
Also add:
Iron chromate 2.2 2.20 Cobalt carbonate 0.6 0.60
Comments:
This is a nice dark blue glaze that dosen't run it is some what shinney. I hope that all these help you and whom ever else might need them. Jennifer Alpine, TX jennifer rhinesmith
Recipe: (Percent, Batch)
G-200 feldspar 39.0 39.00 Dolomite 7.0 7.00 Gerstley borate 12.0 12.00 Talc theoretical 15.0 15.00 EPK 4.0 4.00 Flint 23.0 23.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 4.0 4.00 Cobalt carbonate 0.5 0.50
Comments:
from Bonnie Terry. Satin glaze. solid brown where thin to medium. Mottled breaking blues browns and gold. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
G-200 feldspar 39.0 39.00 Dolomite 7.0 7.00 Gerstley borate 12.0 12.00 Talc theoretical 15.0 15.00 EPK 4.0 4.00 Flint 23.0 23.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 4.0 4.00 Cobalt carbonate 0.5 0.50
Comments:
from Bonnie Terry. Satin glaze. solid brown where thin to medium. Mottled breaking blues browns and gold. Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Jackson Ball 10.0 10.00 Custer feldspar 50.0 50.00 Flint 20.0 20.00 Wollastonite 10.0 10.00 Gerstley borate 4.0 4.00 Zinc oxide 3.0 3.00 Bentonite 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 3.0 3.00 Cobalt oxide 2.0 2.00
Comments:
Very strong blue in salt fire. Dark, electric blue to blue-black in reduction. Works in once-fire application.
Recipe: (Percent, Batch)
Cornwall Stone 46.0 46.00 Whiting 34.0 34.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 4.0 4.00 Tin oxide 4.0 4.00
Comments:
Good copper blue without barium. Webs and streaks nicely. VC ed
Recipe: (Percent, Batch)
Cornwall Stone 46.0 46.00 Whiting 34.0 34.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 4.0 4.00 Tin oxide 4.0 4.00
Comments:
Good copper blue without barium. Webs and streaks nicely. VC ed
Recipe: (Percent, Batch)
Cornwall Stone 46.0 46.00 Whiting 34.0 34.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 4.0 4.00 Tin oxide 4.0 4.00
Comments:
From Jeff Oestreich.
Recipe: (Percent, Batch)
Kona F-4 feldspar 23.6 23.60 Whiting 18.0 17.98 Ball clay 29.2 29.21 Flint 29.2 29.21 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 13.5 13.48
Comments:
Cone 9-10 R and Salt Jonathan Kaplan, president jonathan@csn.net Ceramic Design Group Ltd./Production Services PO Box 775112 Steamboat Springs CO 80477 Plant Location 30800 Moffat Ave Unit 13 Steamboat Springs CO 80487 (970) 879-9139*voice and fax http://www.craftweb.com/org/jkaplan/cdg.shtml http://digitalfire.com/education/articles/kaplan1.htm ------------------------------
Recipe: (Percent, Batch)
Nepheline syenite 42.7 42.70 Barium carbonate 38.8 38.80 Ball clay 10.7 10.70 Flint 7.8 7.80 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 1.0 1.00 Red iron oxide 3.0 3.00 Titanium dioxide 4.0 4.00
Comments:
Bright matt, green copper patina. From Ayumi Horie.
Recipe: (Percent, Batch)
Redart 85.7 60.00 Ball clay 7.1 5.00 Flint 7.1 5.00 ----- -------- Totals: 100.0 70.00
Also add:
Manganese dioxide 64.3 45.00 Black copper oxide 7.1 5.00 Cobalt oxide 7.1 5.00
Comments:
NOT for food.
Recipe: (Percent, Batch)
Redart 85.8 85.70 Ball clay 7.1 7.10 Flint 7.1 7.10 ----- -------- Totals: 100.0 99.90
Also add:
Manganese dioxide 64.4 64.30 Black copper oxide 7.1 7.10 Cobalt oxide 7.1 7.10
Comments:
NOT for food. A.k.a. Reynolds Gold Metallic. Good at cone 6. Runs at cone 10.
Recipe: (Percent, Batch)
Ball clay 7.0 7.00 Redart 86.0 86.00 Flint 7.0 7.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 14.0 14.00 Copper carbonate 14.0 14.00 Manganese dioxide 64.0 64.00
Comments:
From Margaret Bohls. Cone 9 electric. Use thick. Will brighten up if re-fired to 04.
Recipe: (Percent, Batch)
Potash feldspar 85.2 67.50 Whiting 3.5 2.75 Talc 1.6 1.25 Kaolin 5.4 4.25 Silica 4.4 3.50 ----- -------- Totals: 100.0 79.25
Also add:
Red iron oxide 0.9 0.75
Comments:
Variations -- Shiny: + MnO2 20 Dull: +MnO2 10 + CuCO3 10
Recipe: (Percent, Batch)
Ball clay 7.0 7.00 Redart 86.0 86.00 Flint 7.0 7.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 14.0 14.00 Copper carbonate 14.0 14.00 Manganese dioxide 64.0 64.00
Comments:
Metallic bronze. Use thick. Will brighten up if re-fired to cone 04. From Margaret Bohls.
Recipe: (Percent, Batch)
Kona F-4 feldspar 44.0 44.00 Whiting 11.0 11.00 Dolomite 17.0 17.00 EPK 17.0 17.00 Flint 11.0 11.00 ----- -------- Totals: 100.0 100.00
Also add:
Manganese carbonate 11.0 11.00
Comments:
Runs, pools. Crazes in pooled areas. Matt thin, glossy thick.
Recipe: (Percent, Batch)
Nepheline syenite 70.0 70.00 Whiting 5.0 5.00 Gerstley borate 2.0 2.00 Petalite 15.0 15.00 Kentucky OM #4 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Yellow ochre 6.0 6.00
Comments:
From Sam Chung. Original base is Steel Blue.
Recipe: (Percent, Batch)
Nepheline syenite 70.0 70.00 Whiting 5.0 5.00 Gerstley borate 2.0 2.00 Petalite 15.0 15.00 Kentucky OM #4 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Yellow ochre 6.0 6.00
Comments:
from Sam Chung. Fire in neutral soda atmosphere for best results. Variations -- Big Sky - + 1.5% copper carb plus 5% bone ash
Recipe: (Percent, Batch)
Nepheline syenite 70.0 70.00 Whiting 5.0 5.00 Gerstley borate 2.0 2.00 Petalite 15.0 15.00 Kentucky OM #4 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Yellow ochre 6.0 6.00
Comments:
from Sam Chung. Fire in neutral soda atmosphere for best results. Variations -- Big Sky - + 1.5% copper carb plus 5% bone ash
Recipe: (Percent, Batch)
Barium carbonate 2.9 2.86 Talc 10.5 10.48 Whiting 17.1 17.14 Feldspar 47.6 47.62 Kaolin 7.6 7.62 Flint 14.3 14.28 ----- -------- Totals: 100.0 100.00
Also add:
Nickel oxide 1.0 0.95 Red iron oxide 7.6 7.62
Comments:
from Tony W.T. Yeh (3/95 CM) Kathleen Gordon Palo Alto,Ca email:emgordon@batnet.com voice:415-328-9164
Recipe: (Percent, Batch)
Gerstley borate 10.5 10.50 Dolomite 6.8 6.80 Whiting 9.0 9.00 Potash feldspar 29.3 29.30 Kaolin 6.8 6.80 Talc 13.5 13.50 Flint 24.1 24.10 ----- -------- Totals: 100.0 100.00
Also add:
Opax 8.0 8.00
Comments:
I have a problem with the following glaze that I hope some of the glaze chemistry Guru's out there might be able to help me with. I have used this glaze for years now with good success but it requires cone 10 flat and 11 tipping to mature. I would like to lower the temp. to a 9 flat and cone 10 tipping but don't really know where to begin. I fire a 35 cubic ft. Minnesota Flat Top with natural gas. If anyone can get me started, I would be grateful. Also, I have been trying to paint with stains over this glaze. I use them mixed with water and gerstly borate but can't get a smooth flow going. I was wondering how mixing the stains right in with some of the Buttermilk would work. Does anyone have suggestions??? Many thanks for your time. I love this group and have learned so much from reading your shares. Gloria DavidsonMy Turn Pottery
Recipe: (Percent, Batch)
Gerstley borate 13.0 13.00 Dolomite 6.0 6.00 Whiting 9.0 9.00 G-200 feldspar 29.0 29.00 EPK 6.0 6.00 Talc 16.0 16.00 Silica 21.0 21.00 ----- -------- Totals: 100.0 100.00
Also add:
Opax 8.0 8.00
Comments:
can also use Custer feldspar instead of G-200 spar. I may have lowered the temperature too much - so - mix this one (500 grams) and test it in a cool part of your kiln (with large cones beside it. Then mix equal parts (by volume) with your original. This will give you the recipe between the two. If it is better than either the new one I am sending add each ingrediant together (fome my new one and your old one) to get the recipe for the middle one. Gerstley borate 10.5 + 13.0 = 23.5 divided by 2 =11.75 for instance. By the way both glazes are seriously short of Alumina and Silica and oversupplied with Magnesium so don't consider this a durable glaze. There is not a toxicity problem because there are no problematic oxides in the glaze - just be careful what you mix with and put under or over this glaze in areas that will come in contact with food. Ron Roy Toronto, Canada Evenings, call 416 439 2621 Fax, 416 438 7849 Studio: 416-752-7862. Email ronroy@astral.magic.ca Home page http://digitalfire.com/education/people/ronroy.htm
Recipe: (Percent, Batch)
Potash feldspar 41.5 41.50 Whiting 15.0 15.00 Zinc oxide 12.0 12.00 China clay 4.5 4.50 Silica 27.0 27.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 1.0 1.00
Comments:
A satin finished celadon that where thick, ran a little, and and it glossed. Could probably be made into a gloss for ^6. submitted by: Carol Durnford e-mail: durnford@selway.umt.edu source for original recipe: Ceramics Monthly
Recipe: (Percent, Batch)
Custer feldspar 34.7 34.70 Silica 17.8 17.80 EPK 14.7 14.70 Whiting 8.8 8.80 Dolomite 6.3 6.30 Frit 3134 17.7 17.70 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Custer feldspar 50.0 50.00 Barium carbonate 14.0 14.00 Whiting 7.0 7.00 Grolleg Kaolin 5.0 5.00 Silica 24.0 24.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.0 2.00
Comments:
Spanish red iron oxide is prefered. I have found that my blue celadon glaze, which is very similar to others given to you, likes all the reduction I can give it. I fire blue celadon pieces in the same firings I go for carbon trapping with my shinos. The extra reduction along with a good thick application of the blue celadon glaze, I think, encourages the bubbles trapped in the glaze which gives it a nice softness to the glossy glaze. I introduce a heavy reduction at cone 010 through to cone 06 then lighten up a bit for the rest of the firing. Also, drips melt out and do not show. Despite the only average amount of clay in the glaze, but high amount of feldspar and flint, the glaze does not run at all at cone 10 EPK helps and use Spanish Red Iron oxide and do not get any speckling. I feel the blue celadon glaze is much nicer on porcelain. You may need to add a suspender, I don't though. I have substituted Strontium Carbonate for half of the Barium and all of the Barium at 1 part Barium to 3/4 parts Strontium and received just as nice results. I have the understanding from talking with other colleagues that the glaze should be safe from Barium poisoning because it is a glossy glaze where enough silica molecules have combined with the Barium molecules to make it stable. But, I have never had it tested. Does anyone know if this is true or not? Please reply. Enjoy, Cone 10 down, submitted by: Steve Loucks e-mail: STEVLOUCKS@aol.com
Recipe: (Percent, Batch)
Kaolin 10.0 10.00 Whiting 20.0 20.00 Silica 30.0 30.00 Feldspar 40.0 40.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.0 2.00
Comments:
This Celadon recipe is from Ceramics Monthly, March 1982, Cone 9/10 and sourced to Sandy Simon: Dennis Davis in Stafford, VA dhdavis@erols.com
Recipe: (Percent, Batch)
Nepheline syenite 28.0 28.00 Dolomite 12.0 12.00 Whiting 7.0 7.00 Barium carbonate 6.0 6.00 Lithium carbonate 1.0 1.00 EPK 10.0 10.00 Silica 36.0 36.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.0 3.00 Copper carbonate 2.0 2.00 Cobalt carbonate 0.3 0.25
Comments:
This turned out pale blue-grey on porcelain, looked a little like a celadon. Worked very nicely over carved and impressed pieces. source for original recipe: This is a variation on one of Emmanuel Cooper's glazes, #202. submitted by: Kat Neely-Jones e-mail: SolvejgMa@AOL.COM
Recipe: (Percent, Batch)
Whiting 19.6 19.60 Flint 32.9 32.90 EPK 20.0 20.00 G-200 feldspar 27.5 27.50 ----- -------- Totals: 100.0 100.00
Also add:
Yellow ochre 2.0 2.00
Comments:
from Alfred Looks like a pretty typical celedon to me.. glossy with no crazing
Recipe: (Percent, Batch)
Whiting 19.6 19.60 Flint 32.9 32.90 EPK 20.0 20.00 G-200 feldspar 27.5 27.50 ----- -------- Totals: 100.0 100.00
Also add:
Yellow ochre 2.0 2.00
Comments:
also from Alfred Looks like a pretty typical celedon to me.. glossy with no crazing Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. tracy wilsonTracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Kona F-4 feldspar 36.9 40.00 Gerstley borate 12.0 13.00 Barium carbonate 4.6 5.00 Whiting 7.8 8.50 Flint 26.7 29.00 Frit 3110 2.8 3.00 Grolleg 9.2 10.00 ----- -------- Totals: 100.0 108.50
Also add:
Tin oxide 0.9 1.00 Barnard clay 2.8 3.00
Comments:
From Sam Chung. Hensley Clear + 3% Barnard.
Recipe: (Percent, Batch)
Nepheline syenite 29.5 29.50 Dolomite 1.9 1.90 Whiting 9.9 9.90 Barium carbonate 4.6 4.60 Silica 31.3 31.30 Frit 3195 22.8 22.80 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 0.3 0.30 Barnard clay 0.8 0.80 Bentonite 0.5 0.50
Comments:
From Sam Chung. Hensley Clear + 3% Barnard.
Recipe: (Percent, Batch)
Silica 36.0 36.00 G-200 Feldspar 23.0 23.00 EPK 18.0 18.00 Whiting 14.0 14.00 Talc 9.0 9.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 1.0 1.00
Comments:
NOTE: recipe originally specified 'Talc, New York' Locally we use a variant of Harlan House's celadon both as a clear base and as fine green glaze for porcelain. (The green looks peculiar on our buff-colored stoneware). submitted by: Tom Buck e-mail: aa563@main.freenet. hamilton.on.ca
Recipe: (Percent, Batch)
G-200 Feldspar 43.0 43.04 Silica 200 mesh 38.6 38.64 Strontium carbonate 12.6 12.61 EPK 5.7 5.71 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 0.1 0.10
Comments:
If we were to use Tom Coleman's recipe hereabouts we of necessity would use G200 feldspar (custer is hard to get). So, TC's RCP comes out like this: Firstly, as noted we'd use a different feldspar (still a K one tho') and we switch from barium carbonate to strontium carbonate since Fusion (Ontario Potters Assn) has a campaign going (launched by Ron Roy) to avoid the use of barium over 5% content in the glaze mix. I fully expect this version to perform like the original. Both might crackle on a tight porcelain. Should be fun trying the three. Cheers TomBuck submitted by: Tom Buck e-mail: aa563@main.freenet. hamilton.on.ca
Recipe: (Percent, Batch)
Silica 56.1 56.12 EPK 20.4 20.41 Whiting 15.3 15.31 Lithium carbonate 8.2 8.16 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.0 2.04
Comments:
Many years ago Richard Beherens proposed this one. The virtue of this recipe is its COE of 5.3 suitable for procelains (or talc bodies) of low expansion.
Recipe: (Percent, Batch)
Kona F-4 feldspar 51.7 51.72 EPK 4.1 4.14 Whiting 6.3 6.33 Silica 20.9 20.93 Barium carbonate 16.9 16.88 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.1 2.10 Tin oxide 2.7 2.70
Comments:
It is a lovely blue green. Apply thickly. We begin reduction at cone 08 and maintain it until the end, cone 9 down, 10 halfway. There is a great deal of depth to the glaze, with lots of trapped air bubbles. submitted by: Candice Roeder e-mail: CRoeder1@aol.com
Recipe: (Percent, Batch)
Custer feldspar 54.0 54.00 Whiting 6.6 6.60 Silica 21.8 21.80 Georgia Kaolin 4.3 4.30 Strontium carbonate 13.3 13.30 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.1 2.10 Bentonite 2.0 2.00
Comments:
It is a lovely blue green.
Recipe: (Percent, Batch)
Nepheline syenite 36.2 36.20 Whiting 7.0 7.00 Strontium carbonate 13.5 13.50 Silica 39.4 39.40 EPK 3.9 3.90 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.1 2.10 Bentonite 2.0 2.00 Kaopaque 100.0 100.00
Comments:
It is a lovely blue green. Apply thickly. We begin reduction at cone 08 and maintain it until the end, cone 9 down, 10 halfway. There is a great deal of depth to the glaze, with lots of trapped air bubbles. submitted by: Candice Roeder e-mail: CRoeder1@aol.com
Recipe: (Percent, Batch)
Whiting 17.9 17.95 Potash feldspar 43.6 43.59 EPK Kaolin 10.3 10.26 Flint 28.2 28.20 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 0.2 0.25 Red iron oxide 0.8 0.77
Comments:
The Apple Green Celadon is very similar to one I've used with good results except you left out the chrome oxide. Good luck! Rafael Molina-Rodriguez rmr3431@dcccd.edu
Recipe: (Percent, Batch)
Potash feldspar 46.0 46.00 Barium carbonate 16.0 16.00 China clay 6.0 6.00 Silica 32.0 32.00 ----- -------- Totals: 100.0 100.00
Also add:
Yellow iron oxide 1.0 1.00
Comments:
( I use EPK ) Note: A very nice glaze. Unfortunately, it crazed on two different porcelain bodies I tried it on. Another thing you might try is firing celadons in a saggar. Someone on the list correct me if I'm wrong, but didn't the Chinese fire celadons in saggars in a wood kiln. I've fired in saggars with no lids with good results. Good luck! Rafael Molina-Rodriguez rmr3431@dcccd.edu
Recipe: (Percent, Batch)
Nepheline syenite 71.6 71.60 Dolomite 23.6 23.60 Kentucky OM #4 4.8 4.80 ----- -------- Totals: 100.0 100.00
Also add:
Superpax 17.9 17.90 Bentonite 4.5 4.50 Copper carbonate 1.5 1.50
Comments:
Recipe: (Percent, Batch)
G-200 feldspar 45.0 45.00 Flint 22.0 22.00 EPK 8.0 8.00 Whiting 11.0 11.00 Gerstley borate 9.0 9.00 Dolomite 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
G-200 feldspar 45.0 45.00 Flint 22.0 22.00 EPK 8.0 8.00 Whiting 11.0 11.00 Gerstley borate 9.0 9.00 Dolomite 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Custer feldspar 34.7 34.70 Silica 17.8 17.80 EPK 14.7 14.70 Whiting 8.8 8.80 Dolomite 6.3 6.30 Frit 3134 17.7 17.70 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Cornwall Stone 40.0 40.00 Whiting 15.0 15.00 Strontium carbonate 10.0 10.00 Flint 20.0 20.00 Grolleg 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
From Matt Long, used on his martini glasses. Fabulous Green. Variations -- add deep crimson Mason stain 6003 for green 10-12%
Recipe: (Percent, Batch)
Barium carbonate 2.0 2.00 Custer spar 61.3 61.20 Whiting 7.1 7.10 EPK 5.1 5.10 Silica 24.5 24.50 ----- -------- Totals: 100.0 99.90
Also add:
Black iron oxide 1.5 1.50 Bentonite 1.0 1.00
Comments:
from Hal Harold J. McWHINNIE Email:Harold_J_McWHINNIE@umail.umd.edu (hm9) Phone:53125
Recipe: (Percent, Batch)
Potash feldspar 79.6 79.60 Flint 14.3 14.30 Whiting 6.1 6.10 ----- -------- Totals: 100.0 100.00
Also add:
Iron oxide 2.3 2.30 Tin oxide 0.6 0.60
Comments:
Recipe: (Percent, Batch)
Nepheline syenite 33.0 33.00 Whiting 20.0 20.00 Flint 30.0 30.00 Ball clay 17.0 17.00 ----- -------- Totals: 100.0 100.00
Also add:
Yellow iron oxide 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Custer feldspar 25.4 25.40 Whiting 25.4 25.40 EPK 6.6 6.60 Ball clay 20.3 20.30 Flint 20.3 20.30 Bone ash 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
Yellow ochre 2.0 2.00 Red iron oxide 1.5 1.50
Comments:
From Karen Newgard
Recipe: (Percent, Batch)
China clay 10.0 10.00 Whiting 20.0 20.00 Silica 30.0 30.00 Feldspar 40.0 40.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 4.0 4.00
Comments:
The glaze that is as old as dirt. it is published in the leech book as old. Use 4% iron + or - depending on color / green to blue if you decorate...put iron design between layers of glaze. very nice. the first glaze i ever made...fired in the first soft brick kiln i ever made. and that was before i had ever seen a soft brick kiln. remember the name Jim McKinnel. one of the first to build soft brick kilns in america. from iowa...one of the real pioneers. mel jacobson
Recipe: (Percent, Batch)
Whiting 17.4 17.40 Zinc oxide 2.3 2.30 Custer feldspar 46.2 46.20 Kaolin 13.9 13.90 Silica 20.2 20.20 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 0.3 0.30
Comments:
Here's a recipe for a blue celadon. Thought it might be useful to someone else as well. I used it a few years back and haven't tried it recently, but as I recall it turns out a nice transparent blue. It came to me directly from the pages of CM - Nov. 1981 issue. Kaolin (can't remember if I used Pioneer or EPK) submitted by: Barb Howe e-mail: bhowe@bach.ccinet.ab.ca
Recipe: (Percent, Batch)
Whiting 27.3 27.30 Magnesium carbonate 3.4 3.40 G-200 feldspar 27.8 27.80 Kaolin 21.3 21.30 Flint 20.2 20.20 ----- -------- Totals: 100.0 100.00
Also add:
Black iron oxide 0.5 0.50
Comments:
From Kathryn Finnerty during her NSCAD days. Original recipe was 277 weight + 1.5 black iron. I assumed it wasn't 1/5%, but if the color is too pale, test w/more Fe. Variations -- Omit black iron and you get icey blue celadon.
Recipe: (Percent, Batch)
Barium carbonate 6.1 6.10 Dolomite 3.0 3.00 Lithium carbonate 2.0 2.00 Whiting 13.1 13.10 Custer feldspar 21.2 21.20 Petalite 21.2 21.20 EPK 15.2 15.20 Flint 18.2 18.20 ----- -------- Totals: 100.0 100.00
Comments:
From Ayumi Horie. Grade A soda glaze. Normally a boring transparent glaze, but when hit w/soda turns matte, feather, and multicolored. Great in oxication & reduction. Variations -- 1/16% cobalt = light blue/white in oxid., light blue/violet in reduc. 2% RIO green/brown/yellow 4% Mn purple/lavender/brown 3% Cu deep green/turq 3% rutile nice tan/white
Recipe: (Percent, Batch)
Custer feldspar 27.0 27.00 OM-4 Ball clay 14.0 14.00 Whiting 20.5 20.50 Silica 31.5 31.50 Kaolin 7.0 7.00 ----- -------- Totals: 100.0 100.00
Comments:
Light Green on porcelain ^9-10 submitted by: Lee in PigsEye e-mail: leelove@MILL2.MILLCOMM.COM
Recipe: (Percent, Batch)
Kona F-4 feldspar 41.9 41.90 Whiting 17.1 17.14 Kaolin 9.5 9.52 Silica 26.7 26.67 Barnard clay 4.8 4.76 ----- -------- Totals: 100.0 99.99
Also add:
Bentonite 1.9 1.90
Comments:
Here's the celadon recipe used successfully at the 92nd St Y in the gas kiln, fired to ^10. submitted by: Jaine Jacobs e-mail: PJakeJ@aol.com
Recipe: (Percent, Batch)
Custer spar 53.0 53.00 EPK 6.0 6.00 Flint 24.0 24.00 Whiting 12.0 12.00 Barium carbonate 2.5 2.50 Zinc oxide 2.5 2.50 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.0 2.00
Comments:
Color is deeper and richer when applied thickly. Color is brighter and more intense over white slip or clay. 8% Iron Oxide yields a temmoku. Glaze Type: Ca K Celadon. Opacity: Transparent. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer feldspar 46.1 46.13 Silica (200m) 31.9 31.89 EPK 5.7 5.66 Barium carbonate 16.3 16.32 ----- -------- Totals: 100.0 100.00
Also add:
Yellow iron oxide 0.2 0.19
Comments:
Tom Coleman gave me this glaze recipe during a workshop at his studio in Nevada. I haven't tried it but Tom and his wife Elaine are famous for their Celadon glazed pottery. submitted by: Donna Potter e-mail: dpotter@nsn.scs.unr.edu
Recipe: (Percent, Batch)
Custer spar 30.0 30.00 Whiting 19.0 19.00 Flint 30.0 30.00 EPK 8.0 8.00 Barnard clay 4.0 4.00 Wood ash 6.0 6.00 Ball clay 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 1.0 1.00
Comments:
Soft satin glow. Heavy green, like some jade. Glaze Type: Ca Celadon. Opacity: Semi-opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Potash feldspar 25.0 25.00 EPK 25.0 25.00 Flint 25.0 25.00 Whiting 25.0 25.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 4.0 4.00 Cobalt carbonate 2.0 2.00 Bentonite 2.0 2.00
Comments:
I make no claims regarding these glazes' reliability or safety. I don't know of their origin. These are in use at Hui No'Eau in Makawao, Maui. sam tomich
Recipe: (Percent, Batch)
Nepheline syenite 42.8 42.81 Silica 27.5 27.52 Whiting 19.4 19.37 EPK 10.3 10.30 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 1.9 1.94
Comments:
Add:CMC 1 tsp. Fire to cone 10 in moderate reduction. A light blue-green transparent gloss Many Clayarters have e-mailed me for this formula (blue-green celadon that crackles over some clays, but not on others),so here it is This formula was found in The Potter's Complete Book of Clay and Glazes by James Chappell. Watson-Guptill Publications. New York Jan jan wax
Recipe: (Percent, Batch)
Custer feldspar 26.0 13.00 Whiting 26.0 13.00 EPK 7.0 3.50 Kentucky OM #4 20.0 10.00 Flint 21.0 10.50 ----- -------- Totals: 100.0 50.00
Also add:
Bentonite 10.0 5.00 Yellow ochre 10.0 5.00
Comments:
From Karen Newgard
Recipe: (Percent, Batch)
Custer feldspar 28.2 27.50 Grolleg 20.5 20.00 Wollastonite 26.7 26.00 Silica 24.6 24.00 ----- -------- Totals: 100.0 97.50
Also add:
Zircopax 0.4 0.40 Veegum T 1.5 1.50 CMC 0.4 0.40 Copper carbonate 0.0 0.02
Comments:
Reliable base glaze. CMC not manditory, but helps w/application. Erbium and higher praseodymium are nto good in this base - dull colors from lower solubility of base. Apply fairly thick, 2-4 coats. David Pier. Variations -- Ureal Green Celadon + Preaseodymium 0.65% Unreal Blue: + neodymium oxice 1.1% Apparently Lavender Celadon: Neodymium oxide 4.5% (color varies w/light source)
Recipe: (Percent, Batch)
G-200 feldspar 30.2 30.20 Dolomite 4.7 4.70 Whiting 15.9 15.90 EPK kaolin 18.9 18.90 Silica 30.3 30.30 ----- -------- Totals: 100.0 100.00
Comments:
Cost/kg 0.24 Si:Al 7.71 SiB:Al 7.71 Expan 6.72 My celedon formula is posted at the end of this message. It's a lime green celedon the way I color it. I use 5% of a native Oregon clay that is very high in Iron. You could maybe get the same color with 5% or so of Alberta slip, or Albany. 1 to 2% additions of red or black iron will give celedons. It is often said that black iron oxide gives bluer celedons, so you might want to try that. It is important to keep a glaze's content of titanium at a near zero level to develop blue celedons as well. Titanium will encourage green. I ran your Neph Sy celedon through Insight and you could reduce the crazing and maybe eliminate it by the direct substitution of potash feldspar for the Neph Sy. You might want to try both Custer and G-200. Custer is higher in silica and would be the most effective one to lower the glazes expansion. G-200 will give a bit better melt I think..........Craig craig martell
Recipe: (Percent, Batch)
Custer spar 20.0 20.00 Kona F-4 feldspar 20.0 20.00 Whiting 2.0 2.00 Dolomite 15.0 15.00 Talc 13.0 13.00 Ball clay 10.0 10.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Manganese dioxide 4.0 4.00
Comments:
then add 2% Bentonite and 4% Manganese (In particular, lately I've wanted to use a reliable cone 10 black satin/waxy glaze, in case you know of one.) Eric, you might like to try Charlie D Manganese. I've seen it used successfully at the 92nd Street Y in the gas kiln, cone 10, reduction for more years than it would be discreet to say: Hope you enjoy it, Jaine in Cresskill
Recipe: (Percent, Batch)
Barium carbonate 6.7 6.70 Lithium carbonate 4.5 4.50 Frit 3110 44.9 44.90 Tile 6 clay 13.4 13.40 Flint 30.5 30.50 ----- -------- Totals: 100.0 100.00
Also add:
Chromium oxide 0.5 0.50 Bentonite 3.1 3.10
Comments:
Recipe: (Percent, Batch)
Strontium carbonate 32.0 30.10 Gerstley borate 4.0 3.80 Wollastonite 3.6 3.40 Nepheline syenite 28.6 26.90 Ball clay 10.1 9.50 Flint 21.8 20.50 ----- -------- Totals: 100.0 94.20
Also add:
Chromium oxide 0.5 0.50
Comments:
Recipe: (Percent, Batch)
Potash feldspar 86.0 86.00 Whiting 7.5 7.50 Softwood ash 4.3 4.30 Bone ash 2.2 2.20 ----- -------- Totals: 100.0 100.00
Also add:
Yellow ochre 1.1 1.10 Bentonite 1.1 1.10
Comments:
This is a recipe that I have had nothing but good luck with. To get the best effect, I use it on grolleg porcelain: The phosphorus in the wood ash is important for creating the minute bubbles in the glaze which give this glaze its blue color. You might check out Tichane's book on Celadon Blues, he explains this phenomenon. submitted by: Lee Love e-mail: leelove@mi112.MillComm.COM
Recipe: (Percent, Batch)
Potash feldspar 42.6 42.60 Flint 29.7 29.70 Whiting 19.8 19.80 Talc 5.0 5.00 Kaolin 2.0 2.00 Gerstley borate 1.0 1.00 ----- -------- Totals: 100.0 100.10
Also add:
Red iron oxide 1.0 1.00
Comments:
>Does anyone have a reliable recipe for a Chun Blue or other Blue that does well in reduction over an iron rich claybody. ....... Anne Worner Yes! I have been using this glaze for some years - it originated with Derek Emms and was published in Ceramic Review. Needs reduction ^9 - 10 The firing temp affects it considerably. Works well over Tenmoku type glazes or dark bodies. The colour is an optical effect and the dark body helps the colour. pierre brayford
Recipe: (Percent, Batch)
Cornwall Stone 43.0 43.00 Whiting 19.4 19.40 Kaolin 10.8 10.80 Silica 26.9 26.90 ----- -------- Totals: 100.0 100.10
Also add:
Titanium dioxide 7.5 7.50 Iron oxide 1.1 1.10
Comments:
Originally specified Raval Feldspar (see below). I have a Chun blue that works well over dark slips and glazes (tenmoku), I'm not sure though if our materials here in the Philippines will match yours, but it might be worth a try. Raval Feldspar is almost identical to Cornwall Stone. If too thin the glaze is mauve transparent, if too thick opaque off-white. The trick is to get the thickness just right to produce the opalescent blue. Jon Pettyjohn Manila jon@mozcom.com
Recipe: (Percent, Batch)
Whiting 27.6 27.60 Custer feldspar 27.6 27.60 Kaolin 21.5 21.50 Flint 19.8 19.80 Magnesium carbonate 3.5 3.50 ----- -------- Totals: 100.0 100.00
Also add:
Ultrox 10.1 10.10 Rutile 5.1 5.10 Cobalt oxide 1.0 1.00 Red iron oxide 1.0 1.00
Comments:
Ultrox 10% Rutile 5% Cobalt OX 1% Red Iron Ox 1% (I guess you could use Wollastonite instead of whiting as described in Tony Hansen's Magic of Fire) (You can use 1% cobalt carbonate for a greyer tone of blue) Does anyone have a reliable recipe for a Chun Blue or other Blue that does well in reduction over an iron rich claybody. We currently have a nice Chun that does well over white stoneware and porcelain, but on iron rich clays it all but disappears. This is what we are currently using. Anne Worner John L. Worner <70400.663@compuserve.com>
Recipe: (Percent, Batch)
Potash feldspar 54.8 54.80 Whiting 13.7 13.70 Bone ash 1.4 1.40 Barium carbonate 2.7 2.70 Silica 27.4 27.40 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 1.1 1.10
Comments:
This glaze has to be fired as you would fire a copper red glaze otherwise you will not get the beautiful colour and texture. If the glaze is clear then you are not applying it thick enough. Also, I guess I should mention that it should be fired to cone 9-10. Hopefully it works for you as it has for me. Happy testing! submitted by: Craig Pearce e-mail: i931009@redgum.ucnv.edu.au
Recipe: (Percent, Batch)
Custer spar 45.0 45.00 Grolleg 2.1 2.10 Flint 29.0 29.00 Gerstley borate 9.5 9.50 Dolomite 9.5 9.50 Zinc oxide 1.9 1.90 Strontium carbonate 3.1 3.10 ----- -------- Totals: 100.0 100.10
Also add:
Tin oxide 2.8 2.80 Red iron oxide 0.5 0.50
Comments:
Pete Pinnell: nicest blue celadon. Use over porcelain. Fire a bit cool: 9-10). Bluest on grolleg rather than domestic porcelain.
Recipe: (Percent, Batch)
Kona F-4 feldspar 54.3 54.30 Whiting 20.0 20.00 Zinc oxide 17.1 17.10 Kentucky OM #4 8.6 8.60 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Kentucky OM #4 25.0 25.00 EPK 25.0 25.00 Custer feldspar 25.0 25.00 Flint 15.0 15.00 Nepheline syenite 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Soda ash 0.1 0.10 Sodium silicate 0.6 0.57
Comments:
Add 35 water. Dissolve soda ash and add sodium silicate to water before adding clay.
Recipe: (Percent, Batch)
Tile 6 clay 24.4 20.00 EPK 24.4 20.00 GoldArt 18.3 15.00 Pine Lake 18.3 15.00 Custer feldspar 14.6 12.00 ----- -------- Totals: 100.0 82.00
Also add:
Molochite 2.4 2.00
Comments:
Recipe: (Percent, Batch)
GoldArt 65.0 65.00 A.P. Green 13.0 13.00 Ball clay 13.0 13.00 Custer feldspar 9.0 9.00 ----- -------- Totals: 100.0 100.00
Also add:
grog 6.0 6.00
Comments:
Recipe: (Percent, Batch)
Custer feldspar 25.1 25.00 Ball clay 18.1 18.00 Fire clay 11.0 11.00 Velvacast 21.1 21.00 Pyrophyllite 12.2 12.20 Silica 12.5 12.50 ----- -------- Totals: 100.0 99.70
Comments:
Calls for FC 340 Ball Clay, Greenstripe fireclay. From Jonathan Kaplan. Oct. 2012 CM. Start with 30% water adn adjust to specific gravity of 1.78. Start with .35% Darvan 811 and adjust until the correct deflocculation is achieved. Cast a small test sample and time for optimum thickness to determine if viscosity and spec. gravity good.
Recipe: (Percent, Batch)
EPK 8.0 8.00 Velva Cast 7.0 7.00 Grolleg 35.0 35.00 Silica 20.0 20.00 Custer feldspar 30.0 30.00 ----- -------- Totals: 100.0 100.00
Comments:
ADD: soda ash 0.10, water 40, Darvan #811 0.35. Use 325 mesh silica. From Richard Burkett. Casts quickly. Sets up firmly. Fires very white.
Recipe: (Percent, Batch)
Custer feldspar 28.1 28.10 Ball clay 20.2 20.20 Greenstripe fireclay 12.3 12.30 Velva Cast 23.7 23.70 Pyrophyllite 2.2 2.20 Silica 13.4 13.40 ----- -------- Totals: 100.0 99.90
Also add:
Grog 1.1 1.10
Comments:
Calls for FC 340 ball clay, and Opticast or Velvacast kaolin. Rather than fine grog, I might try the same amount of calcined kaolin for smaller partical size that will sieve well and not settle as fast. Calls for 30% water to begin to reach specific gravity of 1.75 - 1.78. Start w 0.35% Darvan 811 and adjust to correct defloccilation. Viscosity 31 seconds.
Recipe: (Percent, Batch)
Grolleg 30.0 30.00 EPK 6.0 6.00 Tennessee ball clay 7.0 7.00 Ball clay 7.0 7.00 Custer feldspar 25.0 25.00 Flint 25.0 25.00 ----- -------- Totals: 100.0 100.00
Also add:
Sodium silicate 0.3 0.25
Comments:
Calls for SGP ball clay. Variations -- + water 40%
Recipe: (Percent, Batch)
Custer feldspar 34.0 34.00 Ball clay 10.0 10.00 Ball clay SPG 10.0 10.00 Grolleg 4.0 4.00 EPK 8.0 8.00 Silica 34.0 34.00 ----- -------- Totals: 100.0 100.00
Comments:
+ water 40% + sodium silicate 0.34% From CM Apr 2014
Recipe: (Percent, Batch)
Feldspar 34.0 34.00 Kaolin 40.0 40.00 Flint 26.0 26.00 ----- -------- Totals: 100.0 100.00
Also add:
Darvan 0.0 0.01
Comments:
Add 35-40 water. Translucent, prone to slumping.
Recipe: (Percent, Batch)
Grolleg 40.0 40.00 C & C 5.0 5.00 Custer feldspar 26.0 26.00 Flint 19.0 19.00 pyrotrol 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Sodium silicate 0.3 0.25
Comments:
From Andrew Martin's plaster book, "Mold Making & Slip Casting". "Annette uses this slip to cast ver soft gestured forms. I have used this slip for forms that put a lot of stres on the slip as it dries. In these cases I had lots of cracking appear in the bisuqe. As a body it tends toward non-plasticiy, so more elaborate forms woudl benefit from a slip w/higher ball clay content. Low ball clay in this tends to be more translucent."
Recipe: (Percent, Batch)
Kentucky OM #4 25.0 25.00 EPK 25.0 25.00 Custer feldspar 25.0 25.00 Flint 15.0 15.00 Nepheline syenite 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Soda ash 0.1 0.10 Sodium silicate 0.6 0.57
Comments:
Add 35 water. Dissolve soda ash and add sodium silicate to water before adding clay.
Recipe: (Percent, Batch)
Kentucky OM #4 25.0 2500.00 EPK 25.0 2500.00 Custer feldspar 25.0 2500.00 Flint 15.0 1500.00 Nepheline syenite 10.0 1000.00 ----- -------- Totals: 100.0 10000.00
Also add:
Soda ash 0.1 10.00 Sodium silicate 0.6 57.00
Comments:
Variations -- Add water 3500 grams. Add soda ash to warm water (part of 3500gms)
Recipe: (Percent, Batch)
Grolleg 30.0 30.00 kaolin Georgia 12.0 12.00 Ball clay 8.0 8.00 Flint 20.0 20.00 pyrotrol 12.0 12.00 Custer feldspar 18.0 18.00 ----- -------- Totals: 100.0 100.00
Also add:
Darvan 0.4 0.35
Comments:
Add 40 water. Easier casting body than Reeves porcelain - holds form better.
Recipe: (Percent, Batch)
Custer feldspar 18.0 18.00 Ball clay 8.0 8.00 Grolleg 30.0 30.00 Pyrophyllite 12.0 12.00 Velvacast 12.0 12.00 Silica 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Add Darvan 7 0.35% and water 40%. From Jonathan Kaplan CM Oct. 2012.
Recipe: (Percent, Batch)
Grolleg 35.0 35.00 EPK 7.0 7.00 Ball clay 8.0 8.00 pyrotrol 7.0 7.00 Custer feldspar 18.0 18.00 Flint 25.0 25.00 ----- -------- Totals: 100.0 100.00
Also add:
Sodium silicate 0.3 0.25
Comments:
From Andrew Martin's plaster book. p. 135. Variations -- + water 40% Calls for SGP Ball clay. Sodium silicate .25-.5
Recipe: (Percent, Batch)
Kentucky OM #4 42.9 45.00 China clay 23.8 25.00 Fire clay 19.0 20.00 Flint 14.3 15.00 ----- -------- Totals: 100.0 105.00
Comments:
Recipe: (Percent, Batch)
Petalite 30.0 30.00 Spodumene 20.0 20.00 Fire clay 30.0 30.00 Kentucky OM #4 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 1.0 1.00
Comments:
From handout from Robbie Lobell (Cook on Clay). She soda-fires.
Recipe: (Percent, Batch)
G-200 feldspar 10.0 10.00 Spodumene 30.0 30.00 Pyrax 10.0 10.00 Hawthorne Bond 25.0 25.00 Kentucky OM #4 25.0 25.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.0 2.00 Grog 5.0 5.00
Comments:
Calls for 48 mesh grog. From Ceramics Mo May 2011. See article. ANY changes can make a major difference. When flameware fails, it fails dramatically and may be a safety hazard.From Robbie Lobell, used for ovenware. Variations -- 1.75-2 Red iron oxide.
Recipe: (Percent, Batch)
A.P. Green 33.0 33.00 XX Sagger 26.0 26.00 Tile 6 clay 15.0 15.00 EPK 19.0 19.00 Custer feldspar 7.0 7.00 ----- -------- Totals: 100.0 100.00
Also add:
Grog 15.0 15.00 Kyanite 7.0 7.00
Comments:
From Nancy Barbour. Pale buff blushing orange. Variations -- Use 48 mesh grog and 48 mesh kyanite.
Recipe: (Percent, Batch)
Foundry Hill Creme 40.0 40.00 Tile 6 clay 20.0 20.00 Kentucky OM #4 20.0 20.00 Custer feldspar 15.0 15.00 Flint 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Grolleg 45.0 45.00 Tennessee ball clay 15.0 15.00 Custer feldspar 20.0 20.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Good whiteness. Lighter than Nelson, Woodman, or VC Off-white stonewares.
Recipe: (Percent, Batch)
Grolleg 11.9 12.50 EPK 19.0 20.00 Tile 6 clay 23.8 25.00 XX Sagger 11.9 12.50 G-200 feldspar 19.0 20.00 Pyrax 14.3 15.00 ----- -------- Totals: 100.0 105.00
Also add:
Bentonite 1.9 2.00
Comments:
Recipe: (Percent, Batch)
Grolleg 45.0 45.00 Tennessee ball clay 15.0 15.00 Custer feldspar 20.0 20.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Good whiteness. Lighter than Nelson, Woodman, or VC Off-white stonewares.
Recipe: (Percent, Batch)
#6 Tile clay 30.0 30.00 EPK 15.0 15.00 Tennessee #1 5.0 5.00 Custer feldspar 27.0 27.00 Flint 23.0 23.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Epsom salts 0.3 0.25
Comments:
Peter Beasecker Porcelain Recipe.
Recipe: (Percent, Batch)
Grolleg 50.0 50.00 Custer feldspar 27.0 27.00 Flint 23.0 23.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Epsom salts 0.3 0.25
Comments:
From Peter Beasecker
Recipe: (Percent, Batch)
Grolleg 26.4 50.00 Tile 6 clay 26.4 50.00 Custer feldspar 20.8 39.50 Flint 13.9 26.30 pyrotrol 12.5 23.70 ----- -------- Totals: 100.0 189.50
Also add:
Bentonite 2.1 4.00
Comments:
In Soldner mixer ass 9 gallons of water (72 lbs.) and 1/2 - 1 gallon vinegar. This yields very, very soft clay, which I pile into a 30-gallon bucket and allong to age for at least 6 months. From Margaret Bohls.
Recipe: (Percent, Batch)
Kentucky OM #4 25.0 25.00 EPK 25.0 25.00 Custer feldspar 25.0 25.00 Flint 15.0 15.00 Nepheline syenite 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Soda ash 0.1 0.10 Sodium silicate 0.6 0.57
Comments:
Add 35 water. Dissolve soda ash and add sodium silicate to water before adding clay.
Recipe: (Percent, Batch)
Grolleg 11.9 12.50 EPK 19.0 20.00 Tile 6 clay 23.8 25.00 XX Sagger 11.9 12.50 G-200 feldspar 19.0 20.00 Pyrax 14.3 15.00 ----- -------- Totals: 100.0 105.00
Also add:
Bentonite 1.9 2.00
Comments:
Recipe: (Percent, Batch)
Grolleg 48.5 48.46 Silica 20.8 20.84 K-200 feldspar 20.8 20.84 pyrotrol 6.8 6.78 Bentonite 3.1 3.08 ----- -------- Totals: 100.0 100.00
Comments:
From Sylvie Granatelli's web site. Use 1/2 gallon cider vinegar w/water.
Recipe: (Percent, Batch)
Grolleg 55.0 55.00 Silica 27.0 27.00 Custer feldspar 15.0 15.00 Alumina 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Macaloid 2.0 2.00
Comments:
Use 200 mesh calcined alumina. Mix V-Gum-T and alumina in a 5-gal. bucket and let it slake, then add to clay mixer. Variations -- add V-Gum-T 2% in place of macaloid if you have that.
Recipe: (Percent, Batch)
Tile 6 clay 31.0 31.00 EPK 15.0 15.00 Custer feldspar 25.0 25.00 Silica 15.0 15.00 Ball clay 6.0 6.00 Pyrophyllite 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Tile 6 clay 31.0 31.00 EPK 15.0 15.00 Custer feldspar 25.0 25.00 Silica 15.0 15.00 Ball clay 6.0 6.00 Pyrophyllite 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
Pyrotrol is a brand of pyrophyllite
Recipe: (Percent, Batch)
Grolleg 52.0 51.00 Minspar 15.3 15.00 Silica 25.5 25.00 Pyrax 5.1 5.00 Alumina 2.0 2.00 ----- -------- Totals: 100.0 98.00
Also add:
Veegum T 2.0 2.00
Comments:
Pottery Making Illus. Jul/Aug 2013. Doug Peltzman.
Recipe: (Percent, Batch)
Tile 6 clay 38.5 38.50 Kentucky OM #4 19.2 19.20 Flint 19.2 19.20 Custer feldspar 23.1 23.10 ----- -------- Totals: 100.0 100.00
Comments:
Not the whitest, but good working qualities.
Recipe: (Percent, Batch)
Grolleg 40.9 45.00 Ball clay 10.0 11.00 Custer feldspar 18.2 20.00 Flint 21.8 24.00 Bentonite 9.1 10.00 ----- -------- Totals: 100.0 110.00
Comments:
Good whiteness in oxidation. Whiter than Nelson, Woodman, or VC Off-White bodies.
Recipe: (Percent, Batch)
Grolleg 27.3 45.00 EPK 18.2 30.00 Kona F-4 feldspar 9.1 15.00 Custer feldspar 9.1 15.00 Pyrax 9.1 15.00 Flint 9.1 15.00 Bentonite 18.2 30.00 ----- -------- Totals: 100.0 165.00
Comments:
slightly off-white in oxidation. Whiter than Nelson, Woodman, or VC Off-White.
Recipe: (Percent, Batch)
Grolleg 50.0 50.00 Ball clay 5.0 5.00 Flint 13.0 13.00 Custer feldspar 20.0 20.00 Pyrophyllite 12.0 12.00 ----- -------- Totals: 100.0 100.00
Comments:
Clay Times Sum/Fall 2014
Recipe: (Percent, Batch)
Tile 6 clay 25.0 25.00 XX Sagger 15.0 15.00 Ball clay 10.0 10.00 Feldspar 30.0 30.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.0 1.00
Comments:
Good for salt and wood. From Bill Brouillard.
Recipe: (Percent, Batch)
Hawthorne Bond clay 45.0 45.00 Kentucky OM #4 20.0 20.00 Newman Red clay 20.0 20.00 Custer feldspar 15.0 15.00 ----- -------- Totals: 100.0 100.00
Also add:
Grog 5.0 5.00
Comments:
Recipe: (Percent, Batch)
A.P. Green 32.0 48.00 GoldArt 37.0 55.50 Ball clay 21.0 31.50 Custer feldspar 4.0 6.00 Redart 6.0 9.00 ----- -------- Totals: 100.0 150.00
Also add:
Grog 5.0 7.50
Comments:
Recipe: (Percent, Batch)
GoldArt 65.0 65.00 A.P. Green 13.0 13.00 Ball clay 13.0 13.00 Custer feldspar 9.0 9.00 ----- -------- Totals: 100.0 100.00
Also add:
grog 6.0 6.00
Comments:
Recipe: (Percent, Batch)
A.P. Green 47.5 47.00 GoldArt 23.2 23.00 Kentucky OM #4 20.2 20.00 Redart 5.1 5.00 Feldspar 4.0 4.00 ----- -------- Totals: 100.0 99.00
Also add:
grog 10.1 10.00
Comments:
From Scott Goldberg.
Recipe: (Percent, Batch)
Foundry Hill Creme 40.0 40.00 Tile 6 clay 20.0 20.00 Kentucky OM #4 20.0 20.00 Custer feldspar 15.0 15.00 Flint 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Foundry Hill Creme 42.0 42.00 Tile 6 clay 21.0 21.00 Ball clay 16.0 16.00 Pyrophyllite 16.0 16.00 Custer feldspar 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
Variations -- add extra fine grog 5
Recipe: (Percent, Batch)
Kaolin 25.0 40.00 Fire clay 12.5 20.00 Lincoln 37.5 60.00 Kentucky OM #4 12.5 20.00 Newman Red 6.3 10.00 Custer feldspar 6.3 10.00 ----- -------- Totals: 100.0 160.00
Also add:
Mullite 6.3 10.00
Comments:
From Ted Adler. Wood-salt-soda body. Dense.
Recipe: (Percent, Batch)
Hawthorne Bond 40.0 40.00 Ball clay 20.0 20.00 GoldArt 20.0 20.00 Silica 8.0 8.00 Custer feldspar 12.0 12.00 ----- -------- Totals: 100.0 100.00
Comments:
From Pete Pinnell, Clay Times Jan/Feb 2010 p.17. Suggests grog at the coarseness of choice and to taste - 5% for throwing, up to 20% for large, thick sculpture. Suggests 100 mesh mullite from Kyanite Mining for fine grog. Add 5% Redart for a toastier color.
Recipe: (Percent, Batch)
Hawthorne Bond 40.0 40.00 Ball clay 20.0 20.00 Tile 6 clay 15.0 15.00 Silica 10.0 10.00 Custer feldspar 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
From Pete Pinnell, Clay Times Jan/Feb 2010 p.19. Suggests grog at the coarseness of choice and to taste - 5% for throwing, up to 20% for large, thick sculpture. Suggests 100 mesh mullite from Kyanite Mining for fine grog. Add 5% Redart for a toastier color.
Recipe: (Percent, Batch)
GoldArt 55.6 50.00 Tennessee ball clay 27.8 25.00 Custer feldspar 11.1 10.00 Redart 5.6 5.00 ----- -------- Totals: 100.0 90.00
Comments:
Variations -- add sand or grog to taste
Recipe: (Percent, Batch)
GoldArt 65.0 65.00 Fire clay 13.0 13.00 Ball clay 13.0 13.00 Custer feldspar 9.0 9.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.5 1.50 Grog, fine 5.0 5.00
Comments:
Platic stoneware. Toasty orange-brown in reduction.
Recipe: (Percent, Batch)
Tile 6 clay 22.0 33.00 EPK 22.0 33.00 GoldArt 16.0 24.00 XX Sagger 16.0 24.00 Custer feldspar 14.0 21.00 Ball clay 10.0 15.00 ----- -------- Totals: 100.0 150.00
Also add:
Molochite 2.0 3.00
Comments:
Recipe: (Percent, Batch)
XX Sagger 15.8 15.00 EPK 13.7 13.00 Tennessee ball clay 12.6 12.00 Tile 6 clay 26.3 25.00 Kaopaque 10.5 10.00 Custer feldspar 10.5 10.00 Flint 10.5 10.00 ----- -------- Totals: 100.0 95.00
Also add:
Molochite 8.4 8.00 Macaloid 1.1 1.00
Comments:
Creamy in oxidation - about the color of raw EPK.
Recipe: (Percent, Batch)
A.P. Green 22.0 22.00 GoldArt 33.0 33.00 EPK 17.0 17.00 XX Sagger 17.0 17.00 Feldspar 11.0 11.00 ----- -------- Totals: 100.0 100.00
Also add:
Molochite 11.0 11.00 Bentonite 2.0 2.00
Comments:
yellowish in oxidation. Darker than Nelson, Woodman, or VC Off-white.
Recipe: (Percent, Batch)
Custer feldspar 10.0 10.00 Tile 6 clay 25.0 25.00 XX Sagger 30.0 30.00 Kentucky OM #4 20.0 20.00 Flint 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
creamy in oxidation- about the color of raw EPK
Recipe: (Percent, Batch)
Tile 6 clay 23.2 23.00 EPK 23.2 23.00 GoldArt 17.2 17.00 Pine Lake 17.2 17.00 Custer feldspar 14.1 14.00 Flint 5.1 5.00 ----- -------- Totals: 100.0 99.00
Also add:
Molochite 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Tile 6 clay 11.6 20.00 EPK 11.6 20.00 XX Sagger 5.8 10.00 GoldArt 8.7 15.00 A.P. Green 8.7 15.00 Custer feldspar 7.0 12.00 Flint 46.5 80.00 ----- -------- Totals: 100.0 172.00
Also add:
Molochite 2.3 4.00
Comments:
Creamy in oxidation - about the color of raw EPK. Tested by Sandy Lance.
Recipe: (Percent, Batch)
Nepheline syenite 25.0 25.00 Cedar Hts Stoneware 10.0 10.00 Fireclay 15.0 15.00 EPK 30.0 30.00 XX Sagger 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Clay Times Jan/Feb 08 article on wood-fire. It would be crazy to use 25% neph sy as a body flux. It will badly defloccuate the clay and make it thixotropic. Consider using spar instead, or Pete Pinnell's suggestion for mid-range: five or six parts spar to one part talc as a flux.
Recipe: (Percent, Batch)
A.P. Green 33.3 45.00 XX Sagger 25.9 35.00 Tile 6 clay 14.8 20.00 EPK 18.5 25.00 Custer feldspar 7.4 10.00 ----- -------- Totals: 100.0 135.00
Also add:
Kyanite 7.4 10.00 grog 14.8 20.00
Comments:
From UF alum Nancy Barbour. A pale buff clay that flashes a bit orange.
Recipe: (Percent, Batch)
Hawthorne Bond 15.0 15.00 Fire clay 10.0 10.00 GoldArt 40.0 40.00 Ball clay 15.0 15.00 Flint 10.0 10.00 Custer feldspar 7.0 7.00 Redart 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Grog 8.0 8.00
Comments:
From Ceramic Industry Oct. 2005. www.ceramicindustry.com Jeff Zamek. Second fire clay addition is Lincoln fireclay. Medium brown in reduction, tan in oxidation. Fired shrinkage 12% at cone 6, 12.5% at come 10. Absorption 2.6% cone 6/0.5% at cone 9.
Recipe: (Percent, Batch)
Silica 32.0 32.00 Whiting 20.0 20.00 G-200 Feldspar 33.0 33.00 EPK 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
Both of these glazes do very well with colorants and perform equally well in oxidation or reduction. submitted by: Christine Winokur e-mail: Kickwheel@aol.com
Recipe: (Percent, Batch)
Whiting 9.0 9.00 Zinc oxide 7.0 7.00 Cornwall Stone 79.0 79.00 EPK 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
I've been using Coile Hooven's recipe for clear glaze for porcelain with good results. It doesn't crackle/craze (eye of the beholder thing) and can run the gamut from non-milky matte at lower temp to a nice high gloss at c.10-11. (The recipe lists it as Cone 10 Clear) (use a mortar & pestle to grind Cornwall stone before mixing) I use this over a porcelain throwing body from Val Cushing's notebook (published and distributed during Summer Class 1993): GROLLEG 55 (1 full bag) KONA 4 SPAR 20 FLINT 12 PYRAX 13 MACALOID 2 (or Bentonite: let sit with water in mixer overnight. Add dry mix next day) As with any porcelain, the longer it ages, the better. I make mine ideally 6 months in advance, wrapped a la the Alfred Roll in 35# batches. Hope this helps. Tricia CHATARY@HOPE.CIT.HOPE.EDU
Recipe: (Percent, Batch)
Kona Feldspar 36.4 36.36 Whiting 20.5 20.45 EPK 11.4 11.36 Silica 31.8 31.82 ----- -------- Totals: 100.0 99.99
Comments:
This glaze does very well with colorants and performs equally well in oxidation or reduction. submitted by: Christine Winokur e-mail: Kickwheel@aol.com
Recipe: (Percent, Batch)
Flint 27.3 27.30 EPK 18.2 18.20 Nepheline syenite 18.2 18.20 Bone ash 9.1 9.10 Dolomite 9.1 9.10 Gerstley borate 9.1 9.10 Talc 9.1 9.10 ----- -------- Totals: 100.0 100.10
Comments:
By itself without colorants, this glaze is fairly clear, not perfectly transparent at cone 6-7 but becoming glass like at 8-9. It is smooth to the touch, pleasing to feel. Very tolerant and forgiving. It is somewhat uninteresting by itself although it is as stable as you can imagine. Add colorants for the real action! *How long have you been using this glaze? 8-10 years *Where is it used? Bob Kavanagh's studio. *Where did this recipe come from? I developed it over a few years. *What do you like most about this glaze? It is stable, adaptable, accepts diverse colors well, applies easily, is virtually fault free - a good friend. *Does this glaze tend to craze/crawl/pinhole/etc.? With the majolica, it may crawl if the glaze is applied VERY thickly. *How do different firing temperatures/atmospheres affect the glaze? It may be used in reduction as well as in oxidation, although I now use it only in oxidation. I developed it while I was working in a reducing atmosphere. The differences between oxidation and reduction lie in the clarity of the glaze (much clearer in oxidation) and of course the impact of reduction on iron bearing oxides. *How does the glaze behave on different clay bodies? Very adaptable to stoneware, porcelain, rough, smooth, etc. *What consistency should the glaze be for pouring/dipping? Dip hand into bucket; can hardly see skin under glaze on hand: thick cream. *How thickly should the glaze be applied to the pot? Varies with oxide addition. Likes to be moderately thick for richest results. *How does this glaze interact with other glazes? I had not been happy with combining it with others, so I stopped. It can be layered with itself with different colorants in each layer. *What is your kiln type and size? 10 cubic foot, Tucker's Cone Art, electric *How do you typically fire? 0 to 212 in two hours: hold 10 minutes. 212 to 1040 at about 300 degrees an hour. very slowly from 1040 to 1070. as quickly as possible from 1070 to 2100. about 150 degrees an hour until cone 7-8. *Do you experience problems with the raw glaze? no problems *GlazeBase recipe* Submitted by: bob kavanagh (bkav@vax2.concordia.ca) -------------------------------------------------------------------- ---- Variations -- *Variations: berry rust: 10% red iron oxide deep river red: 20% RIO midnight blue: 5% cobalt carb., 2% RIO, 1% copper carb. silver yellow: 6% vanadium oxide, touch of rutile majolica: 7% tin oxide
Recipe: (Percent, Batch)
Cornwall Stone 85.0 85.00 Whiting 10.0 10.00 Magnesium carbonate 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
cone 10 clear matt. This is a wonderful, buttery smooth clear glaze, as matt as you can probably get for a clear. I have a couple of others that I recently designed but I don't have them in my database yet. Try this one. I think you'll like it. Unless you put opacifiers in it it should stay transparent with the additions of most colorants. Regards, June june perry
Recipe: (Percent, Batch)
Custer feldspar 50.0 50.00 Whiting 6.0 6.00 EPK 4.0 4.00 Barium carbonate 12.0 12.00 Flint 28.0 28.00 ----- -------- Totals: 100.0 100.00
Comments:
Variations -- Turquoise celadon with 1 to 2% Red Iron Oxide.
Recipe: (Percent, Batch)
Cornwall Stone 85.0 85.00 Whiting 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
A traditional crackle recipe for cone 9-10 Apply on the thickish side. She can try this and also try another test substituting a soda feldspar like Kona F4 or Nepheline Syenite, for the Cornwall stone ,if the glaze as given, is immature at cone 8. She can then do a wet mix of equal parts of each test recipe. june perry
Recipe: (Percent, Batch)
Cornwall Stone 42.8 42.79 Soda feldspar 42.8 42.79 Whiting 14.4 14.42 ----- -------- Totals: 100.0 100.00
Comments:
She can try this and also try another test substituting a soda feldspar like Kona F4 or Nepheline Syenite, for the Cornwall stone ,if the glaze as given, is immature at cone 8. She can then do a wet mix of equal parts of each test recipe. Regards, June perry june
Recipe: (Percent, Batch)
Custer feldspar 34.4 34.41 Flint 26.9 26.88 Whiting 21.5 21.51 Kaolin 17.2 17.20 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.1 1.08
Comments:
I am having a problem with my clear liner. On all our cone 10+ firings, in ox or red., we have a great clear. In salt fire, however, if the vapor hits the inside of, say a bowl, or if the clear is on the outside of the pot, then it crazes horribly. If we prevent the vapor from hitting the surface of the clear, it does well. (or if it is very thin on the outside of the pot). This glaze does very well in our wood fire kiln-no crazing at all. It will be matt if it doesn't get a good cone 10 if that helps any. Pat Chesney Pat-Chesney@easy.com Waco, Texas
Recipe: (Percent, Batch)
Potash feldspar 26.6 778.40 Whiting 20.6 603.00 EPK 19.5 570.50 Flint (silica) 32.2 940.80 Bentonite 1.0 28.90 ----- -------- Totals: 100.0 2921.60
Comments:
This is an excellent transparent/clear glaze that is very hard and durable. I have used it over colored slip, with sgraffito into the slip and with oxides and stains brushed over it and the decorations don't move. This glaze can be brought to the VERY edge of the foot without moving. I use it inside of all my functional work and when decorating with colored slips I use it over the whole surface of the pot. It is an excellent glaze that will always perform well especially when you are in a hurry to get things fired. No surprises. Food-safe. *Variations: Can add 1/4 % Copper Carbonate for Light Green in Oxidation ^9-10 firing. *How long have you been using this glaze? Almost 20 years *Where is it used? In my studio *Where did this recipe come from? I got this recipe from Kieth Campbell from Ontario, Canada but believe that it is an Alfred Univ. glaze originally *What do you like most about this glaze? There are no surprises and I can count on it every time. Its food safe. *Is this glaze reliable? Very *Does this glaze tend to craze/crawl/pinhole/etc.? Crazes if applied TOO THICK. *How do different firing temperatures/atmospheres affect the glaze? Electric/Oxidation or Gas fired/Reduction or neutral fire are all equally as good. *How does the glaze behave on different clay bodies? On porcelain and white stoneware it is clear white. On buff and or red bodies it goes somewhat grey because of the iron in the clays. Very pleasent on all clays. I have tested and used on all the above clays. *What consistency should the glaze be for pouring/dipping? The consistancy of my glazes is like homo milk. The normal consistancy. I dip to the count of 5 - 10. *How thickly should the glaze be applied to the pot? Normal. I spray this glaze as well to 1/16th of an inch or better. *How does this glaze interact with other glazes? I like it the way it is for my work. Test your glazes and see what happens. I have sprayed other glazes on rims etc. and all worked fine. *What is your kiln type and size? 30 cu.ft. downdraft gas kiln. *How do you typically fire? Heating...pilots (4) on over night or at least a 9 hour period. Burners (4) on low over night or till cone 07 is down. Turn up the burners to 1/2 way mid. reduce kiln for 30 to 45 mins. depending on the weather. Cut the reduction (open dampers to almost open and a light reduction till cone 10 falls. Clear kiln, shut off and seal. Slow 36 hour cool before cracking the door and work comes out in about 48 hours. *Do you experience problems with the raw glaze? NO....this glaze can be stirred easily even after 8 weeks of non use and stays stirred for long periods of time while glazing. I make a large green garbage pail of my well used glazes and they last me for a yr. or more. No smells etc. *What is your water pH? City water. *Any other comments? Try this glaze...it will be a main stay in your studio. ;>}}} *GlazeBase recipe* Submitted by: Peggy Heer / Heer Pottery (p4337@connect.ab.ca) Ice Cream Flavor: Chocolate -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
Kingman feldspar 27.5 27.50 Kentucky ball clay 20.1 20.10 Whiting 19.6 19.60 Silica 32.8 32.80 ----- -------- Totals: 100.0 100.00
Comments:
This glaze is wonderful over porcelain. Clear with maybe a tint of green if your clay is dark. Made up with OM 4 instead it is perfectly clear. Does not crackle unless pretty thick. Can be used very thinly, covers well. Real good with colorants, either under or over. Copper goes red. Works also with Custer. submitted by: Eleanora Eden e-mail: eden@SOVER.NET
Recipe: (Percent, Batch)
Potash feldspar 30.0 30.00 Ball clay 20.0 20.00 Whiting 20.0 20.00 Flint 30.0 30.00 ----- -------- Totals: 100.0 100.00
Comments:
Variations -- try 5% Gerstley Borate or Frit 3124 if not clear enough
Recipe: (Percent, Batch)
Soda feldspar 26.0 26.00 Whiting 20.0 20.00 Kaolin 20.0 20.00 Silica 32.0 32.00 Zinc oxide 2.0 2.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Potash feldspar 32.9 40.00 Whiting 12.3 15.00 Dolomite 5.8 7.00 Gerstley borate 6.6 8.00 Zinc oxide 4.9 6.00 Ball clay 19.8 24.00 Flint 17.7 21.50 ----- -------- Totals: 100.0 121.50
Comments:
+ 10% rutile = gaudy blue. From Sylvie Granatelli via Susan Filley.
Recipe: (Percent, Batch)
Kona F-4 feldspar 40.6 40.70 Colemanite 12.7 12.75 Barium carbonate 4.2 4.25 Whiting 8.5 8.50 Flint 28.9 29.00 Grolleg 2.6 2.60 Frit 3110 2.0 2.00 Zinc oxide 0.5 0.50 ----- -------- Totals: 100.0 100.30
Comments:
From Sylvie Granatelli's web site. Use very thin.
Recipe: (Percent, Batch)
Kona F-4 feldspar 34.0 34.00 Gerstley borate 17.3 17.30 Dolomite 0.1 0.06 Whiting 6.6 6.60 Barium carbonate 4.4 4.40 Zinc oxide 0.5 0.50 Silica 30.4 30.40 Kaolin - theoretical 6.8 6.80 ----- -------- Totals: 100.0 100.06
Comments:
From Sylvie Granatelli's web site. Use very thin.
Recipe: (Percent, Batch)
Custer feldspar 20.0 20.00 Nepheline syenite 5.0 5.00 Whiting 25.0 25.00 EPK 20.0 20.00 Flint 30.0 30.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
Dependable clear. UF shop glaze.
Recipe: (Percent, Batch)
Kona F-4 feldspar 36.9 36.90 Gerstley borate 12.0 12.00 Barium carbonate 4.6 4.60 Whiting 7.8 7.80 Flint 26.7 26.70 Grolleg 9.2 9.20 Frit 3110 2.8 2.80 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 1.0 1.00
Comments:
From Sam Chung. Works in soda. Variations -- 3% Barnard clay for blue celadon.
Recipe: (Percent, Batch)
Nepheline syenite 20.4 19.30 Dolomite 0.2 0.20 Wollastonite 8.1 7.70 Strontium carbonate 3.6 3.40 Silica 25.3 23.90 Kaolin - theoretical 5.9 5.60 Frit 3124 36.5 34.50 ----- -------- Totals: 100.0 94.60
Also add:
Tin oxide 1.1 1.00
Comments:
From Sam Chung. Variations -- 3% Barnard clay for blue celadon.
Recipe: (Percent, Batch)
Cornwall Stone 45.0 45.05 China clay 19.8 19.82 Dolomite 20.7 20.72 Whiting 5.4 5.41 Talc 9.0 9.01 ----- -------- Totals: 100.0 100.01
Comments:
If an area is double dipped it comes out whiter so it is sensitive to thickness and drips or runs want to be avoided unless the variation in thickness and colour suits your pot. If I fire above cone 8 it progresses to being shiny. I think it would be the same in reduction. David HewittDavid Hewitt David Hewitt Pottery Caerleon, Tel:- 01633 420647 7 Fairfield Road, Caerleon, Newport, South Wales, UK. URL http://digitalfire.com/magic/hewitt.htm
Recipe: (Percent, Batch)
Custer feldspar 39.9 39.92 Whiting 16.4 16.45 EPK Kaolin 11.8 11.80 Flint 31.8 31.84 ----- -------- Totals: 100.0 100.01
Also add:
Bentonite 1.0 1.00 Epsom salts 0.1 0.10
Comments:
Revised by adding more flint to make a slightly lower thermal expansion and stop crazing. This was the best clear I found in testing about 9 or 10 clear recipes. Many were good clears but had a slight celadon tinge. This one is stable, clear and light grey over white stoneware with no appreciable greenish hue. No crazing over the shop clay bodies (commercially available west coast stoneware clays). RB SDSU 1994 *How long have you been using this glaze? two years *Where is it used? San Diego State University *Where did this recipe come from? originally Meloy Clear (origin unknown, maybe Pete Meloy?) Looks to be a variation on the classic 4-3-2-1 Leach clear. *What do you like most about this glaze? very clear, applies well, few glaze faults, cheap to make, non-toxic. *Is this glaze reliable? yes *Does this glaze tend to craze/crawl/pinhole/etc.? no *How do different firing temperatures/atmospheres affect the glaze? may work as low as cone 6 but with reduced clarity. *How does the glaze behave on different clay bodies? no problems *What consistency should the glaze be for pouring/dipping? average consistency. *How thickly should the glaze be applied to the pot? thin to medium thickness for best clarity, thinner on porcelain. *How does this glaze interact with other glazes? works well with most other stoneware glazes. *What is your kiln type and size? Alpine 30 cu. ft. updraft gas kiln *How do you typically fire? 12-16 hour heating, reduction from cone 06 to cone 8, more neutral atmosphere after that. no soak. 24-36 hour cooling. *Do you experience problems with the raw glaze? no *Any other comments? Unity Formula for MELOY CLEAR revised- 0.188 K2O 0.485 Al2O3 4.725 SiO2 0.083 Na2O 0.004 TiO2 0.729 CaO 9.7:1 Si:Al Ratio Percentage Analysis- 71.44 % SiO2 12.43 % Al2O3 4.46 % K2O 1.28 % Na2O 10.30 % CaO 0.08 % TiO2 *GlazeBase recipe* Submitted by: Richard Burkett (richard.burkett@sdsu.edu) Ice Cream Flavor: Ben & Jerry's Cranberry Orange sorbet -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
EPK 15.4 15.38 Whiting 15.4 15.38 Custer feldspar 30.8 30.77 Silica 38.5 38.46 ----- -------- Totals: 100.0 99.99
Comments:
Recipe: (Percent, Batch)
Potash feldspar 25.0 25.00 Whiting 20.0 20.00 Grolleg 20.0 20.00 Silica 35.0 35.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Custer spar 38.4 39.00 Whiting 17.2 17.50 Flint 29.6 30.00 Grolleg 8.4 8.50 Gerstley borate 4.9 5.00 Bone ash 1.5 1.50 ----- -------- Totals: 100.0 101.50
Also add:
Tin oxide 1.0 1.00
Comments:
Pete Pinnell. Best on porcelain. Trail Strontium Matt: Green over it for spectacular green and flashing red, or apply a thin layer over Pete's Cranberry for a nice broken purple.
Recipe: (Percent, Batch)
Custer feldspar 28.0 28.00 Grolleg 20.0 20.00 Flint 26.0 26.00 Wollastonite 18.0 18.00 Strontium carbonate 8.0 8.00 ----- -------- Totals: 100.0 100.00
Comments:
From Peter Beasecker. Variations -- Sam's Celadon: + blackbird 3% + Tin ox. 2%
Recipe: (Percent, Batch)
Custer feldspar 28.9 28.90 Kaolin - theoretical 16.4 16.40 Silica 32.7 32.70 Whiting 14.4 14.40 Strontium carbonate 7.5 7.50 ----- -------- Totals: 100.0 99.90
Comments:
From Peter Beasecker. Variations -- Sam's Celadon: + blackbird 3% + Tin ox. 2%
Recipe: (Percent, Batch)
Potash feldspar 24.8 25.00 Whiting 24.8 25.00 Kaolin 17.8 18.00 Silica 31.7 32.00 tin 1.0 1.00 ----- -------- Totals: 100.0 101.00
Comments:
Variations -- add 5% Gerstley Borate?
Recipe: (Percent, Batch)
Potash feldspar 26.6 26.60 Whiting 20.6 20.60 EPK 19.5 19.50 Flint (silica) 32.2 32.20 Bentonite 1.0 1.00 ----- -------- Totals: 100.0 99.90
Comments:
This is an excellent transparent/clear glaze that is very hard and durable. I have used it over colored slip, with sgraffito into the slip and with oxides and stains brushed over it and the decorations don't move. This glaze can be brought to the VERY edge of the foot without moving. I use it inside of all my functional work and when decorating with colored slips I use it over the whole surface of the pot. It is an excellent glaze that will always perform well especially when you are in a hurry to get things fired. No surprises. Food-safe. *Variations: Can add 1/4 % Copper Carbonate for Light Green in Oxidation ^9-10 firing. *How long have you been using this glaze? Almost 20 years *Where is it used? In my studio *Where did this recipe come from? I got this recipe from Kieth Campbell from Ontario, Canada but believe that it is an Alfred Univ. glaze originally *What do you like most about this glaze? There are no surprises and I can count on it every time. Its food safe. *Is this glaze reliable? Very *Does this glaze tend to craze/crawl/pinhole/etc.? Crazes if applied TOO THICK. *How do different firing temperatures/atmospheres affect the glaze? Electric/Oxidation or Gas fired/Reduction or neutral fire are all equally as good. *How does the glaze behave on different clay bodies? On porcelain and white stoneware it is clear white. On buff and or red bodies it goes somewhat grey because of the iron in the clays. Very pleasent on all clays. I have tested and used on all the above clays. *What consistency should the glaze be for pouring/dipping? The consistancy of my glazes is like homo milk. The normal consistancy. I dip to the count of 5 - 10. *How thickly should the glaze be applied to the pot? Normal. I spray this glaze as well to 1/16th of an inch or better. *How does this glaze interact with other glazes? I like it the way it is for my work. Test your glazes and see what happens. I have sprayed other glazes on rims etc. and all worked fine. *What is your kiln type and size? 30 cu.ft. downdraft gas kiln. *How do you typically fire? Heating...pilots (4) on over night or at least a 9 hour period. Burners (4) on low over night or till cone 07 is down. Turn up the burners to 1/2 way mid. reduce kiln for 30 to 45 mins. depending on the weather. Cut the reduction (open dampers to almost open and a light reduction till cone 10 falls. Clear kiln, shut off and seal. Slow 36 hour cool before cracking the door and work comes out in about 48 hours. *Do you experience problems with the raw glaze? NO....this glaze can be stirred easily even after 8 weeks of non use and stays stirred for long periods of time while glazing. I make a large green garbage pail of my well used glazes and they last me for a yr. or more. No smells etc. *What is your water pH? City water. *Any other comments? Try this glaze...it will be a main stay in your studio. ;>}}} *GlazeBase recipe* Submitted by: Peggy Heer / Heer Pottery (p4337@connect.ab.ca) Ice Cream Flavor: Chocolate -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
Nepheline syenite 70.0 70.00 Whiting 5.0 5.00 Gerstley borate 2.0 2.00 Petalite 15.0 15.00 Clay 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Rutile 2.0 2.00 Bentonite 2.0 2.00
Comments:
Notes from this glaze as Reitz Green Matt: Thin = dark almost black; thick = smooth yellow green Amazing glaze! Sometimes shivers. Glaze Type: Na Ca Feldspathic. Opacity: Semi-opaque. Firing type: Ox or Red From Val Cushing. VC ed Pete Pinnell: forest green that breaks with just a hint of blue at edges. Additional notes from the same glaze called Cobalt Green (from CM): Nice, rich, appealing. Unlike any green you've ever seen. Breaks white over raised decoration. Viscosity is important as glaze varies with thickness. Thick=bright green, medium=dark green, thin=grey-blue. I use Dave's porcelain from Laguna. Dean McRaineVariations -- 1% Cobalt=soft medium blue; 3% Rutile=soft grey blue.
Recipe: (Percent, Batch)
K-200 Feldspar 44.0 44.00 EPK 10.0 10.00 Whiting 18.0 18.00 Flint 28.0 28.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 1.0 1.00
Comments:
This is a 4,3,2,1, slightly revised. The original Tom Coleman Green had 0.25% Chrome oxide to get that green green celadon.
Recipe: (Percent, Batch)
Barium carbonate 5.0 5.00 Dolomite 5.0 5.00 Gerstley borate 5.0 5.00 Whiting 8.0 8.00 Zinc oxide 2.5 2.50 Custer feldspar 49.7 49.80 Silica (200m) 24.9 24.90 ----- -------- Totals: 100.0 100.20
Also add:
Tin oxide 1.0 1.00 Cobalt carbonate 0.2 0.20 Copper carbonate 2.0 2.00
Comments:
I've used the following Coleman Purple (Cone 10, reduction) with good results. It came from the September 1984 Ceramics Monthly. In addition to this glaze, there are other excellent glazes to experiment with. Try the Oxblood Red Glaze. submitted by: Randy Brodnax e-mail: RCB3431@dcccd.edu
Recipe: (Percent, Batch)
Ferro frit 3269 9.9 9.90 Lithium carbonate 4.6 4.60 Calcined kaolin 16.0 16.00 EPK 8.0 8.00 Silica 61.5 61.50 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
add CMC 1 tsp (Ferro frit 3269 substituted directly for Pemco 25) At Cone 9 it looks like the frosting on a glazed donut with only a few bubbles. It has not moved or melted at all except for tiny areas where it looks very nice. I was told the Frit was a direct substitute for the Pemco #25 in the original recipe but this must have been wrong. Any help Thanks Chris chris campbell
Recipe: (Percent, Batch)
Cornwall Stone 63.8 63.81 Gerstley borate 14.3 14.30 Silica (A-25 best) 7.6 7.60 Whiting 7.6 7.60 EPK 4.8 4.80 Zinc oxide 1.9 1.90 ----- -------- Totals: 100.0 100.01
Also add:
Cobalt carbonate 0.5 0.50 Rutile (powdered) 3.2 3.20 Ilmenite (325 mesh best) 2.0 2.00
Comments:
(Mile Hi in Denver has Ilmenite). Likes a fast cooling to develop that electric blue. One dip gives you brown, two dips a deep blue. Tends to break on ridges. Where real heavy you get white. Flows quite a bit, especially combined with other glazes. Watch your bottom feet,try to give it a good foot or a strong ridge to stop flow. Tapering the bottom edge with a straight edge helps too. Otherwise your shelf will be a beautiful shade of blue. If thick, tends to pinhole, likes to dry and be rubbed out before firing. Tempermental glaze---can crawl just enough to make you crazy generally under rims and on the inside of rims....probably is thicker there and shrinks when drying. To Mix, we've found it best to dissolve the Cornwall first and let set a bit, then add everything else. Screen through a 40 once and an 80mesh twice for finest crystalization. This is a compilation of several background messages re: the Conrad Moonlight. We use Conrads Moonlight (which was discussed about 6 months ago here) with about 1/2%cobalt Carb. added. It's a cone 10 glaze. I first started using it in electric firing, and a year ago switched to gas. At first in the gas, it was muddier and tended toward rutile blue-green. Then, experimenting, we cooled the kiln faster to match the curve of the electrics. Voila, nice sharp crystals and blue. It also seems to be quite sensitive to temperature, over fire it and it grabs iron from anywhere and goes blue green or brownish. I also might note that it is quite sensitive to application. It must go on thick to develop a good blue. (even sometimes giving almost purple). Thick in the bucket, double dip as soon as the sheen leaves, dry completely, then rub lightly everywhere and especially on compund curves. This is a Cornwall recipe and tends to crawl if not thorughly bonded to the clay surface. The thickness required doesn't help. Don't know what it might do at c6 but if you can get it there, the above notes might help. One note, I mentioned that it's sensitive to temp. It's happiest between 9-1/2 and 10-1/2. Also we use it on a white stoneware. On iron body clays, it tends toward blue green or brown-green...not too pretty. Joyce brought up a good pointThe rutile blue Moonlight from Conrad (G375) is r understand, most rutile blues are. The way we work around this is to provide a ridge at the foot and, when Betsy applies the glaze, she takes a stainless rib and carves a taper into the ridge. Sounds time consuming, and is, but it goes pretty fast after you've done (not had) a few. The main time we lose pieces from running now is where there's an overlap with another glaze, especially Temmoku. But by keeping it high on the pot, it can be controlled. Good Luck. It can be a fantastic rutile blue, best I've seen. I'll be off the list for a week, at Rosen, but will pull digests during the week. Tom Wirt Clay Coyote Pottery Hutchinson, MN claypot@hutchtel.net
Recipe: (Percent, Batch)
G-200 feldspar 48.4 45.00 Flint 12.9 12.00 EPK 10.8 10.00 Whiting 28.0 26.00 ----- -------- Totals: 100.0 93.00
Also add:
Bentonite 2.2 2.00 Titanium oxide 8.6 8.00 Cobalt carbonate 1.1 1.00
Comments:
From Robbie Lobell. Used on the outside of her flameware body. Variations -- Karen Karnes Grey/Black - instead of titanium, + 8 rutile and 8 manganese Karen Karnes Blue/Green - instead of titanium, + 8 rutile + cobalt carb 0.325 + copper 4 Robbie Lobell Gold - titanium 9
Recipe: (Percent, Batch)
G-200 feldspar 48.6 43.00 Flint 21.5 19.00 EPK 6.2 5.50 Talc 6.2 5.50 Whiting 7.3 6.50 Bone ash 10.2 9.00 ----- -------- Totals: 100.0 88.50
Also add:
Red iron oxide 10.7 9.50 Bentonite 2.3 2.00
Comments:
Glaze Robbie Lobell uses on her flameware body.
Recipe: (Percent, Batch)
----- -------- Totals: 0.0 0.00
Comments:
Recipe: (Percent, Batch)
Alberta slip 100.0 100.00 ----- -------- Totals: 100.0 100.00
Comments:
From Robbie Lobell. Used on her flameware body. Soda-fired. Variations -- Can substitute Albany slip or Sheffield Pottery Supply Albany substitute.
Recipe: (Percent, Batch)
Nepheline syenite 57.5 57.50 Barium carbonate 26.5 26.50 Kentucky OM #4 6.2 6.20 Flint 7.1 7.10 Lithium carbonate 2.7 2.70 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 2.7 2.70
Comments:
from H.S. days at Gould Academy I'd had this glaze mixed up for years and retried it. Very dry matt deep turquoise blue/green going to teal where thick. Beige where thin. Didn't react well to CB slip Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Barium carbonate 35.0 35.00 Calcium carbonate 7.0 7.00 Custer feldspar 45.0 45.00 Kaolin 6.0 6.00 Silica 7.0 7.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 4.0 4.00
Comments:
Here is a salt-fire glaze I plan to use when I get my Geil kiln with portholes for soda/salt firing. This came with a video I purchased made by Gordon Hutchens, who is beyond excellent. I think it's cricket to share since it's sold for public consumption. Gordon's video on Raku Firing, and his two on Soda/Salt firing are superb. Along with many posts of wise, thoughtful guidance from Clayarters plus Jack Troy's book (through the library) I'm gonna be ready when that kiln gets here...a long time from now. I can't believe the time some of you took in your responses. I can be grateful, though. Thank you. Joyce joyce leeIn the Mojave after a wet, cold, snowy day crossing the Tehachapi Mts. to Bakersfield. Well, no, not on foot...
Recipe: (Percent, Batch)
Nepheline syenite 12.5 12.50 Custer feldspar 22.4 22.44 Silica 32.9 32.94 Colemanite 15.8 15.82 Zinc oxide 9.3 9.28 Barium carbonate 7.0 7.03 ----- -------- Totals: 100.0 100.01
Also add:
Copper carbonate 2.2 2.24 Tin oxide 1.7 1.68
Comments:
Glazes containing barium may not be safe for ware intended for use with food - test them for barium release. submitted by: June M. Perry e-mail: GURUSHAKTI@aol.com
Recipe: (Percent, Batch)
Whiting 14.1 14.10 Nepheline syenite 44.4 44.40 Frit 3134 13.1 13.10 Kaolin 3.0 3.00 Silica 25.3 25.30 ----- -------- Totals: 100.0 99.90
Also add:
Copper carbonate 0.1 0.10 Tin oxide 1.0 1.00
Comments:
From Ceramics Mo Oct. 2010 article on Peach Bloom glazes by John Britt
Recipe: (Percent, Batch)
Dolomite 12.0 12.00 Strontium carbonate 6.0 6.00 Whiting 8.0 8.00 Nepheline syenite 37.0 37.00 Kaolin 2.0 2.00 Flint 35.0 35.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 3.0 3.00 Copper carbonate 0.5 0.50
Comments:
The following two glazes are the copper red recipe's I've had the most success with from rafael molina-rodriguez (rafael molina-rodriguez)
Recipe: (Percent, Batch)
Dolomite 12.0 12.00 Strontium carbonate 6.0 6.00 Whiting 8.0 8.00 Nepheline syenite 37.0 37.00 Kaolin 2.0 2.00 Flint 35.0 35.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 3.0 3.00 Copper carbonate 0.5 0.50
Comments:
The following two glazes are the copper red recipe's I've had the most success with from rafael molina-rodriguez (rafael molina-rodriguez)
Recipe: (Percent, Batch)
Gerstley borate 9.1 9.10 Whiting 14.3 14.27 Nepheline syenite 44.3 44.26 Potash feldspar 6.2 6.20 Kaolin 2.6 2.59 Flint 23.6 23.58 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 0.4 0.41 Tin oxide 1.0 1.04
Comments:
The following two glazes are the copper red recipe's I've had the most success with from rafael molina-rodriguez (rafael molina-rodriguez)
Recipe: (Percent, Batch)
Custer feldspar 42.5 42.50 Silica 25.0 25.00 Colemanite 17.5 17.50 Whiting 2.5 2.50 Ferro 3134 10.0 10.00 Copper carbonate 1.0 1.00 Tin oxide 1.0 1.00 Red iron oxide 0.5 0.50 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.0 1.00
Comments:
This glaze is a very wonderful red, but like all reds, it's very temperamental. A heavy reduction at the end is recommended. Firing time should be between 12 and 20 hours. Not enough reduction during the firing will cause the glaze to be clear. *How long have you been using this glaze? I've used this glaze off and on for 2 years. *Where is it used? University of Houston *Where did this recipe come from? This could be a Carlton Ball glaze, but I'm not sure. *Is this glaze reliable? The firing process is what's difficult about this glaze. You should start reducing around cone 5 and do a heavy reduction at the end. *Does this glaze tend to craze/crawl/pinhole/etc.? You should make sure the surface of the pot is clean of dust. *How do different firing temperatures/atmospheres affect the glaze? Too muddy of a reduction will cause the copper to burn out. Too little will cause the glaze to run clear. *How does the glaze behave on different clay bodies? White or light bodies are best, but it does work on red clay bodies. *What consistency should the glaze be for pouring/dipping? Once you have mixed the glaze with water, you need to use it that day. A thick application is best. Dipped if possible. Once mixed the elements settle out and will not work if remixed. *How thickly should the glaze be applied to the pot? The thicker the better, but the glaze will run. *How does this glaze interact with other glazes? It works great with rutile glazes. *What is your kiln type and size? I used an updraft reduction kiln about 9 cubic feet. *How do you typically fire? I build temperature up to a cone 6 then reduce there for an hour, then go the rest of the way up reducing all the way. With a heavy reduction at the end. Then let it cool completely with all holes plugged and dampers shut tight. *Do you experience problems with the raw glaze? Keep materials dry until you are ready to use. It will not stay mixed and the chemicals alter if left wet for more than 48 hours. *GlazeBase recipe* Submitted by: Suzanne (SuzZim@swbell.com) -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
Gerstley borate 9.1 9.10 Whiting 14.3 14.30 Nepheline syenite 44.3 44.30 Potash feldspar 6.2 6.20 Kaolin 2.6 2.60 Flint 23.6 23.60 ----- -------- Totals: 100.0 100.10
Also add:
Copper carbonate 0.4 0.40 Tin oxide 1.0 1.00
Comments:
The following two glazes are the copper red recipe's I've had the most success with from rafael molina-rodriguez (rafael molina-rodriguez)
Recipe: (Percent, Batch)
Nepheline syenite 12.5 12.50 Custer feldspar 22.4 22.40 Silica 32.9 32.90 Colemanite 15.8 15.80 Zinc oxide 9.3 9.30 Barium carbonate 7.0 7.00 ----- -------- Totals: 100.0 99.90
Also add:
Copper carbonate 2.2 2.20 Tin oxide 1.7 1.70
Comments:
submitted by: June M. Perry e-mail: GURUSHAKTI@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 42.4 42.35 Whiting 10.5 10.46 Kaolin 2.0 2.04 Silica 22.7 22.70 Gerstley borate 13.3 13.27 Potash feldspar 9.2 9.18 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 1.7 1.70 Copper carbonate 0.3 0.26
Comments:
One of the 'Copper Reds' that I have used most consistantly with good results, is one which from my reading seems to be credited to Both Tom Coleman and Brisson. I fire this glaze to cone 10 just tipping. If over-fired the red starts to burn out. The glaze is a strong RED, which under heavy reduction and where it is thick tends toward an oil spot effect. Be careful with thick pplication at the bottom of the piece, as there is a fine point at the end of the firing where the glaze tends to run. Presistance with this glaze is well worthwhile. submitted by: David Stuchbery. e-mail: stuchber@redgum.bendigo.latrobe.edu.au
Recipe: (Percent, Batch)
Silica 36.0 36.00 Nepheline syenite 20.4 20.43 Custer feldspar 15.6 15.57 Whiting 15.7 15.73 Colemanite 10.8 10.80 EPK 1.5 1.48 ----- -------- Totals: 100.0 100.01
Also add:
Tin oxide 1.7 1.72 Copper carbonate 0.4 0.43
Comments:
from David Cuzick- (Silica -the finer the better to reduce crazing) note the very small percentage of copper carb. this glaze does not need too much reduction, it is a purple red. The formulation may need adjusting for some clay bodies because of crazing. David Cuzick Claycuzian@aol.com
Recipe: (Percent, Batch)
Zinc oxide (calcined) 4.6 4.60 Talc 3.6 3.60 Whiting 13.2 13.20 Ferro frit 3134 11.0 11.00 Kona F-4 feldspar 46.2 46.20 Silica 16.2 16.20 EPK 5.3 5.30 ----- -------- Totals: 100.0 100.10
Also add:
Copper carbonate 0.7 0.70 Tin oxide 1.0 1.00 Bentonite 1.5 1.50
Comments:
Oxblood needs to be thick mp. Begin reduction at cone 012 fairly heavy and then go into moderate reduction after cone 05 drops. Continue moderate to light reduction until cone 10 then a brief oxidation period of about 10 minutes. If you over-reduce it will be liver brown and under reduced will be celadon. One solution to a problem (uneven, spotty reduction and under reduced)we had was to turn down the gas and air. To slow it down and reduce at the above schedule. We were firing in an Alpine updraft with blowers and just running the same schedule as the people who fired before us. 4 pounds pressure (natural gas) with the blowers at 70. Something like that. But we reduced the gas and the air and the firing was 100% better. No more spotty reduction or unreduced pots. (I kind of miss those unwanted interesting results though.) submitted by: John Britt e-mail: claydude@erinet.com
Recipe: (Percent, Batch)
Gerstley borate 10.7 10.70 Whiting 10.7 10.70 NC-4 feldspar 40.3 40.30 Nepheline syenite 14.8 14.80 Spodumene 6.7 6.70 Silica 16.8 16.80 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 1.0 1.00 Copper carbonate 0.3 0.30 Red iron oxide 0.1 0.10
Comments:
From Ceramics Mo Oct. 2010 article on Peach Bloom glazes by John Britt
Recipe: (Percent, Batch)
Custer feldspar 48.2 48.18 Whiting 13.6 13.64 Silica 15.5 15.45 Ferro Frit 3110 9.1 9.09 Zinc oxide 4.6 4.55 Talc 3.6 3.64 Kaolin 5.5 5.45 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 0.9 0.91 Tin oxide 1.4 1.36
Comments:
My experience with copper red is that what matters most is to begin reduction at cone 012 fairly heavy and then go into moderate reduction after cone 05 drops. Continue moderate to light reduction until cone 10 then a brief oxidation peroid of about 10 minutes. If you over reduce it will be liver brown and under reduced will be celadon. One solution to a problem (uneven, spotty reduction and under reduced)we had was to turn down the gas and air. To slow it down and reduce at the above schedule. We were firing in an Alpine updraft with blowers and just running the same schedule as the people who fired before us. (It was a community center). They were firing at 4 pounds pressure (natural gas) with the blowers at 70. Something like that. But we reduced the gas and the air and the firing was 100% better. No more spotty reduction or unreduced pots. (I kind of miss those unwanted interesting results though.) submitted by: John Britt e-mail: claydude@erinet.com
Recipe: (Percent, Batch)
Barium carbonate 4.4 4.40 Dolomite 8.7 8.70 Whiting 8.4 8.40 Zinc oxide 1.7 1.70 Frit 3134 8.7 8.70 Custer feldspar 41.9 41.90 Silica 26.2 26.20 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 2.6 2.60 Copper carbonate 0.5 0.50 Bentonite 1.0 1.00
Comments:
From Ceramics Mo Oct. 2010 article on Peach Bloom glazes by John Britt. He says an aged glaze may form crystals in the glaze and give different fired results.
Recipe: (Percent, Batch)
Zinc oxide 7.0 7.00 Whiting 10.0 10.00 Feldspar 68.0 68.00 EPK 8.0 8.00 Silica 7.0 7.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 1.0 1.00 Tin oxide 2.0 2.00
Comments:
glazes from John Kenney's book that I used for copper reds and found them very interesting. No. 21, bristol glaze with Tin Oxide 2% and copper carbonate 1-2% gives a soft, smooth, red. I'm not sure which I used F-4 or Custer. This glaze is rated at 4-8. I used a fast cool when I fired these and all reds. submitted by: Linda Blossom e-mail: LBlos72758@aol.com source for original recipe: John Kenney
Recipe: (Percent, Batch)
Potash feldspar 26.5 26.50 Whiting 6.5 6.50 Wollastonite 5.0 5.00 Barium carbonate 5.0 5.00 Zinc oxide 2.5 2.50 Kentucky OM #4 12.0 12.00 Borax 13.0 13.00 Soda ash 2.5 2.50 Silica 27.0 27.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 1.5 1.50 Tin oxide 1.0 1.00
Comments:
glazes from John Kenney's book that I used for copper reds and found them very interesting. No. 25, rated at cone 8 - 12, does well at cone 6 - less runny. With copper carbonate 1 and 1/2 % and Tin at 1%, it gives a dependable, full, flambe. submitted by: Linda Blossom e-mail: LBlos72758@aol.com source for original recipe: John Kenney
Recipe: (Percent, Batch)
Nepheline syenite 42.4 42.40 Silica 22.7 22.70 Colemanite 13.3 13.30 Whiting 10.5 10.50 Custer feldspar 9.2 9.20 EPK 2.0 2.00 ----- -------- Totals: 100.0 100.10
Also add:
Tin oxide 1.7 1.70 Copper oxide 0.3 0.30
Comments:
this glaze needs good reduction to turn red. I use it on porcelain most of the time. Dear fellow potters, Here are two CONE 10 reduction copper red glazes. I have used these glazes for years, they do work, but must be fired correctly to get the red. I will not go into the correct firing of copper reds because it depens so much on the kiln and burner set up you have. I have found that some kilns simply do not produce good copper reds by any method I was able to fire them while others produced reds easly. I fire in an Olsen 36 cu. ft. up draft soft brick kiln with only moderate reduction and get good consistant bright copper reds t hroughout the kiln. Good luck and good potting. David Cuzick Claycuzian@aol.com
Recipe: (Percent, Batch)
Custer feldspar 46.2 46.20 Flint 19.8 19.80 EPK 2.5 2.50 Whiting 8.2 8.20 Gerstley borate 13.5 13.50 Zinc oxide 4.0 4.00 Dolomite 5.9 5.90 ----- -------- Totals: 100.0 100.10
Also add:
Tin oxide 3.0 3.00 Copper carbonate 1.5 1.50 Ferric oxide 0.5 0.50
Comments:
another we commonly use at the Potters Studio in Berkeley. It gives a bright red normally - a little darker perhaps than a real strawberry red, but is pretty reliable. We start the reduction early in the firing, usually by the time 010 is going down.. Liz Dodge lizzardol@aol.com The Potters Studio in Berkeley, CA Where the refreshing rains have begun again... and the fire hazard is lower and the earthquake hazard remains unpredictable.
Recipe: (Percent, Batch)
Godfrey feldspar 77.8 77.78 Colemanite 10.6 10.62 Whiting 11.6 11.60 ----- -------- Totals: 100.0 100.00
Also add:
Copper oxide 0.3 0.30 Tin oxide 1.0 1.00
Comments:
Recipe: (Percent, Batch)
Nepheline syenite 25.0 25.00 Whiting 15.0 15.00 Flint 20.0 20.00 Kaolin 15.0 15.00 Frit 3110 20.0 20.00 Frit 3124 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 3.0 3.00 Copper carbonate 1.0 1.00
Comments:
http://www.alanmacfarlane.com/mb/files/glaze%20recipes.htm
Recipe: (Percent, Batch)
Flint 42.1 42.08 Nepheline syenite 27.8 27.85 Gerstley borate 17.3 17.26 Dolomite 12.8 12.82 ----- -------- Totals: 100.0 100.01
Also add:
Copper carbonate 0.3 0.30 Yellow ochre 0.3 0.30 Tin oxide 0.3 0.30 Bentonite 1.5 1.51
Comments:
will run a little, don't overfire. Rich surface. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
Gerstley borate 10.2 10.20 Whiting 11.1 11.10 Custer feldspar 73.8 73.80 Silica 4.9 4.90 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 1.0 1.00 Copper carbonate 0.3 0.30 Bentonite 1.0 1.00
Comments:
Pete Pinnell: most dependable copper red. Goes a bit flambe very thick or over-reduced. Runs less than most copper reds. What matters most is to begin reduction at cone 012 fairly heavy and then go into moderate reduction after cone 05 drops. Continue moderate to light reduction until cone 10 then a brief oxidation peroid of about 10 minutes. If you over reduce it will be liver brown and under reduced will be celadon. One solution to uneven reduction and under reduced)we had was to turn down the gas and air. UF shop glaze.
Recipe: (Percent, Batch)
Nepheline syenite 48.0 48.00 Gerstley borate 14.0 14.00 Whiting 10.0 10.00 Flint 28.0 28.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 0.3 0.31 Tin oxide 1.0 1.02
Comments:
Pete Pinnell. Flocculate to prevent settling.Runs a bit more than Pete's Cranberry. Breaks and mottles nicely.
Recipe: (Percent, Batch)
Potash feldspar - theoretical 48.7 50.00 Whiting 8.6 8.80 Silica 10.7 11.00 Frit 3134 23.0 23.60 Kaolin - theoretical 9.1 9.30 ----- -------- Totals: 100.0 102.70
Also add:
Copper carbonate 0.3 0.30 Tin oxide 1.0 1.00
Comments:
Pete Pinnell. Flocculate to prevent settling.Runs a bit more than Pete's Cranberry. Breaks and mottles nicely.
Recipe: (Percent, Batch)
Custer spar 52.1 52.09 Magnesium carb 3.1 3.12 Flint 31.3 31.25 Whiting 13.5 13.54 ----- -------- Totals: 100.0 100.00
Also add:
Copper oxide 1.0 1.04 Tin oxide 3.1 3.12
Comments:
fire in reduction 900 c to 1300 c fire down at 1180 for 20 minutres from Hal Harold J. McWHINNIE Email: Harold_J_McWHINNIE@umail.umd.edu (hm9) Phone:53125
Recipe: (Percent, Batch)
Godfrey feldspar 77.8 77.78 Colemanite 10.6 10.62 Whiting 11.6 11.60 ----- -------- Totals: 100.0 100.00
Also add:
Copper oxide 0.3 0.30 Tin oxide 1.0 1.00
Comments:
(or Maine) Feldspar Copper oxide (0.3% of batch), Tin oxide (1.0% of batch). The good 'ol Chinese Stoneware Glazes book by Grebanier has allot about copper reds and peach blooms. The one formula that is for cone 10 (most should be fired to no more that cone 9) is below. It is a deep, semi-mat red; (when fired to cone 9, it produces a peach bloom, somewhat more mat.) Where thick it develops a slight bluish opalescence. Best results are achieved with a white slip under the glaze. Also note the Godfrey or Maine feldspar: I have looked everywhere and know now that it is no longer available. The best substitute, as I know it, is neph syenite. Also note it's a very runny glaze! If you decide on some Cone 9 fireings, let me know, or try to get your hands on a copy of Grebanier. Good luck.. source for original recipe: Grebanier submitted by: Susan Maguire e-mail: smaguire@bcfreenet.seflin.lib.fl.us
Recipe: (Percent, Batch)
Barium carbonate 3.9 3.89 Dolomite 5.6 5.56 Gerstley borate 11.1 11.12 Whiting 8.3 8.34 Ash wood 1.0 1.00 Zinc oxide 1.7 1.67 Kona F-4 feldspar 41.7 41.72 EPK 1.7 1.67 Silica 25.0 25.03 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 0.8 0.83 Copper carbonate 0.4 0.42
Comments:
From Ceramics Mo Oct. 2010 article on Peach Bloom glazes by John Britt.
Recipe: (Percent, Batch)
Ferro frit 3269 9.9 9.90 Lithium carbonate 4.6 4.60 Calcined kaolin 16.0 16.00 EPK 8.0 8.00 Silica 61.5 61.50 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
add CMC 1 tsp (Ferro frit 3269 substituted directly for Pemco 25) At Cone 9 it looks like the frosting on a glazed donut with only a few bubbles. It has not moved or melted at all except for tiny areas where it looks very nice. I was told the Frit was a direct substitute for the Pemco #25 in the original recipe but this must have been wrong. Any help Thanks Chris chris campbell
Recipe: (Percent, Batch)
Ferro frit 3269 9.9 9.90 Lithium carbonate 4.6 4.60 Calcined kaolin 16.0 16.00 EPK 8.0 8.00 Silica 61.5 61.50 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
add CMC 1 tsp (Ferro frit 3269 substituted directly for Pemco 25) At Cone 9 it looks like the frosting on a glazed donut with only a few bubbles. It has not moved or melted at all except for tiny areas where it looks very nice. I was told the Frit was a direct substitute for the Pemco #25 in the original recipe but this must have been wrong. Any help Thanks Chris chris campbell
Recipe: (Percent, Batch)
Cornwall Stone 85.0 85.00 Whiting 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
I'm looking for a white crackle glaze, satin or semi-mat surface. I just tested an old glaze recipe dug up from my files. Guess what.....no crackles, no crazing. Turned out a smooth satin white on my porcelain at a high ^6. Couldn't believe it...and to think what I go through some times to get rid of crazing on a functional glaze!!! Anyone have a white crackle glaze to share? submitted by: Anne Chambers e-mail: annecham@istar.ca
Recipe: (Percent, Batch)
Kona F-4 feldspar 27.3 30.00 Frit 3134 9.1 10.00 Magnesium carbonate 28.2 31.00 Frit 3195 5.5 6.00 Talc 7.3 8.00 Zinc oxide 5.5 6.00 EPK 17.3 19.00 ----- -------- Totals: 100.0 110.00
Comments:
I have used Robbin Hoppers LG1 (ceramic spectrum p. 211) up to cone 10 and even in salt and it does fine. Nancy Udell
Recipe: (Percent, Batch)
Nepheline syenite 70.0 70.00 Magnesium carbonate 30.0 30.00 ----- -------- Totals: 100.0 100.00
Comments:
crawly glaze that looks like dried out mud. Pam Cresswell
Recipe: (Percent, Batch)
Potash feldspar 56.0 56.00 Whiting 23.4 23.40 Kaolin 20.6 20.60 ----- -------- Totals: 100.0 100.00
Comments:
PEGGY HEER email: p4337@freenet.edmonton.ab.ca 9702 76 AVENUE phone: 433-0290 EDMONTON, AB. CANADA T6E 1K3 Variations -- For opaque white add 5 pts Titanium For oatmeal tan add 5 pts. rutile
Recipe: (Percent, Batch)
Custer feldspar 75.0 75.00 Whiting 15.0 15.00 Flint 5.0 5.00 Kaolin 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.0 3.00
Comments:
From Margaret Bohls. Red in oxidation, celadon-esque in reduction. Variations -- + 7.5% Crimson Mason Stain
Recipe: (Percent, Batch)
G-200 feldspar 36.8 36.84 Whiting 10.5 10.53 Dolomite 21.1 21.05 Flint 31.6 31.58 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 10.5 10.53 Bentonite 5.3 5.26 Cobalt carbonate 1.6 1.58
Comments:
(May use Custer instead of G-200.) Quite variable. At its best a beautiful slate blue with small crystals (1/16) peppering the surface (green centers w/ white halo). slightly fluid. Narrow firing range, just Knock down ^10 and leave it at that, soak it slightly cooler. I usually soak between 2050-2150 F ( I think my pyrometer is a little low). Soak time is important. Longer soak and the crystals completely cover the surface. I found a 1/2 hr soak was about right. beautiful no matter how you fire it. I've sold a lot of this. I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
Frit 3110 57.0 57.00 Zinc oxide 25.0 25.00 Flint 18.0 18.00 ----- -------- Totals: 100.0 100.00
Comments:
From Conrad "Contemporary Ceramic Formulas" . Soak for 3 hours. Snowflake crystals, frost white. Crazes where thick.
Recipe: (Percent, Batch)
Custer feldspar 47.0 47.00 Whiting 18.0 18.00 EPK 7.0 7.00 Silica 28.0 28.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 6.0 6.00 Red iron oxide 10.0 10.00 Cobalt carbonate 0.5 0.50
Comments:
Recipe: (Percent, Batch)
Custer feldspar 46.0 46.00 Whiting 17.3 17.30 Tile 6 clay 14.9 14.90 Strontium carbonate 12.6 12.60 Frit 3124 4.6 4.60 Lithium carbonate 4.6 4.60 ----- -------- Totals: 100.0 100.00
Also add:
Titanium oxide 13.8 13.80 Bentonite 2.0 2.00
Comments:
tested by Nicole Gugliotti. Crystalline matte surface that runs and pulls slip color with it in dramatic ways. Looks like melted ice cream. Moves quite a bit and forms a bead at the bottom.
Recipe: (Percent, Batch)
Custer feldspar 89.7 67.30 Whiting 3.7 2.79 Talc 1.8 1.35 Flint 4.8 3.60 ----- -------- Totals: 100.0 75.04
Also add:
Manganese dioxide 27.3 20.50 Red iron oxide 4.8 3.60
Comments:
From Peter Beasecker. Cool gracefully for best crystal formation. Variations -- bronze: + copper carb 10% (in addition to MnO2 and RIO)
Recipe: (Percent, Batch)
Ferro frit 3110 61.9 61.90 Zinc oxide 23.8 23.81 Silica 14.3 14.29 ----- -------- Totals: 100.0 100.00
Comments:
dave eickholtVariations -- Plus 2% titianium dioxide will yield white add other oxides also with titianium ex 2% copper carb. & 1/2 % cobalt carb . will give a blue crystal /green background holding temp.after melt cone 8 should be about 1900 to 1850 F.
Recipe: (Percent, Batch)
Feldspar 54.8 54.70 Zinc oxide 17.7 17.70 Silica 15.7 15.70 Whiting 11.8 11.80 ----- -------- Totals: 100.0 99.90
Also add:
Bentonite 1.0 1.00
Comments:
From Conrad
Recipe: (Percent, Batch)
Frit 3134 15.0 15.00 Pemco 283 40.0 40.00 Zinc oxide 25.0 25.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Tested by Laura Aultman. Fire quickly to c 10 oxidation. Soaking window determines crystal shape: 2120 F to about 1880F. fire to c 10. Cool naturally to 2040 deg F. Cooling ramps: 1 500/hr to 2040 deg. F hold 50 min 2 500/hr to 1960 deg. F, hold 30 min. 3 500 deg/hr to 1880 deg. F, hold 15 min 4 500 deg/hr to 1840, hold 5 min.
Recipe: (Percent, Batch)
Frit 3110 50.5 50.00 Zinc oxide 25.3 25.00 siil 15.2 15.00 Spodumene 5.1 5.00 Talc theoretical 4.0 4.00 ----- -------- Totals: 100.0 99.00
Also add:
Titanium oxide 3.0 3.00
Comments:
Tested by Laura Aultman. Fire quickly to c 10 oxidation. Soaking window determines crystal shape: 2120 F to about 1880F. fire to c 10. Cool naturally to 2040 deg F. Cooling ramps: 1 500/hr to 2040 deg. F hold 50 min 2 500/hr to 1960 deg. F, hold 30 min. 3 500 deg/hr to 1880 deg. F, hold 15 min 4 500 deg/hr to 1840, hold 5 min.
Recipe: (Percent, Batch)
Frit 3110 53.3 48.00 Zinc oxide 24.4 22.00 Silica 22.2 20.00 ----- -------- Totals: 100.0 90.00
Also add:
Titanium dioxide 11.1 10.00
Comments:
Tested by Laura Aultman. Fire quickly to c 10 oxidation. Soaking window determines crystal shape: 2120 F to about 1880F. fire to c 10. Cool naturally to 2040 deg F. Cooling ramps: 1 500/hr to 2040 deg. F hold 50 min 2 500/hr to 1960 deg. F, hold 30 min. 3 500 deg/hr to 1880 deg. F, hold 15 min 4 500 deg/hr to 1840, hold 5 min.
Recipe: (Percent, Batch)
Frit 3110 47.6 44.00 Zinc oxide 29.2 27.00 Flint 22.7 21.00 Alumina 0.5 0.50 ----- -------- Totals: 100.0 92.50
Also add:
Titanium dioxide 8.6 8.00 Molochite 0.5 0.50 Bentonite 0.2 0.20
Comments:
This recipe says "molochite" which is porcelain grog. I wonder if the author meant macaloid, a synthetic bentonite, which makes a lot more sense. Tested by Laura Aultman. Fire quickly to c 10 oxidation. Soaking window determines crystal shape: 2120 F to about 1880F. fire to c 10. Cool naturally to 2040 deg F. Cooling ramps: 1 500/hr to 2040 deg. F hold 50 min 2 500/hr to 1960 deg. F, hold 30 min. 3 500 deg/hr to 1880 deg. F, hold 15 min 4 500 deg/hr to 1840, hold 5 min.
Recipe: (Percent, Batch)
Frit 3110 48.2 48.20 Zinc oxide 29.1 29.10 Silica 21.2 21.20 EPK 1.4 1.40 ----- -------- Totals: 100.0 99.90
Also add:
Titanium dioxide 6.0 6.00
Comments:
Tested by Laura Aultman. Fire quickly to c 10 oxidation. Soaking window determines crystal shape: 2120 F to about 1880F. fire to c 10. Cool naturally to 2040 deg F. Cooling ramps: 1 500/hr to 2040 deg. F hold 50 min 2 500/hr to 1960 deg. F, hold 30 min. 3 500 deg/hr to 1880 deg. F, hold 15 min 4 500 deg/hr to 1840, hold 5 min.
Recipe: (Percent, Batch)
Lithium carbonate 0.2 0.20 Zinc oxide 32.8 32.80 Frit 3110 49.6 49.60 Flint 17.4 17.40 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.5 2.50
Comments:
Tested by Laura Aultman. Fire quickly to c 10 oxidation. Soaking window determines crystal shape: 2120 F to about 1880F. fire to c 10. Cool naturally to 2040 deg F. Cooling ramps: 1 500/hr to 2040 deg. F hold 50 min 2 500/hr to 1960 deg. F, hold 30 min. 3 500 deg/hr to 1880 deg. F, hold 15 min 4 500 deg/hr to 1840, hold 5 min.
Recipe: (Percent, Batch)
Zinc oxide 25.8 25.80 Spodumene 1.6 1.60 Frit 3110 50.6 50.50 EPK 1.6 1.60 Silica 20.4 20.40 ----- -------- Totals: 100.0 99.90
Also add:
Titanium dioxide 8.6 8.60 Bentonite 1.6 1.60
Comments:
Tested by Laura Aultman. Fire quickly to c 10 oxidation. Soaking window determines crystal shape: 2120 F to about 1880F. fire to c 10. Cool naturally to 2040 deg F. Cooling ramps: 1 500/hr to 2040 deg. F hold 50 min 2 500/hr to 1960 deg. F, hold 30 min. 3 500 deg/hr to 1880 deg. F, hold 15 min 4 500 deg/hr to 1840, hold 5 min.
Recipe: (Percent, Batch)
Frit 3110 53.8 50.00 Zinc oxide 26.9 25.00 Silica 19.4 18.00 ----- -------- Totals: 100.0 93.00
Also add:
Tin oxide 2.2 2.00
Comments:
Tested by Laura Aultman. Fire quickly to c 10 oxidation. Soaking window determines crystal shape: 2120 F to about 1880F. fire to c 10. Cool naturally to 2040 deg F. Cooling ramps: 1 500/hr to 2040 deg. F hold 50 min 2 500/hr to 1960 deg. F, hold 30 min. 3 500 deg/hr to 1880 deg. F, hold 15 min 4 500 deg/hr to 1840, hold 5 min.
Recipe: (Percent, Batch)
Frit 3110 51.5 51.50 Zinc oxide 25.8 25.80 Flint 22.7 22.70 ----- -------- Totals: 100.0 100.00
Also add:
Titanium dioxide 5.2 5.20
Comments:
Tested by Laura Aultman. Fire quickly to c 10 oxidation. Soaking window determines crystal shape: 2120 F to about 1880F. fire to c 10. Cool naturally to 2040 deg F. Cooling ramps: 1 500/hr to 2040 deg. F hold 50 min 2 500/hr to 1960 deg. F, hold 30 min. 3 500 deg/hr to 1880 deg. F, hold 15 min 4 500 deg/hr to 1840, hold 5 min.
Recipe: (Percent, Batch)
Frit 3110 44.4 44.00 Zinc oxide 33.3 33.00 Flint 21.2 21.00 Alumina hydrate 0.4 0.40 Kaolin 0.6 0.60 ----- -------- Totals: 100.0 99.00
Also add:
Titanium dioxide 6.1 6.00
Comments:
Variations -- 1. copper carb 6% 2. Copper Carb .4% + Manganese Diox 1.2% 3. copper carb 3.5% + cobalt Carbonate .5%
Recipe: (Percent, Batch)
Ferro frit 3110 52.1 52.08 Zinc oxide 26.0 26.04 Silica 20.8 20.83 China clay 1.0 1.04 ----- -------- Totals: 100.0 99.99
Also add:
Titanium dioxide 5.2 5.21
Comments:
Note that this glaze did not have a cone specified, but it appears to be a cone 9 glaze. I do not have experience with crystalline glazes but I do know of an excellent article that appeared in Ceramic Review No.137 (Sept/Oct 1992) by Derek Clarkson. His recipes are all based on the previous approximate percentages. The china clay was listed as China Clay/Alumina Colouring Oxides - cobalt, copper and manganese most often used, followed by iron and nickel. The article gives ten specific recipes around the above with colour illustrations to show the very dramatic crystal effects. For each of these examples the article also gives the firing details of the times of crystal growing periods and the diameter of the largest crystal. There is also a mass of detail on the application of the glazes with copious illustrations. Derek Clarkson says that Porcelain bodies are the most suitable. White stoneware bodies can also be used but the crystals are smaller. If you are unable to get sight of a copy of this article please contact me by e-mail if you want further information. submitted by: David Hewitt e-mail: david@dhpot.demon.co.uk
Recipe: (Percent, Batch)
Ferro frit 3110 52.1 52.08 Zinc oxide 26.0 26.04 Silica 20.8 20.83 China clay 1.0 1.04 ----- -------- Totals: 100.0 99.99
Also add:
Titanium dioxide 5.2 5.21
Comments:
Note that this glaze did not have a cone specified, but it appears to be a cone 9 glaze. I do not have experience with crystalline glazes but I do know of an excellent article that appeared in Ceramic Review No.137 (Sept/Oct 1992) by Derek Clarkson. The china clay was listed as China Clay/Alumina Colouring Oxides - cobalt, copper and manganese most often used, followed by iron and nickel. The article gives ten specific recipes around the above with colour illustrations to show the very dramatic crystal effects. For each of these examples the article also gives the firing details of the times of crystal growing periods and the diameter of the largest crystal. There is also a mass of detail on the application of the glazes with copious illustrations. Derek Clarkson says that Porcelain bodies are the most suitable. White stoneware bodies can also be used but the crystals are smaller. If you are unable to get sight of a copy of this article please contact me by e-mail if you want further information. submitted by: David Hewitt e-mail: david@dhpot.demon.co.uk
Recipe: (Percent, Batch)
Custer feldspar 23.6 23.64 Dolomite 28.2 28.18 Kaolin 28.2 28.18 Whiting 13.6 13.64 Silica 6.4 6.36 ----- -------- Totals: 100.0 100.00
Comments:
Does anyone have a glaze that is or looks very much like the glaze on Ken Ferguson's casserole on page 58 of the current (June) CM. I'm not promising the rights to my firstborn, but I'd sure be grateful! Looks to me like a typical matte like Cushing Matte which follows, over a body with pretty good chunks of Manganese Dioxide in it. This glaze, probably from Val Cushing, easily dates from that period. Cone 9-10 reduction submitted by: Brad Sondahl e-mail: Sondahl@aol.com
Recipe: (Percent, Batch)
Kona F-4 feldspar 43.5 43.51 Silica 28.1 28.12 Whiting 18.2 18.24 Kaolin 10.1 10.13 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Red iron oxide 1.0 1.00
Comments:
Here is a recipe for a reliable glossy dark blue. I have fired it in gas and wood and it works well either way. submitted by: Debbie Vacchi e-mail: DebbieArt@aol.com
Recipe: (Percent, Batch)
EPK 44.4 44.44 Alumina 44.4 44.44 Silica 5.6 5.56 Custer feldspar 5.6 5.56 ----- -------- Totals: 100.0 100.00
Comments:
Use calcined alumina (as opposed to Alumina hydrate? Ed.). added to this for colorants: cobalt carbonate 1%,(blue) copper carbonate 4% (red to green), rutile 4% (light brown) among others. Recently, I have been experimenting with some glazes which are variations on my kiln wash receipe of 50% e.p.k. and 50% calcined alumina. I fire this to cone 10 in soda. submitted by: Daryl Mccracken e-mail: DMccrac555@aol.com
Recipe: (Percent, Batch)
Custer feldspar 47.0 47.00 Whiting 18.0 18.00 EPK 7.0 7.00 Flint 28.0 28.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 4.6 4.60 Red iron oxide 4.6 4.60 Copper carbonate 0.5 0.50
Comments:
Mottled blue breaking to orange. Pretty color, but prone to pinholing, esp. when thick.
Recipe: (Percent, Batch)
Frit 3134 7.5 7.50 Spodumene 22.0 22.00 F-4 spar 11.0 11.00 Wollastonite 8.5 8.50 Talc theoretical 21.0 21.00 EPK 9.0 9.00 Silica 21.0 21.00 ----- -------- Totals: 100.0 100.00
Comments:
Tested by Nicole Gugliotti. From waxy translucent white to a textured more mottled frosty look thicker. A great clotted white glaze that has good white-on-white marshmallow effect on porcelain.Stains show.
Recipe: (Percent, Batch)
Custer feldspar 32.7 32.69 Silica 32.7 32.69 Whiting 15.4 15.38 Kentucky OM #4 9.6 9.62 EPK 9.6 9.62 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.0 8.00 Cobalt carbonate 3.8 3.80
Comments:
The only black I see in Coleman's recipe book that mentions breaking blue ^8-10 reduction Shiny jet black with a slight metallic surface. If it is used thinly over a light colored stoneware or porcelain it will tend to break blue over edges. It will shift slightly at cone 10. joyce lee, jim lee
Recipe: (Percent, Batch)
Dolomite 8.0 8.00 Whiting 34.0 34.00 Potash feldspar 5.0 5.00 Kaolin 33.0 33.00 Silica 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Here's one that I formulated and have used for a number of years. It is best applied by spraying but can be dipped, poured, etc. You have to work with the thickness to got the desired result. A light application will orange peel like a salt glaze while heavier applications will run. Too much thickness and you will get blistering. This glaze works well with most oxides. It also works best on porcelain or with white slips but don't be afraid to try anything...you never know. You can get this glaze to work at cone 8 and 9 by substituting Ball Clay for Kaolin. You might want to do a sub at cone 10 as well to observe the difference. Regards, Craig Martell-Oregon
Recipe: (Percent, Batch)
Nepheline syenite 20.0 20.00 China clay 30.0 30.00 Calcined kaolin 30.0 30.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
This variant was suggested by Jeremy Nudell Kalin on ClayArt, who tested it and said it worked quite well over a typical light colored saltglazing body in a kiln fired with soda ash and a little rock salt at the end.
Recipe: (Percent, Batch)
Potash feldspar 46.3 46.30 Dolomite 15.0 15.00 Whiting 9.2 9.20 Bone ash 7.4 7.40 Kaolin 22.2 22.20 ----- -------- Totals: 100.0 100.10
Also add:
Zircopax 7.4 7.40 Red iron oxide 1.1 1.10 Rutile 1.1 1.10
Comments:
submitted by: Ruth Ballou e-mail: rballou@mnsinc.com
Recipe: (Percent, Batch)
Custer spar 56.8 56.80 Dolomite 13.6 13.60 Whiting 10.6 10.60 Zinc oxide (calc.) 3.0 3.00 EPK 16.0 16.00 ----- -------- Totals: 100.0 100.00
Also add:
Ilmenite 2.0 2.00 Rutile 2.0 2.00 Black iron oxide 2.0 2.00
Comments:
Reliable "autumn leaves" glaze. The same color as the leaves that we have to pick up every fall, our house is surrounded by maple trees. The name of the street we live on is Des Erables and maple in french is érable. It is the same glaze base as Mag. *How long have you been using this glaze? 4 years *Where did this recipe come from? My own experimentation *What do you like most about this glaze? It is the very special colors wich may vary depending on the color of the underlying claybody and on the amount of reduction *Is this glaze reliable? 100% *Does this glaze tend to craze/crawl/pinhole/etc.? No.It has no surface flaws. *How does the glaze behave on different clay bodies? Darker on darker bodies and lighter on light bodies. *What consistency should the glaze be for pouring/dipping? Thin to medium *How thickly should the glaze be applied to the pot? Thin to medium *What is your kiln type and size? Downdraft,propane and atmospheric,60 cubic feet *How do you typically fire? Oxidation until clay reduction at cone 08, then light reduction increasing with time until the final and total reduction of 20 minutes, followed by a period of reoxidation of 20 minutes. *GlazeBase recipe* Submitted by: Edouard Bastarache (edouardb@sorel-tracy.qc.ca)
Recipe: (Percent, Batch)
Nepheline syenite 80.0 80.00 Dolomite 12.0 12.00 Kona F-4 feldspar 4.0 4.00 Flint 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 10.0 10.00
Comments:
Glaze that is prone to flashing from copper or chrome fuming in firing. From Peter Beasecker
Recipe: (Percent, Batch)
Custer feldspar 62.6 62.63 EPK 18.4 18.39 Silica 14.3 14.31 Whiting 3.3 3.28 Dolomite 1.4 1.39 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Potash feldspar 45.5 45.50 Flint 25.3 25.30 Whiting 14.1 14.10 Zinc oxide 4.0 4.00 Ferro frit 3134 7.1 7.10 Barium carbonate 2.0 2.00 Lithium carbonate 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Tin oxide 1.0 1.00 Copper carbonate 0.6 0.60
Comments:
These are glazes I got on Maui. I make no claims regarding these glazes' reliability or safety. I don't know of their origin. These are in use at Hui No'Eau in Makawao, Maui. Sam Tomich
Recipe: (Percent, Batch)
Flint 33.7 33.50 Custer feldspar 23.1 23.00 Dolomite 14.6 14.50 Kaolin 12.6 12.50 Whiting 11.1 11.00 Barium carbonate 1.0 1.00 Gerstley borate 4.0 4.00 ----- -------- Totals: 100.0 99.50
Also add:
Tin oxide 0.5 0.50
Comments:
Shiny translucent to opaque. Nice variations. I use the yellow-green as a complement to Green Sparkle VC Matt Revised. From Margaret Bohls Variations -- green: + copper 3%, + vanadium Mason stain 7% yellow-green: + copper 1.5%, + vanadium Mason stain 9%
Recipe: (Percent, Batch)
Potash feldspar - theoretical 21.2 21.25 Whiting 15.9 15.92 Kaolin - theoretical 20.8 20.80 Silica 42.0 42.04 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Kona F-4 feldspar 43.5 43.50 Silica 28.1 28.10 Whiting 18.2 18.20 Kaolin 10.1 10.10 ----- -------- Totals: 100.0 99.90
Also add:
Cobalt carbonate 1.0 1.00 Red iron oxide 1.0 1.00
Comments:
Here is a recipe for a reliable glossy dark blue. I have fired it in gas and wood and it works well either way. submitted by: Debbie Vacchi e-mail: DebbieArt@aol.com
Recipe: (Percent, Batch)
Barium carbonate 2.5 2.50 Whiting 16.0 16.00 Custer feldspar 49.5 49.50 Kentucky OM #4 10.0 10.00 Silica 22.0 22.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 1.3 1.28 Cobalt oxide 4.9 4.93 Manganese dioxide 2.5 2.46 Red iron oxide 5.0 4.96
Comments:
submitted by: June M. Perry e-mail: GURUSHAKTI@aol.com
Recipe: (Percent, Batch)
Whiting 23.3 23.30 G-200 feldspar 27.2 27.20 EPK 19.2 19.20 Flint 27.3 27.30 Zinc oxide 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
chrome oxide 0.3 0.30 Cobalt carbonate 1.4 1.40
Comments:
Deep teal over stoneware deep blue with slip. Satin to almost gloss glaze Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Custer feldspar 34.9 34.91 Dolomite 19.7 19.72 Whiting 3.1 3.12 EPK kaolin 23.2 23.24 Flint 19.0 19.01 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 10.1 10.06 Bentonite 2.0 2.01 Red iron oxide 3.0 3.02
Comments:
Here is a GOLD LINER glaze that was used at the University of Louisville. I am not sure that it is a Shaner glaze, but we used a lot of his reds, yellows and oranges, so I'm guessing that it might be. As I remember, this glaze gave a completely different surface on porcelain than stoneware. Both were very nice though. doug Douglas E. Gray, Assistant Professor of Art P.O. Box 100547 Department of Fine Arts and Mass Communication Francis Marion Univeristy Florence, South Carolina 29501-0547 dgray@fmarion.edu 803/661-1535
Recipe: (Percent, Batch)
Redart 85.7 60.00 Ball clay 7.1 5.00 Flint 7.1 5.00 ----- -------- Totals: 100.0 70.00
Also add:
Manganese dioxide 64.3 45.00 Copper oxide 7.1 5.00 Cobalt oxide 7.1 5.00
Comments:
From Craig Reynolds. Runs a lot at cone 10, but lovely waxy to matt surface. NOT for food. Calls for black copper oxide.
Recipe: (Percent, Batch)
Custer feldspar 52.0 52.00 EPK 7.0 7.00 Calcined kaolin 16.0 16.00 Whiting 21.0 21.00 Talc 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Iron oxide 2.5 2.50 Rutile 2.5 2.50 Bone ash 3.0 3.00
Comments:
This is related to Shaner Red. Variations -- Shaner Pumpkin is the above formula plus 4.5 Rutile and 4.5 Iron.
Recipe: (Percent, Batch)
G-200 feldspar 33.3 33.30 Whiting 25.0 25.00 Kentucky OM #4 12.5 12.50 Flint 25.0 25.00 Zinc oxide 4.2 4.20 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 5.0 5.00 Chrome oxide 2.5 2.50
Comments:
from Don Satin smooth gloss. Deep teal (thick) to black(thin) Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Feldspar 40.0 40.00 Whiting 18.0 18.00 Cornwall Stone 18.0 18.00 Tennessee #1 ball clay 20.0 20.00 Magnesium carbonate 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.0 1.00
Comments:
Add C.M.C. 1 tsp I have had trouble with pinholing over underglaze and slip,too. I fire to ^8 ox. on Sheffield's T3 body. When I use Amaco underglaze or a slip made from the clay body, bisqued to ^06 and then put Translucent Gray-White semi-matte over it, pinholing occurs only over the underglaze or slip. I suspect the problem lies with the gases escaping from the slip and underglaze but I don't know how to deal with this. I have a Paragon kiln with a computer control hoobee but it doesn't have a soak option (if I had only known!). submitted by: Leona Stonebridge Arthen e-mail: leona@arthen.ultranet.com
Recipe: (Percent, Batch)
Feldspar 40.0 40.00 Whiting 18.0 18.00 Cornwall Stone 18.0 18.00 Tennessee #1 ball clay 20.0 20.00 Magnesium carbonate 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.0 1.00
Comments:
Add C.M.C. 1 tsp I have had trouble with pinholing over underglaze and slip,too. I fire to ^8 ox. on Sheffield's T3 body. When I use Amaco underglaze or a slip made from the clay body, bisqued to ^06 and then put Translucent Gray-White semi-matte over it, pinholing occurs only over the underglaze or slip. I suspect the problem lies with the gases escaping from the slip and underglaze but I don't know how to deal with this. I have a Paragon kiln with a computer control hoobee but it doesn't have a soak option (if I had only known!). submitted by: Leona Stonebridge Arthen e-mail: leona@arthen.ultranet.com
Recipe: (Percent, Batch)
Red clay 21.7 21.70 Custer feldspar 46.2 46.23 Whiting 18.9 18.87 Talc 3.8 3.77 Bone ash 4.7 4.72 Gerstley borate 4.7 4.72 ----- -------- Totals: 100.0 100.01
Also add:
Red iron oxide 2.8 2.83
Comments:
This is one of my favorite green glazes that I used successfully for a number of years on c10 production ware. It's a medium to dark green gloss that breaks nicely on dark clays; pools dark green to sometimes blue. Looks good on porcelain also. ***Castle Rock red is (was) a clay mined in Castle Rock, CO, and used to be available from Mile-Hi Ceramics in Denver. It was a sorta dull mustard yellow in the unfired state and fired to a toasty terra cotta red at c1-2. A friend of mine substituted Red Art for the CRR and the results were much the same (though not exactly). submitted by: Patrick Veerkamp e-mail: veerkamp@southwestern.edu
Recipe: (Percent, Batch)
Nepheline syenite 74.3 74.26 Zinc oxide 2.0 1.98 Dolomite 5.0 4.95 Whiting 3.0 2.97 EPK 6.9 6.93 Flint (325m) 8.9 8.91 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 4.0 3.96 Cobalt oxide 3.0 2.97 Rutile 9.9 9.90
Comments:
one Type: Orton Clay Color/Type: Brown stoneware Clarity: Opaque Crystals: None Clustered, Dispersed Bubbles Within Glaze: No Glaze Flow: Little flow Glaze Type: MEASURED Thermal Expansion: - What Makes This Glaze Unique: It is an extremely intriguing glaze because of the variety of color and surface quality that it yields depending on the clay color, thickness of the glaze and whether or not it overlaps another glaze. - Firing data: only tested at cone 6 and 7 - Surface quality variations: Applied thickly, the color is almost a gun metal black with a waxy to satin matt finish over buff, brown and porcelain clays. Lighter coats, especially over buff clays yield greens and blues and almost a glossy surface. - Kiln size, manufacture and type: Skutt 1027 - Effects of firing to different cones: - Coloring oxides, stains and opacifiers tested: - Known glaze flaws: - Apparent viscosity for pouring and dipping: - Application thickness: Depends on the desired effect. It can be dipped, but brushing yields more interesting effects and greater color variety. - Effects on different clay bodies: See above - Interactive effect with other glazes: One of the most exciting effects develops when using this over a white glaze covering porcelain clay. An extremely light coat brushed on yields bright sea blues and greens with patches of almost gold. Over the same white glaze on buff clay, the cobalt blue dominates. (The white glaze I use tends to turn virtually clear over buff or brown clay, leaving a glossy, faintly white blue finish.) - Specific gravity of glaze for pouring and dipping: - Water
Recipe: (Percent, Batch)
Gerstley borate 2.0 2.00 Whiting 5.0 5.00 Nepheline syenite 70.0 70.00 Petalite 15.0 15.00 Ball clay 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Rutile 2.0 2.00 Bentonite 2.0 2.00
Comments:
Nice, rich, appealing. Unlike any green you've ever seen. Breaks white over raised decoration. Viscosity is important as glaze varies with thickness. Thick=bright green, medium=dark green, thin=grey-blue. I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
K-200 feldspar 44.0 44.00 EPK 10.0 10.00 Whiting 18.0 18.00 Flint 28.0 28.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 1.0 1.00
Comments:
This is a 4,3,2,1, slightly revised. The original Tom Coleman Green had 0.25% Chrome oxide to get that green green celadon.
Recipe: (Percent, Batch)
Cornwall Stone 46.0 46.00 Whiting 34.0 34.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 4.0 4.00 Copper carbonate 4.0 4.00
Comments:
From Susan Harris
Recipe: (Percent, Batch)
Feldspar 56.0 56.00 Whiting 20.0 20.00 Ball clay 2.0 2.00 Spodumene 7.0 7.00 Bone ash 4.0 4.00 Gerstley borate 5.0 5.00 Calcined kaolin 6.0 6.00 ----- -------- Totals: 100.0 100.00
Also add:
Chromium oxide 0.5 0.50 Cobalt carbonate 0.5 0.50 Nickel carbonate 0.1 0.05
Comments:
From Scott Goldberg. Orig. calls for p spar.
Recipe: (Percent, Batch)
Bone ash 4.8 4.76 Gerstley borate 8.6 8.57 Whiting 4.8 4.76 Kona F-4 Soda Feldspar 63.8 63.81 Flint 13.3 13.33 Zinc oxide 4.8 4.76 ----- -------- Totals: 100.0 99.99
Also add:
Red iron oxide 1.9 1.90 Cobalt oxide 0.2 0.24 Chrome oxide 0.5 0.48
Comments:
This base glaze gives great color response. The colors you get will depend a lot on your claybody and your firing schedule. june perry Variations -- For dark Speckled green on stoneware, hunter on porcelain add: 2 % red iron oxide .25 Cobalt oxide .50 Chrome oxide Another beautiful green would be to add: 1% red iron oxide .25 cobalt oxide 1 chrome oxide 5% Tin oxide For a great warm, speckled, reddish brown, add: 2% Red Iron Oxide and 2% Copper Oxide. This base recipe makes a good blue celadon with the addtion of 2% Black Iron oxide. If you want it bluer you can do a variation with 1-2% black iron oxide and .25% cobalt carbonate. It is also a good rutile blue with variations from 1-4% Rutile and !-2% Yellow ochre, or Red Iron. oxide. This base is also reactive with copper so you can get nice flashing with just a hint to copper brushwork on a pot on the celadon colors. You may want to do some variations using another sodaspar as well.
Recipe: (Percent, Batch)
G-200 feldspar 37.5 37.54 Flint 26.0 26.03 EPK 15.6 15.62 Talc 6.5 6.51 Whiting 14.3 14.31 ----- -------- Totals: 100.0 100.01
Also add:
Red iron oxide 2.0 2.00
Comments:
Gee, I got worried that Mel had been chased out of town. I get tired of shadow boxing with myself and worried that a worthy sparing partner had gone off to Nagano to play hockey. The definition of a Canadian is a guy that is 50 years old and still thinks he is going to make the NHL. To welcome him back with his thoughts on a web page I am offering him some green Mel was waiting for Ron Roy to supply a Celedon glaze. Rather than wait I'm going to give you ours except we call it green. I could send you a nice temmoku glaze that we use and guess what we call it. You guessed it , that's our black glaze. Mel had mentioned some time ago that he was not getting the iron content right. We found that with this glaze what makes it spectacular is the seiving. We first seive thru 80 mesh and then twice thru 150 mesh. It is dynamite on porcelain . Good with oxides or shows up details under the surface. Also very good on stoneware. Nice hard, durable glaze Cone 9-10. May your pots be green and your leaves celedon. Cheers, tony clennell
Recipe: (Percent, Batch)
Barium carbonate 22.1 24.20 Whiting 9.3 10.20 Custer feldspar 54.8 59.90 Kentucky OM #4 5.3 5.80 Zinc oxide 8.5 9.24 ----- -------- Totals: 100.0 109.34
Also add:
Copper carbonate 2.8 3.07 Red iron oxide 2.7 2.91 Rutile 2.1 2.30
Comments:
From Sam Chung. Good in soda. NOT FOR FOOD USE
Recipe: (Percent, Batch)
Alberta slip 45.0 45.00 Whiting 25.0 25.00 Silica 20.0 20.00 Custer feldspar 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 23.0 23.00
Comments:
Albany-type clear with a nice glassy transparent surface. I have been running color tests on this glaze for the past 6 months. Will it ever stop- I doubt it. One of the most interesting surfaces, both in color and in texture, was done with 5% Laguna Forest Green stain. I have no idea where this stain came from- unfortunately the bag looked rather old. Keep it pretty ding-dang thin, else you're likely to be chipping shelves. submitted by: Jeremy Nudell Kalin, e-mail: kali0015@gold.tc.umn.edu
Recipe: (Percent, Batch)
Barium carbonate 7.1 7.70 Whiting 14.3 15.40 Kona F-4 feldspar 35.7 38.50 Nepheline syenite 21.4 23.10 EPK 14.3 15.40 Zinc oxide 7.1 7.70 ----- -------- Totals: 100.0 107.80
Also add:
Copper carbonate 0.5 0.50
Comments:
from Sam Chung. Purplish in soda reduction.
Recipe: (Percent, Batch)
Barium carbonate 7.1 7.70 Whiting 14.3 15.40 Kona F-4 feldspar 35.7 38.50 Nepheline syenite 21.4 23.10 EPK 14.3 15.40 Zinc oxide 7.1 7.70 ----- -------- Totals: 100.0 107.80
Also add:
Copper carbonate 0.5 0.50
Comments:
from Sam Chung. Purplish in soda reduction.
Recipe: (Percent, Batch)
Bone ash 1.1 1.10 Talc 7.8 7.80 Whiting 22.4 22.40 Custer feldspar 30.9 30.90 Kaolin 12.6 12.60 Flint 25.3 25.30 ----- -------- Totals: 100.0 100.10
Also add:
Copper carbonate 5.5 5.50
Comments:
Recipe: (Percent, Batch)
Potash feldspar 30.9 30.90 Flint 25.3 25.30 Whiting 22.4 22.40 Talc theoretical 7.8 7.80 EPK 12.6 12.60 Bone ash 1.1 1.10 ----- -------- Totals: 100.0 100.10
Also add:
Copper carbonate 6.5 6.50
Comments:
The best Oribe I've found. A beautiful translucent green. Works best on whire stonewares or porcelains.Rafael Molina-Rodriguez rmr3431@dcccd.edu NOT FOR FOOD USE
Recipe: (Percent, Batch)
Custer feldspar 80.0 80.00 Whiting 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 5.0 5.00
Comments:
It produces nice deep green with, sometimes, metalic shine. submitted by: Kaname Takada e-mail: ktakada@freenet.columbus.oh.us NOT FOR FOOD USE
Recipe: (Percent, Batch)
Potash feldspar 31.8 31.80 Silica 25.7 25.70 Whiting 22.6 22.60 Talc theoretical 7.7 7.70 Kaolin 12.3 12.30 ----- -------- Totals: 100.0 100.10
Also add:
Copper carbonate 5.8 5.80
Comments:
submitted by: Richard Gralnik e-mail: rlg@patuxent.desktalk.com original source El Camino College NOT FOR FOOD USE
Recipe: (Percent, Batch)
Flint 17.3 17.30 OM-4 ball clay 10.8 10.80 Whiting 9.7 9.70 Dolomite 6.5 6.50 Custer feldspar 22.7 22.70 F-4 feldspar 18.9 18.90 Barium carbonate 14.1 14.10 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 8.1 8.10 tin 4.3 4.30 Copper carbonate 6.5 6.50
Comments:
NOT FOR FOOD USE
Recipe: (Percent, Batch)
Custer feldspar 32.0 32.00 Whiting 24.0 24.00 Silica 24.0 24.00 EPK 12.0 12.00 Zinc oxide 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 8.0 8.00
Comments:
Clay Times May/June 2002. Jade green, transparent, glossy glaze. Crazes on some clays when fired at higher temps. Great over white or blue slip. NOT FOR FOOD USE
Recipe: (Percent, Batch)
G-200 feldspar 49.0 49.00 Whiting 15.0 15.00 EPK 12.0 12.00 Flint 24.0 24.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 7.0 7.00
Comments:
From Katheryn Finnerty NOT FOR FOOD USE
Recipe: (Percent, Batch)
Flint 17.5 19.20 Ball clay 10.9 12.00 Whiting 9.5 10.50 Dolomite 6.6 7.30 Barium carbonate 13.6 15.00 Custer feldspar 22.7 25.00 Kona F-4 feldspar 19.1 21.00 ----- -------- Totals: 100.0 110.00
Also add:
Zircopax 8.2 9.00 Copper carbonate 5.5 6.00 Tin oxide 3.6 4.00
Comments:
Shiny, sometimes metallic in soda. From Ruthann Tudball's "Soda Glazing". NOT FOR FOOD USE
Recipe: (Percent, Batch)
Custer feldspar 75.0 75.00 Whiting 15.0 15.00 Flint 5.0 5.00 Kaolin 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 4.0 4.00
Comments:
Opaque chrome green. Known as "Mean Green" in UF shop. If traiiled over Saturated iron glazes, you get a silvery halo where they meet. Variations -- Sarah Jaeger's teal: + 1.5 Chrome + 1 cobalt carb
Recipe: (Percent, Batch)
Nepheline syenite 70.0 70.00 Whiting 5.0 5.00 Gerstley borate 2.0 2.00 Petalite 15.0 15.00 Clay 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Rutile 2.0 2.00
Comments:
Thin = dark almost black; thick = smooth yellow green Amazing glaze! Sometimes shivers. Glaze Type: Na Ca Feldspathic. Opacity: Semi-opaque. Firing type: Ox or Red From Val Cushing. VC ed Pete Pinnell: forest green that breaks with just a hint of blue at edges. Variations -- 1% Cobalt=soft medium blue; 3% Rutile=soft grey blue.
Recipe: (Percent, Batch)
Nepheline syenite 68.8 68.80 Spodumene 10.1 10.10 Whiting 4.6 4.60 EPK 6.5 6.50 Frit 3124 5.7 5.70 Flint 4.3 4.30 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Rutile 2.0 2.00
Comments:
Thin = dark almost black; thick = smooth yellow green Amazing glaze! Sometimes shivers. Glaze Type: Na Ca Feldspathic. Opacity: Semi-opaque. Firing type: Ox or Red From Val Cushing, in John Britt's "High-Fire Glazes" Pete Pinnell: forest green that breaks with just a hint of blue at edges. Variations -- 1% Cobalt=soft medium blue; 3% Rutile=soft grey blue.
Recipe: (Percent, Batch)
Cornwall Stone 71.4 71.43 Whiting 17.1 17.14 Gerstley borate 4.8 4.76 Strontium carbonate 6.7 6.67 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 9.5 9.52 Bentonite 2.0 2.00
Comments:
In my kiln this is a glossy forest/hunter green in the ^9-11 range submitted by: Dave Eitel e-mail: daveitel@execpc.com NOT FOR FOOD USE
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Kona F-4 feldspar 10.8 10.80 Spodumene 15.2 15.20 EPK 10.0 10.00 Soda ash 4.0 4.00 Redart clay 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Potash feldspar 30.0 30.00 Whiting 10.0 10.00 Colemanite 12.0 12.00 Barium carbonate 8.0 8.00 Magnesium carbonate 3.0 3.00 EPK 5.0 5.00 Silica 32.0 32.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 3.0 3.00 Copper carbonate 5.0 5.00 Rutile 5.0 5.00 Bentonite 2.0 2.00
Comments:
A few people asked me for the *original* Sana's Green recipe, so here it is. Richard Gralnik
Recipe: (Percent, Batch)
G-200 feldspar 28.1 26.80 Flint 26.4 25.20 Gerstley borate 19.1 18.20 Wollastonite 11.1 10.60 EPK 6.9 6.60 Strontium carbonate 5.9 5.60 Talc (NY) 2.6 2.50 ----- -------- Totals: 100.0 95.50
Also add:
Bentonite 1.0 1.00 Copper carbonate 4.8 4.60 Tin oxide 3.1 3.00 Rutile 4.8 4.60
Comments:
I have a revised glaze for you. But first let me tell you a bit about your current recipe. As you gave it, this glaze is a high alkaline earth glaze, a bit low in alumina, but otherwise smack in the midfire range c4-c7. It's unusual in the fact that it has 5.2% Titanium oxide and this will cause problems, pinholing being one of them. The glaze is prone to pinholing because there's too much carbonate in the raw materials. The COE at 7.2 is a bit high but it could well fit a stoneware of 6.+ COE. Ok. Here's the new version. This version closely matches the Unity Formula of your original. I have switched to Wollastonite and Talc to reduce the carbonate level. You could also use copper oxide black 40 units, or copper oxide red, 35 units and reduce the carbonate a bit more but the copper oxides are very hard to disperse and you may get speckling if you do not thoroughly screen the mix. The gerstley borate is higher than I'd wish but if I use Ferro frit 3134 (or 3195) in its place the alumina goes up almost 50% and the KNaO content goes up too, increasing the COE to 7.7 or higher; the glaze could craze markedly. The best course would be to try this mix first and see if it gives you the blue-green you want without pinholes. If out-gassing is still a problem, then perhaps one could use half Gerstley B and half 3195. I suggest, if this sits ok with you, that you go this route and see what happens and only make a further revision if needed. Tom BuckSana's Green is actually a C10R recipe that I posted here a while back because I was having pinhole problems with it. Here's the C10R version that Tom put together for me. Richard Los Angeles from richard gralnik
Recipe: (Percent, Batch)
Strontium carbonate 5.4 5.40 Whiting 14.6 14.60 Kona F-4 feldspar 36.5 36.50 Nepheline syenite 21.8 21.80 EPK 14.6 14.60 Zinc oxide 7.2 7.20 ----- -------- Totals: 100.0 100.10
Also add:
Copper carbonate 0.5 0.50
Comments:
From Sam Chung in Clay Times Mar/Apr 2008. Mint in reduction, purple-ish in soda. Variations -- yellow = titanium diox 4%
Recipe: (Percent, Batch)
Custer feldspar 45.0 45.00 Whiting 7.0 7.00 Zinc oxide 10.0 10.00 Strontium carbonate 25.0 25.00 Ball clay 13.0 13.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 5.0 5.00 Rutile 1.0 1.00 Red iron oxide 1.3 1.25
Comments:
From Jeff Oestreich
Recipe: (Percent, Batch)
Kona F-4 feldspar 56.3 56.30 Flint 14.1 14.10 Gerstley borate 7.0 7.00 Lithium carbonate 11.3 11.30 Whiting 11.3 11.30 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 2.1 2.10 Titanium oxide 10.0 10.00
Comments:
Matt opaque surface. Pale shimmery green w/variations. Variations -- plus D-300 Bright Yellow Mason Stain
Recipe: (Percent, Batch)
Cornwall Stone 36.8 36.84 Barium carbonate 7.4 7.37 Whiting 14.7 14.74 Silica 14.7 14.74 Ball clay 26.3 26.32 ----- -------- Totals: 100.0 100.01
Also add:
Red iron oxide 22.1 22.11
Comments:
Another good green for c10 tableware. (I would recommend substituting strontium carb 5.25; I've never tried it this way but I'm sure it would produce the same results) High gloss transparent medium green. Not as much character as the first glaze but hard as a rock and works well with slips under. Both glazes are fired in reduction atmosphere. submitted by: Patrick Veerkamp e-mail: veerkamp@southwestern.edu Richard, I am not sure about the 21% Red Iron Oxide in the second glaze, maybe we will hear from Patrick on it. Rose
Recipe: (Percent, Batch)
Nepheline syenite 42.9 42.90 Flint 23.5 23.50 Whiting 21.4 21.40 EPK 12.2 12.20 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Copper carbonate 6.1 6.10
Comments:
It ranges from a deep steely green to blushes of red. From Val Cushing. gary w. wagonerNOT FOR FOOD USE
Recipe: (Percent, Batch)
Potash feldspar 79.6 79.63 Flint 14.3 14.30 Whiting 6.1 6.07 ----- -------- Totals: 100.0 100.00
Also add:
Iron oxide 2.3 2.26 Tin oxide 0.6 0.62
Comments:
I like this glaze. Don't know where it came from. My appologies to the originator. Give it a try... dan Wilson dwilson@nas.com
Recipe: (Percent, Batch)
Barium carbonate 2.0 2.04 Custer spar 61.2 61.23 Whiting 7.1 7.14 EPK 5.1 5.10 Silica 24.5 24.49 ----- -------- Totals: 100.0 100.00
Also add:
Black iron oxide 1.5 1.53 Bentonite 1.0 1.02
Comments:
from Hal Harold J. McWHINNIE Email:Harold_J_McWHINNIE@umail.umd.edu (hm9) Phone:53125
Recipe: (Percent, Batch)
Kaolin 20.0 20.00 Custer feldspar 50.0 50.00 Dolomite 10.0 10.00 Whiting 10.0 10.00 Flint 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
very nice grey glaze Nice satiny grey that fit perfectly and did not run even where thick. In my tests I always referred to it as E#3. - Brian Harper dswn57e@prodigy.com
Recipe: (Percent, Batch)
Dolomite 34.5 33.33 Custer spar 31.0 30.00 Kentucky OM #4 34.5 33.33 ----- -------- Totals: 100.0 96.66
Comments:
Simple, easy tan. Semi-matt. I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
Redart 72.0 72.00 Whiting 10.0 10.00 Soda feldspar 8.0 8.00 Talc 5.0 5.00 EPK kaolin 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
I can tell no difference in Rhodes Black made with this substitute and real Albany Slip. David Hendley Maydelle, Texas See David Hendley's Pottery Page at http://ww.sosis.com/hendley/david
Recipe: (Percent, Batch)
Minspar Soda Feldspar 57.0 57.00 EPK 9.0 9.00 Redart 25.0 25.00 Dolomite 6.5 6.50 Whiting 2.5 2.50 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 5.0 5.00 Manganese dioxide 3.7 3.70 Cobalt oxide 1.3 1.30
Comments:
This glaze is well balanced and has plenty of silica, but with all those metals, I don't use it on food surfaces. My 'Rhodes Black' is quite different than yours. I've modified it over the years. It uses much less cobalt, and manganese and iron take up the slack. I've tried cutting back even farther on cobalt, but this seems to be the minimum. I use and like 3 pound coffee can for materials that are used in small quantities. Because of the wide opening, so you can easily scoop out material with a scoop. David Hendley Maydelle, Texas See David Hendley's Pottery Page at http://ww.sosis.com/hendley/david
Recipe: (Percent, Batch)
Ferro frit 3110 52.1 52.08 Zinc oxide 26.0 26.04 Silica 20.8 20.83 China clay 1.0 1.04 ----- -------- Totals: 100.0 99.99
Also add:
Titanium dioxide 5.2 5.21
Comments:
Note that this glaze did not have a cone specified, but it appears to be a cone 9 glaze. I do not have experience with crystalline glazes but I do know of an excellent article that appeared in Ceramic Review No.137 (Sept/Oct 1992) by Derek Clarkson. His recipes are all based on the previous approximate percentages. The china clay was listed as China Clay/Alumina Colouring Oxides - cobalt, copper and manganese most often used, followed by iron and nickel. The article gives ten specific recipes around the above with colour illustrations to show the very dramatic crystal effects. For each of these examples the article also gives the firing details of the times of crystal growing periods and the diameter of the largest crystal. There is also a mass of detail on the application of the glazes with copious illustrations. Derek Clarkson says that Porcelain bodies are the most suitable. White stoneware bodies can also be used but the crystals are smaller. If you are unable to get sight of a copy of this article please contact me by e-mail if you want further information. submitted by: David Hewitt e-mail: david@dhpot.demon.co.uk
Recipe: (Percent, Batch)
Cornwall Stone 45.0 45.05 China clay 19.8 19.82 Dolomite 20.7 20.72 Whiting 5.4 5.41 Talc 9.0 9.01 ----- -------- Totals: 100.0 100.01
Comments:
Originally specified Cornish stone insteadh of Cornwall stone. I routinely use a glaze which I fire to cone 8 oxidation which is matt and which I apply over coloured slips. These colours show through the glaze, if that meets your requirement of 'clear'. I use it over a buff stoneware and describe the colour as light oatmeal. If an area is double dipped it comes out whiter so it is sensitive to thickness and drips or runs want to be avoided unless the variation in thickness and colour suits your pot. If I fire above cone 8 it progresses to being shiny. I think it would be the same in reduction. --- 111 total UNITY FORMULA K2O .045 Al2O3 .346 SiO2 1.943 Na2O .071 MgO .442 CaO .442 COEFF of EXPANSION McLindon 5.87 x 10 -6 C Linear or 2.93 x 10 -7 % English & Turner 4.63 x 10 -6 C Linear or 2.31 x 10 -7 % David HewittDavid Hewitt David Hewitt Pottery Caerleon, Tel:- 01633 420647 7 Fairfield Road, Caerleon, Newport, South Wales, UK. URL http://digitalfire.com/magic/hewitt.htm
Recipe: (Percent, Batch)
Custer feldspar 35.0 35.00 Wood ash 35.0 35.00 EPK 15.0 15.00 Dolomite 15.0 15.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 5.0 5.00
Comments:
originally specified Charcoal Briquette Ash is that is unwashed. submitted by: June Perry e-mail: GURUSHAKTI@aol.com
Recipe: (Percent, Batch)
Potash feldspar 37.5 37.50 Flint 26.8 26.80 Whiting 15.7 15.70 Ball clay 10.7 10.70 Barium carbonate 5.5 5.50 Gerstley borate 3.8 3.80 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 9.8 9.80 Manganese dioxide 3.6 3.60 Bentonite 2.0 2.00
Comments:
Dark brown, glaze. Runs above cone 9 and if thick. It is a beautiful glaze which is translucent with incredible depth, appearing like honey. Sam aphesis@interpac.net
Recipe: (Percent, Batch)
Potash feldspar 36.7 36.70 Flint 25.5 25.50 Whiting 18.9 18.90 Ball clay 9.2 9.20 Soda feldspar 5.1 5.10 Kaolin 2.6 2.60 Dolomite 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.0 8.00
Comments:
This is a dark glaze the can obscure slip and carving if thick. Good glaze surface. I've tried both of these glazes with mixed results. The amber celadon is almost identical to Cushing Amber Celadon. This is a better transparent amber honey glaze. RafaelMolina-Rodriguez rmr3431@dcccd.edu Variations -- +6% RIO= greener brown color 4% RIO = grey-green color like a celadon.
Recipe: (Percent, Batch)
Soda feldspar 54.6 54.55 Whiting 9.1 9.09 EPK 18.2 18.18 Dolomite 9.1 9.09 Flint 9.1 9.09 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 0.9 0.91 Chrome oxide 1.8 1.82
Comments:
Good luck. Barbara Murphy, dave murphyWaterloo, Ontario I use this green in ^10 reduction but it translates very well to ox. It is not reduction sensitive and is very reliable.
Recipe: (Percent, Batch)
Alberta Slip 45.0 45.00 Whiting 25.0 25.00 Silica 20.0 20.00 Custer feldspar 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 23.0 23.00
Comments:
Recently, I was lucky enough to be given a great recipe for a cone 10 Albany-type clear with a nice glassy transparent surface. I believe it was one of Val Cushing's old glazes (what great glaze doesn't seem to have come from Val's extensive glaze coffers?!). Anyhow, having replaced the Albany with Alberta, I have been running color tests on this glaze for the past 6 months. Will it ever stop- I doubt it. One of the most interesting surfaces, both in color and in texture, was done with 5% Laguna Forest Green stain. I have no idea where this stain came from- unfortunately the bag looked rather old. Keep it pretty ding-dang thin, else you're likely to be chipping shelves. submitted by: Jeremy Nudell Kalin, e-mail: kali0015@gold.tc.umn.edu
Recipe: (Percent, Batch)
Potash feldspar 39.5 39.48 Talc theoretical 6.2 6.15 Whiting 11.8 11.79 Kaolin 9.2 9.20 Silica 33.4 33.38 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 12.0 11.99
Comments:
Frank Martin Art Deparment/Ceranics 92nd street YM-YWHA 1395 Lexington Ave NY, NY. 10128 p0tters2@aol.com
Recipe: (Percent, Batch)
Bone ash 4.3 4.32 Talc theoretical 5.0 4.98 Frit 3134 2.0 1.99 Custer feldspar 29.9 29.90 Nepheline syenite 54.8 54.82 EPK 4.0 3.99 ----- -------- Totals: 100.0 100.00
Comments:
BIG crackle when thick. John Britt in Ceramics Mo. Nov. 2011. NOt recommended for functional ware. Glaze both sides of ware, as uneven pressure may cause dunting. Bone ash may cause flocculation and the raw glaze will crack off. Deflocculate if needed. Apply thick. Additions of color > 1% will stop crackle formation.
Recipe: (Percent, Batch)
Custer spar 38.9 38.89 Ball clay 18.9 18.89 Whiting 13.3 13.33 Flint 21.1 21.11 Dolomite 7.8 7.78 ----- -------- Totals: 100.0 100.00
Also add:
Iron chromate 2.2 2.22 Cobalt carbonate 0.6 0.56
Comments:
This is a nice dark blue glaze that dosen't run it is some what shinney. I hope that all these help you and whom ever else might need them. Jennifer Alpine, TX jennifer rhinesmith
Recipe: (Percent, Batch)
China clay 6.8 6.83 Potash feldspar 50.7 50.73 Flint 14.6 14.63 Whiting 2.4 2.44 Bone ash 14.6 14.63 Talc theoretical 10.7 10.73 ----- -------- Totals: 100.0 99.99
Also add:
Red iron oxide 9.8 9.76
Comments:
David HewittDavid Hewitt Pottery Caerleon, Newport, Gwent, UK.
Recipe: (Percent, Batch)
Potash feldspar 45.9 45.92 Whiting 17.3 17.35 Kaolin 13.3 13.27 Silica 23.5 23.47 ----- -------- Totals: 100.0 100.01
Also add:
Red iron oxide 13.3 13.27
Comments:
This glaze is more typical of what is known as 'Iron Rust', breaking from black to brown more consistently. Consequently it is good for highlighting texture, incising, throw rings etc.. The following ar two Tenmoku's that I have used with continued success. David Stuchbery School of Art & Design Ph (054) 447-279 La Trobe University, Bendigo d.stuchbery@bendigo.latrobe.edu.au
Recipe: (Percent, Batch)
Soda feldspar 50.0 50.00 EPK 20.0 20.00 Magnesium carbonate 10.0 10.00 Whiting 10.0 10.00 Flint 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 2.0 2.00 Manganese dioxide 1.0 1.00
Comments:
from Naama Satin deep blue going to tan where thick. Feels wonderful and buttery Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Kaolin 22.0 22.00 Potash feldspar 36.0 36.00 Dolomite 18.0 18.00 Whiting 4.0 4.00 Colemanite 4.0 4.00 Silica 16.0 16.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 5.0 5.00
Comments:
Firing: firing type: reduction or oxidation This is a great glaze on stoneware it is a shiny black which breaks to gold on texture or rims. On red body it is especially beautiful. On porcelin it becomes runny if too thick but is a beautiful soft grey breaking to black on texture or on rims etc. This glaze has never failed to surprise me in every firing of it. submitted by: PEGGY HEER email: p4337@freenet.edmonton.ab.ca
Recipe: (Percent, Batch)
Potash feldspar 72.0 72.10 EPK 4.8 4.80 Wood ash 5.8 5.80 Rice hull ash 4.8 4.80 Silica 1.0 1.00 Nepheline syenite 7.7 7.70 Tin oxide 1.9 1.90 Ky white glaze clay 1.0 1.00 Lithium carbonate 1.0 1.00 ----- -------- Totals: 100.0 100.10
Comments:
Clat Times May/June 2002. Produces shiny, white, fat glaze with character.
Recipe: (Percent, Batch)
Custer feldspar 60.7 60.68 Kaolin 5.3 5.33 Dolomite 9.9 9.94 Ball clay 9.1 9.10 Barium carbonate 5.3 5.33 Whiting 4.8 4.81 Silica 4.8 4.81 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.1 2.09 Rutile 4.5 4.50
Comments:
NOTE: use powdered rutile, not granular Here is a C10 reduction recipe for a blue/purples you may like: submitted by: Richard Gralnik e-mail: rlg@desktalk.com
Recipe: (Percent, Batch)
Red Art clay calcined 62.0 61.95 Custer feldspar 17.7 17.70 Silica 8.8 8.85 Kaolin 2.6 2.65 Dolomite 5.3 5.31 Bone ash 3.5 3.54 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.6 2.65
Comments:
Here is another Kaki I use over clear and wax resist. This is sometimes more metallic red than Reeve Mashiko, but covers (stays opaque over) the clear better. submitted by: Lee: leelove@MILL2.MILLCOMM.COM
Recipe: (Percent, Batch)
Kona F-4 feldspar 45.0 45.00 Dolomite 18.0 18.00 Whiting 4.0 4.00 EPK 9.0 9.00 Calcined kaolin 10.0 10.00 Flint 10.0 10.00 Bone ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 4.0 4.00 Red iron oxide 1.0 1.00
Comments:
Color: on porcelain in OX THIN = warm rusty beige breaking to copper rust on rim & ridges THICK = warm beige w/ copper rusty rim Both thin & thick show very fine rusty flecks On porcelain in REDTN THICK = almost sea foam greenish w/ orangey copper rust w/ flecks where thin I consider this to be a glaze which in OX looks like REDTN - for those of you who pine for that. As I previously mentioned, in OX put it over PORCELAIN SHINO & you get a funky rough surface in solid copper w/ fine rusty flecks - this is thin. Thick edges are unattractive (?) white. If firing in REDTN, slow cool for max. orange. This is a variant of the famous Mamo glaze. If you want to try other colorants, drop out the tin (it's incl. to promote ornage) from the base as well as dropping the RIO & bone ash. But BE CAREFUL - this glaze pulls apart if too thick in big fatal crawls. I abandoned it as a white for this reason & I swear it once pulled so badly it broke (?) the pot it was on. This was not the above version however. Good luck & enjoy. Karen Gringhuis kgpottery@bigvax.alfred.edu
Recipe: (Percent, Batch)
Kona F-4 feldspar 22.7 22.73 Whiting 18.2 18.18 Ball clay 29.5 29.55 Quartz 29.5 29.55 ----- -------- Totals: 100.0 100.01
Also add:
Red iron oxide 13.6 13.64 Bentonite 2.3 2.27
Comments:
Frank Martin Art Deparment/Ceranics 92nd street YM-YWHA 1395 Lexington Ave NY, NY. 10128 p0tters2@aol.com
Recipe: (Percent, Batch)
Potash feldspar 65.0 65.00 Ball clay 13.0 13.00 Whiting 11.0 11.00 Zinc oxide 10.0 10.00 Barium carbonate 1.0 1.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 3.0 3.00 Rutile 2.5 2.50 Copper carbonate 0.4 0.40 Bentonite 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Kona F-4 Spar 40.0 40.00 Barium carbonate 30.0 30.00 EPK 8.0 8.00 Flint 10.0 10.00 Dolomite 12.0 12.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 6.0 6.00
Comments:
Thin-dry rusty type. Medium-yellowish colors. Thick-smooth warm brown to yellow brown. Greenish overtones. Glaze Type: Ba Ca. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer feldspar 27.0 27.00 OM-4 Ball clay 14.0 14.00 Whiting 20.5 20.50 Silica 31.5 31.50 Kaolin 7.0 7.00 ----- -------- Totals: 100.0 100.00
Comments:
Light Green on porcelain ^9-10 submitted by: Lee in PigsEye e-mail: leelove@MILL2.MILLCOMM.COM
Recipe: (Percent, Batch)
Custer feldspar 20.0 20.00 Kona F-4 feldspar 22.0 22.00 Dolomite 10.0 10.00 Grolleg 20.0 20.00 Flint 12.0 12.00 Talc 8.0 8.00 Whiting 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Cerdec Intensive Red stain 12.0 12.00
Comments:
From Peter Beasecker
Recipe: (Percent, Batch)
Barium carbonate 2.0 2.02 Calcined Zinc Oxide 4.0 4.04 Lithium carbonate 2.0 2.02 Whiting 14.1 14.14 Custer feldspar 50.5 50.51 Ferro frit 3134 7.1 7.07 Silica, (325 mesh) 20.2 20.20 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 0.6 0.61 Tin oxide 1.0 1.01 Bentonite 1.0 1.01
Comments:
GREAT BLUE/RED /DARK BLUE! My experience with copper red is that what matters most is to begin reduction at cone 012 fairly heavy and then go into moderate reduction after cone 05 drops. Continue moderate to light reduction until cone 10 then a brief oxidation peroid of about 10 minutes. If you over reduce it will be liver brown and under reduced will be celadon. submitted by: John Britt e-mail: claydude@erinet.com
Recipe: (Percent, Batch)
China clay 10.0 10.00 Whiting 20.0 20.00 Silica 30.0 30.00 Feldspar 40.0 40.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 4.0 4.00
Comments:
The glaze that is as old as dirt. it is published in the leech book as old. Use 4% iron + or - depending on color / green to blue if you decorate...put iron design between layers of glaze. very nice. the first glaze i ever made...fired in the first soft brick kiln i ever made. and that was before i had ever seen a soft brick kiln. remember the name Jim McKinnel. one of the first to build soft brick kilns in america. from iowa...one of the real pioneers. mel jacobson
Recipe: (Percent, Batch)
G-200 feldspar 57.9 57.89 Whiting 23.2 23.16 Gerstley borate 4.2 4.21 Flint 14.7 14.74 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 3.2 3.16 Cobalt carbonate 1.1 1.05 Manganese dioxide 0.5 0.53
Comments:
handed over by Bob Santerre Glossy medium blue where thick and glossy slate blue where thin. Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Nepheline syenite 62.1 62.10 Strontium carbonate 20.8 20.80 Lithium carbonate 2.7 2.70 Ball clay 8.0 8.00 Flint 6.4 6.40 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 0.5 0.50
Comments:
From Kathryn Finnerty Variations -- Blue = + CuCO3 8 instead of Cr
Recipe: (Percent, Batch)
Whiting 19.5 19.50 Custer feldspar 63.5 63.60 EPK 17.0 17.00 ----- -------- Totals: 100.0 100.10
Also add:
Cobalt carbonate 0.9 0.90 Rutile 4.0 4.00
Comments:
Here's a couple that I have tried and added to my regulars. If you want a soft matt blue, try the Long Beach Blue. The Long Beach is terrible if applied too thin. Good luck. Chris Fennimore Native American Rights Fund Boulder, CO christine fennimore
Recipe: (Percent, Batch)
Talc theoretical 14.3 14.20 Whiting 3.4 3.40 Spodumene 47.5 47.00 Kaolin 5.6 5.50 Silica 29.2 28.90 ----- -------- Totals: 100.0 99.00
Also add:
Bentonite 1.0 1.00
Comments:
Calls for 200 mesh silica and white talc. From a Ceramics Mo article on Flameware May 2011.
Recipe: (Percent, Batch)
Whiting 29.0 29.00 Kentucky OM #4 30.0 30.00 Flint 29.0 29.00 Custer feldspar 12.0 12.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 17.6 17.65
Comments:
Nice wet and dry glaze. Runs. From Peter Beasecker. Great in salt and soda.
Recipe: (Percent, Batch)
Feldspar 41.0 41.00 Colemanite 12.0 12.00 Dolomite 7.0 7.00 Talc 15.0 15.00 Ball clay 5.0 5.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Morning all...I've been talking to June about some glazes and it turns out we both are aware of an old Carleton Ball glaze. She from remembered association; me from checking an old copy I have of the typescript of his syllabus. What we were both looking at is the above glaze My text immedaitely following reads: Bright transparent glazes allow colors to show well but in general....etc This appears on pg 47. of my typescript. Unfortunately, pg. 46 is missing of my copy as well as pp. 40-44. I inherited the typescript from a teacher and am delighted I've got it (it even includes class responsibilities and where to keep tools take care of glazes etc.) but I sure would like the missing pages. If anybody has them, I'd be thrilled to send a self-addressed stamped envelope for a copy and the xeroxing costs. At this point, I haven't any info on the colorants to add to the glazes? TIA Emily in Astoria where my head is clogged, I can't breathe, those lousy flowers are everwhere and the sun it still don't shine. How DO they GROW?
Recipe: (Percent, Batch)
Feldspar 41.0 41.00 Colemanite 12.0 12.00 Dolomite 7.0 7.00 Talc 15.0 15.00 Ball clay 5.0 5.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Morning all...I've been talking to June about some glazes and it turns out we both are aware of an old Carleton Ball glaze. She from remembered association; me from checking an old copy I have of the typescript of his syllabus. What we were both looking at is the above glaze My text immedaitely following reads: Bright transparent glazes allow colors to show well but in general....etc This appears on pg 47. of my typescript. Unfortunately, pg. 46 is missing of my copy as well as pp. 40-44. I inherited the typescript from a teacher and am delighted I've got it (it even includes class responsibilities and where to keep tools take care of glazes etc.) but I sure would like the missing pages. If anybody has them, I'd be thrilled to send a self-addressed stamped envelope for a copy and the xeroxing costs. At this point, I haven't any info on the colorants to add to the glazes? TIA Emily in Astoria where my head is clogged, I can't breathe, those lousy flowers are everwhere and the sun it still don't shine. How DO they GROW?
Recipe: (Percent, Batch)
Potash feldspar 53.2 53.30 Whiting 4.4 4.40 Dolomite 20.7 20.70 Kaolin 21.7 21.70 ----- -------- Totals: 100.0 100.10
Also add:
Tin oxide 8.7 8.70
Comments:
The version I have does all the things that are described by other clayarters...thick..more white, use on red body(iron body), reduction fire, breaks rust on rims etc etc etc. Cone 10. It is exactly like the photo in CM. It is a wonderful glaze. submitted by: Peggy Heer/Heer Pottery e-mail: p4337@freenet.edmonton.ab.ca or p4337@connect.ab.ca
Recipe: (Percent, Batch)
Kona F-4 Feldspar 58.8 58.82 Dolomite 23.5 23.53 Whiting 4.7 4.71 Calcined kaolin 12.9 12.94 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 5.9 5.88
Comments:
Thin rust, thicker cream, etc. submitted by: Dannon Rhudy e-mail: dannon@ns1.koyote.com
Recipe: (Percent, Batch)
Kona F-4 Spar 25.0 25.00 Custer feldspar 25.0 25.00 Dolomite 20.0 20.00 Whiting 5.0 5.00 EPK 10.0 10.00 Calcined kaolin 15.0 15.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 6.0 6.00
Comments:
This is not a liner. Breaks where thin to rust, toast color. Dan Rhodes White Matt. Rich dark purple-.5 Cobalt. Try Ilmenite 2 and Rutile 2. Base is lovely with body coming through. Over dark clay is beautiful. Glaze Type: Ca Mg AlMatt. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Potash feldspar 84.0 84.10 Whiting 4.7 4.70 Talc 1.6 1.60 EPK 5.3 5.30 Silica 4.4 4.40 ----- -------- Totals: 100.0 100.10
Also add:
Red iron oxide 1.0 1.00 Manganese dioxide 25.0 25.00
Comments:
From Ken Walters. Not for food surfaces.
Recipe: (Percent, Batch)
Cedar Heights Redart 80.0 80.00 Spodumene 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
The spodumene is Gwalia spod. fr. Australia. On porcelain this is a gloss mahogany-brown, or blacker where thicker, with some nice teadust flecks; breaking amber-straw color where it thins out on rims. On buff-white stoneware it's a slightly-reddish brown if single dipped & blacker if double-dipped, both colors with nice gradations & flecking. (not an oilspot really, at least in my firing, but a tenmoku with depth). submitted by: Marcia Kindlmann e-mail: marcia@design.eng.yale.edu
Recipe: (Percent, Batch)
Barium carbonate 9.0 9.00 Gerstley borate 2.5 2.50 Lithium carbonate 2.5 2.50 Strontium carbonate 9.5 9.50 Wollastonite 1.0 1.00 Frit 3110 13.1 13.00 Nepheline syenite 14.1 14.00 Grolleg 11.1 11.00 Silica 37.2 37.00 ----- -------- Totals: 100.0 99.50
Comments:
Updated version of Andy Martin's Show Saver glaze. Andy Martin, Ceramics Mo. Jan '11. Variations -- French chartreuse +.5 Chrome Victoria Green + chrome ox .5 + copper carb.75 Brazillian Green + chrome ox .5 + copepr carb 1.75 Turkish Green +copper carb 2 Aegean Blue + copper carb 2 + cobalt carb .1 Maroon + manganese carb 2 Orchard Purple + manganese carb 2 + cobalt carb 2 Persian Blue = cobalt carb 1 + manganese carb .5 Clear Black-Gray + black nickel oxide 1 + cobalt carb .25
Recipe: (Percent, Batch)
Kentucky OM #4 12.3 12.31 Calcined kaolin 12.1 12.10 Kona F-4 feldspar 33.6 33.62 Bone ash 0.5 0.53 Talc 5.6 5.57 Wollastonite 7.0 6.96 Silica 28.9 28.91 ----- -------- Totals: 100.0 100.00
Also add:
Titanium dioxide 0.5 0.53 Manganese dioxide 0.2 0.21 Red iron oxide (Spanish) 6.9 6.85
Comments:
I use Reeve's synth Mashiko over a clear glaze and wax resist. John recalculated from an analysis of Mashiko stone. I got the the following two glazes from the Canadian Potter, John Reeve: I saw it looking over his shoulder at his glaze notebook while he was looking for another glaze. :^) I _did_ ask if I could copy it! ;^) source for original recipe: John Reeve submitted by: Lee in PigsEye e-mail: leelove@MILL2.MILLCOMM.COM
Recipe: (Percent, Batch)
Custer feldspar 36.2 36.00 Flint 26.1 26.00 Magnesium carbonate 15.1 15.00 Whiting 13.1 13.00 Ball clay 5.0 5.00 Zinc oxide 2.5 2.50 Barium carbonate 2.0 2.00 ----- -------- Totals: 100.0 99.50
Also add:
Bentonite 2.0 2.00
Comments:
Add epsom salts 3% to flocculate. From Laura Aultman.
Recipe: (Percent, Batch)
Nepheline syenite 60.0 60.00 Lithium carbonate 1.0 1.00 Ball clay 10.0 10.00 Strontium carbonate 20.0 20.00 Flint 9.0 9.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
Pete Pinnell. Flocculate w/Epsom salts or Muriatic Acid to avoid settling. Works well from c6- 11, oxid or reduction. Variations -- green: copper carb 5 + titanium diox. 5 grey: titanium diox. 5 turquoise: copper carb 5
Recipe: (Percent, Batch)
Cornwall Stone 45.0 45.05 EPK 19.8 19.82 Dolomite 20.7 20.72 Whiting 5.4 5.41 Talc 9.0 9.01 ----- -------- Totals: 100.0 100.01
Comments:
I regularly use a glaze at cone 8 over coloured slips which is matt but lets the coloured slips show through. This is in oxidation over a buff stoneware glaze. In case this sounds what you are after and interesting to you, I give the recipe below, which I have translated from the UK sourced materials that I use, into North American materials. Actually the difference is very small. David HewittDavid Hewitt Pottery Caerleon, Newport, Gwent, UK. URL http://digitalfire.com/magic/hewitto.htm % Weight Ananlysis SiO2 56.94, P2O5 0.29, Al2O3 17.58, Fe2O3 0.29, MgO 8.82, CaO 12.07, Na2O 1.77, K2O 2.38.
Recipe: (Percent, Batch)
Custer feldspar 23.6 23.60 Dolomite 28.2 28.20 Kaolin 28.2 28.20 Whiting 13.6 13.60 Silica 6.4 6.40 ----- -------- Totals: 100.0 100.00
Comments:
Does anyone have a glaze that is or looks very much like the glaze on Ken Ferguson's casserole on page 58 of the current (June) CM. I'm not promising the rights to my firstborn, but I'd sure be grateful! Looks to me like a typical matte like Cushing Matte which follows, over a body with pretty good chunks of Manganese Dioxide in it. This glaze, probably from Val Cushing, easily dates from that period. Cone 9-10 reduction submitted by: Brad Sondahl e-mail: Sondahl@aol.com
Recipe: (Percent, Batch)
Custer feldspar 28.5 28.50 Dolomite 19.0 19.00 Kaolin 28.5 28.50 Whiting 14.3 14.30 Flint 9.7 9.70 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt oxide 0.5 0.50 Ilmenite 1.5 1.50
Comments:
Recipe: (Percent, Batch)
Nepheline syenite 52.6 52.60 Strontium carbonate 15.8 15.80 Wollastonite 10.5 10.50 Talc theoretical 5.3 5.30 Whiting 5.3 5.30 Ball clay 10.5 10.50 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 3.0 3.00 Red iron oxide 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Custer feldspar 46.0 46.00 Whiting 17.3 17.30 Tile 6 clay 14.9 14.90 Strontium carbonate 12.6 12.60 Frit 3124 4.6 4.60 Lithium carbonate 4.6 4.60 ----- -------- Totals: 100.0 100.00
Also add:
Titanium dioxide 13.8 13.80 Bentonite 2.0 2.00
Comments:
Clay Times Jan/Feb 2007 p 53. Steven Hill glaze. White matt w/golden crystals, best at a hot cone 10
Recipe: (Percent, Batch)
Custer feldspar 40.1 40.10 Magnesium carbonate 8.2 8.20 Whiting 16.2 16.20 EPK 8.4 8.40 Flint 27.1 27.10 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax Plus 0.5 0.50
Comments:
From Kate Murray:remember it's very changeable according to thickness: transparent/opaque, satin/matte, and counter-intuitive somehow. Also, it makes purple with cobalt. The woman I got it from used to decorate on top with brushed black & copper reds, with good results.
Recipe: (Percent, Batch)
Custer feldspar 23.6 23.60 Dolomite 28.2 28.20 Kaolin 28.2 28.20 Whiting 13.6 13.60 Silica 6.4 6.40 ----- -------- Totals: 100.0 100.00
Comments:
This glaze,probably from Val Cushing, easily dates from that period. Cone 9-10 reduction submitted by: Brad Sondahl e-mail: Sondahl@aol.com
Recipe: (Percent, Batch)
Potash feldspar 64.8 64.90 Ball clay 12.8 12.80 Whiting 11.1 11.10 Zinc oxide 10.0 10.00 Barium carbonate 1.3 1.30 ----- -------- Totals: 100.0 100.10
Also add:
Red iron oxide 3.1 3.10 Rutile 2.5 2.50 Copper carbonate 0.4 0.40 Bentonite 2.0 2.00
Comments:
Orange, blue, & green.
Recipe: (Percent, Batch)
Nepheline syenite 60.0 60.00 Lithium carbonate 1.0 1.00 Ball clay 10.0 10.00 Strontium carbonate 20.0 20.00 Flint 9.0 9.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
Pete Pinnell. Flocculate w/Epsom salts or Muriatic Acid to avoid settling. Works well from c6- 11, oxid or reduction. Variations -- green: copper carb 5 + titanium diox. 5 grey: titanium diox. 5 turquoise: copper carb 5
Recipe: (Percent, Batch)
Nepheline syenite 28.3 58.00 Strontium carbonate 12.7 26.00 Lithium carbonate 0.5 1.00 Kentucky OM #4 7.3 15.00 Flint 2.4 5.00 Nepheline syenite 48.8 100.00 ----- -------- Totals: 100.0 205.00
Comments:
Recipe: (Percent, Batch)
Custer feldspar 21.1 21.14 Dolomite 21.1 21.14 Kaolin 21.1 21.14 Whiting 12.2 12.20 Pemco frit P-25 12.2 12.20 Silica 12.2 12.20 ----- -------- Totals: 100.0 100.02
Also add:
Bentonite 2.4 2.44
Comments:
Firing: firing type: oxidation or reduction I modified (Cushing Matte) it to make one which works at cone 8, and looks good with iron slips in oxidation or reduction submitted by: Brad Sondahl e-mail: Sondahl@aol.com
Recipe: (Percent, Batch)
Custer feldspar 21.1 21.14 Dolomite 21.1 21.14 Kaolin 21.1 21.14 Whiting 12.2 12.20 Pemco frit P-25 12.2 12.20 Silica 12.2 12.20 ----- -------- Totals: 100.0 100.02
Also add:
Bentonite 2.4 2.44
Comments:
Firing: firing type: oxidation or reduction I modified (Cushing Matte) it to make one which works at cone 8, and looks good with iron slips in oxidation or reduction submitted by: Brad Sondahl e-mail: Sondahl@aol.com
Recipe: (Percent, Batch)
Gerstley borate 50.0 50.00 EPK 15.0 15.00 Flint 35.0 35.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 20.0 20.00 Chrome oxide 10.0 10.00 Cobalt carbonate 10.0 10.00
Comments:
from Clayart about a year ago Deep teal over white slip. other wise dark blue/black where thick. Brown where thin. Crawled slightly over the slip. Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Redart 85.7 60.00 Ball clay 7.1 5.00 Flint 7.1 5.00 ----- -------- Totals: 100.0 70.00
Also add:
Manganese dioxide 64.3 45.00 Copper oxide 7.1 5.00 Cobalt oxide 7.1 5.00
Comments:
RUNS a lot at cone 10. Waxy to matt metallic. TOXIC. Bronze to dk brown.
Recipe: (Percent, Batch)
Custer spar 80.7 80.70 Kona F-4 feldspar 3.5 3.50 Dolomite 1.8 1.80 Whiting 1.2 1.20 Ball clay 5.7 5.70 Flint 7.1 7.10 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 1.0 1.00 Manganese dioxide 30.0 30.00 Bentonite 2.0 2.00
Comments:
Pete Pinnell: one of the nicest manganese luster versions. NOT for use on food contact surfaces. Manganese: Toxic!
Recipe: (Percent, Batch)
Wood Ash 25.0 25.00 Nepheline syenite 37.5 37.50 Talc 18.8 18.75 Ball clay 18.8 18.75 ----- -------- Totals: 100.0 100.00
Also add:
Iron oxide 2.5 2.50 Black copper oxide 3.8 3.75 Cobalt oxide 2.9 2.92
Comments:
Other colors (delete black colorants): for matt brown with lots of texture add: Rutile 1.74 Iron Oxide 3.50 Manganese Dioxide 3.50 for matt blue breaking to something greenish add: Cobalt Carbonate 3.00 Rutile 3.00 I've been using the same wood ash formula for about 10 years and have used wood ash from all kinds of known and unknown tree sources (washed and unwashed), fired to cone 6, 7, 8, 9 but mostly to cone 7 in an electric kiln. Write me if you have any questions about these glazes submitted by: Anne Fallis-Elliott e-mail: FallisT@aol.com
Recipe: (Percent, Batch)
Potash feldspar 25.7 25.72 Ball clay 27.9 27.88 Whiting 18.5 18.52 Flint 27.9 27.88 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 11.3 11.32
Comments:
The following Tessha Glaze recipe is from the Feb '96 issue of Ceramics Monthly. (Can be applied to leather hard pots for once firing.) dennis davis
Recipe: (Percent, Batch)
Kona F-4 feldspar 48.0 48.00 EPK 11.2 11.20 Barium carbonate 35.7 35.70 Flint 5.1 5.10 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Chromium oxide 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Flint 31.0 31.00 Whiting 20.0 20.00 G-200 feldspar 33.0 33.00 EPK 14.0 14.00 Spodumene 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 7.0 7.00
Comments:
from Ellen Baker Very deep dark glossy blue Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
EPK 15.4 15.38 Whiting 15.4 15.38 Custer feldspar 30.8 30.77 Silica 38.5 38.46 ----- -------- Totals: 100.0 99.99
Comments:
Recipe: (Percent, Batch)
Barium carbonate 8.3 7.70 Whiting 16.7 15.40 Kona F-4 feldspar 41.7 38.50 EPK 25.0 23.10 Zinc oxide 8.3 7.70 ----- -------- Totals: 100.0 92.40
Also add:
Copper carbonate 0.5 0.50 Bentonite 2.2 2.00
Comments:
From Sam Chung.
Recipe: (Percent, Batch)
Barnard clay 36.0 36.00 Custer feldspar 22.0 22.00 Gerstley borate 3.0 3.00 Wollastonite 14.0 14.00 Whiting 8.0 8.00 Flint 14.0 14.00 EPK 3.0 3.00 ----- -------- Totals: 100.0 100.00
Comments:
From Allegheny Meadows
Recipe: (Percent, Batch)
Kaolin - theoretical 11.2 11.20 Custer feldspar 26.9 26.90 Dolomite 1.4 1.40 Wollastonite 24.9 24.90 Silica 26.0 26.00 Frit 3124 9.6 9.60 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 6.0 6.00 Manganese carbonate 2.2 2.20 Titanium dioxide 0.3 0.30
Comments:
From Allegheny Meadows. Re-calculated to elimiate GB and Barnard.
Recipe: (Percent, Batch)
Custer feldspar 34.9 34.90 Dolomite 15.4 15.40 Whiting 5.3 5.30 EPK 9.4 9.40 Silica 35.0 35.00 ----- -------- Totals: 100.0 100.00
Also add:
Black iron oxide 1.0 1.00 Cobalt carbonate 0.2 0.20 Chromium oxide 0.2 0.20
Comments:
UF Shop glaze. Buttery dull green with small brown spots. Dependable.
Recipe: (Percent, Batch)
Cornwall Stone 63.8 63.80 Gerstley borate 14.3 14.30 Flint 7.6 7.60 Whiting 7.6 7.60 EPK 4.8 4.80 Zinc oxide 1.9 1.90 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 3.2 3.20 Ilmenite, Powdered 2.0 2.04
Comments:
Here's a couple that I have tried and added to my regulars (both come from clayart folks). The Moonlight will run if applied to thick. If you are looking for a shiny glaze try the Moonlight. Chris Fennimore Native American Rights Fund Boulder, CO christine fennimore
Recipe: (Percent, Batch)
Nepheline syenite 57.4 57.35 Kaolin 26.0 26.03 Lepidolite 15.6 15.62 Soda ash 1.0 1.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Potash spar 40.0 40.00 Flint 25.0 25.00 Gerstley borate 10.0 10.00 Dolomite 10.0 10.00 Frit 3110 5.0 5.00 EPK 5.0 5.00 Whiting 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 0.0 0.02
Comments:
This is a wonderful blue that doesn't run. I hope that all these help you and whom ever else might need them. Jennifer Alpine, TX jennifer rhinesmith
Recipe: (Percent, Batch)
----- -------- Totals: 0.0 0.00
Comments:
Recipe: (Percent, Batch)
----- -------- Totals: 0.0 0.00
Comments:
Recipe: (Percent, Batch)
----- -------- Totals: 0.0 0.00
Comments:
Recipe: (Percent, Batch)
----- -------- Totals: 0.0 0.00
Comments:
Recipe: (Percent, Batch)
----- -------- Totals: 0.0 0.00
Comments:
Recipe: (Percent, Batch)
----- -------- Totals: 0.0 0.00
Comments:
Recipe: (Percent, Batch)
Barium carbonate 2.9 2.86 Talc 10.5 10.48 Whiting 17.1 17.14 Feldspar 47.6 47.62 Kaolin 7.6 7.62 Flint 14.3 14.28 ----- -------- Totals: 100.0 100.00
Also add:
Nickel oxide 1.0 0.95 Red iron oxide 7.6 7.62
Comments:
from Tony W.T. Yeh (3/95 CM) Kathleen Gordon Palo Alto,Ca email:emgordon@batnet.com voice:415-328-9164
Recipe: (Percent, Batch)
Feldspar 53.2 53.30 Dolomite 20.7 20.70 EPK 21.7 21.70 Whiting 4.4 4.40 ----- -------- Totals: 100.0 100.10
Also add:
Tin oxide 4.4 4.40 Zircopax 8.7 8.70 Yellow ochre 2.2 2.20
Comments:
This glaze must be applied over a clay body that spots such as rod's bod. Thicker applications give a lighter ochre color and thinner applications give the darker rusty brown shades. This glaze breaks darker over textures. Don't mix up more than you can use over a period of a month or two because the results seem to alter somewhat as the glaze ages a bit. The glaze must be fired in a medium to a heavy reduction to get the results you want. submitted by: Marilyn, in Utah e-mail: MarilynMFA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 42.9 42.88 Kona F-4 feldspar 10.3 10.28 Spodumene 14.5 14.47 Kentucky OM #4 14.3 14.29 EPK 14.3 14.29 Soda ash 3.8 3.78 ----- -------- Totals: 100.0 99.99
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Custer feldspar 47.8 47.80 Flint 21.1 21.10 EPK 6.7 6.70 Talc theoretical 6.7 6.70 Whiting 7.8 7.80 Bone ash 10.0 10.00 ----- -------- Totals: 100.0 100.10
Also add:
Red iron oxide 11.1 11.10 Bentonite 2.2 2.20
Comments:
Apply at least medium thickness. Must cool slowly to develop good rust color. Univ of FL shop glaze
Recipe: (Percent, Batch)
Soda spar 68.4 68.40 Silica 17.8 17.80 EPK 4.9 4.90 Talc 8.9 8.90 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 7.1 7.11 Cobalt carbonate 2.0 2.00
Comments:
From John Britt http://www.ceramicstoday.com/articles/oilspot.htm Article on oil-spot glazes. John's web site: http://www.johnbrittpottery.com/ Must be applied thickly. Fired in oxidation. Reduction between cone 9-11 will smooth out bubbles and help flux the iron. You can re-fire any pieces w/craters.
Recipe: (Percent, Batch)
Soda spar 54.6 54.62 Silica 29.4 29.41 Whiting 4.2 4.20 EPK 7.6 7.56 Dolomite 4.2 4.20 ----- -------- Totals: 100.0 99.99
Also add:
Red iron oxide 6.7 6.72 Cobalt carbonate 4.2 4.20
Comments:
From John Britt http://www.ceramicstoday.com/articles/oilspot.htm Article on oil-spot glazes. John's web site: http://www.johnbrittpottery.com/ Must be applied thickly. Fired in oxidation. Reduction between cone 9-11 will smooth out bubbles and help flux the iron. You can re-fire any pieces w/craters.
Recipe: (Percent, Batch)
Custer feldspar 25.5 25.51 Soda spar 35.7 35.71 EPK 15.3 15.30 Talc 5.1 5.10 Dolomite 5.1 5.10 Frit 3110 5.1 5.10 Silica 8.2 8.16 ----- -------- Totals: 100.0 99.98
Also add:
Red iron oxide 6.0 6.00
Comments:
From John Britt http://www.ceramicstoday.com/articles/oilspot.htm Article on oil-spot glazes. John's web site: http://www.johnbrittpottery.com/ Must be applied thickly. Fired in oxidation. Reduction between cone 9-11 will smooth out bubbles and help flux the iron. Good all-oxidation in an electric kiln. You can re-fire any pieces w/craters.
Recipe: (Percent, Batch)
Custer feldspar 23.6 23.60 Silica 29.2 29.20 Whiting 18.0 18.00 Ball clay 29.2 29.20 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 13.5 13.50
Comments:
From John Britt's book "High-Fire Glazes". Put Harding Oil Spot cover over for dappled effects in reduction. Most oil spots happen in oxidation.
Recipe: (Percent, Batch)
Custer feldspar 45.0 45.00 Silica 10.5 10.50 Whiting 10.5 10.50 Kaolin 17.6 17.60 Barium carbonate 11.8 11.80 Zinc oxide 4.6 4.60 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 15.5 15.50 yellow stain 10.0 10.00
Comments:
From John Britt's book "High-Fire Glazes". Put Harding Oil Spot cover over for Harding Oil Spot dappled effects in reduction. Most oil spots happen in oxidation.
Recipe: (Percent, Batch)
Silica 18.0 18.00 Talc theoretical 9.0 9.00 Soda feldspar - theoretical 68.0 68.00 Kaolin - theoretical 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Cedar Heights Redart Clay 80.0 80.00 Spodumene 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
The spodumene is Gwalia spod. fr. Australia. On porcelain this is a gloss mahogany-brown, or blacker where thicker, with some nice teadust flecks; breaking amber-straw color where it thins out on rims. On buff-white stoneware it's a slightly-reddish brown if single dipped & blacker if double-dipped, both colors with nice gradations & flecking. (not an oilspot really, at least in my firing, but a tenmoku with depth). submitted by: Marcia Kindlmann e-mail: marcia@design.eng.yale.edu
Recipe: (Percent, Batch)
Custer feldspar 80.2 80.18 Silica 5.7 5.66 Whiting 3.8 3.77 Talc 4.7 4.71 Bone ash 5.7 5.66 ----- -------- Totals: 100.0 99.98
Also add:
Red iron oxide 8.5 8.50
Comments:
From John Britt http://www.ceramicstoday.com/articles/oilspot.htm Article on oil-spot glazes. John's web site: http://www.johnbrittpottery.com/ Must be applied thickly. Fired in oxidation. Reduction between cone 9-11 will smooth out bubbles and help flux the iron. You can re-fire any pieces w/craters.
Recipe: (Percent, Batch)
Feldspar 37.0 37.00 Whiting 3.1 3.10 Barium carbonate 3.1 3.10 Kentucky OM #4 7.0 7.00 Talc theoretical 5.7 5.70 Flint 32.6 32.60 Bone ash 11.5 11.50 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 13.0 13.00
Comments:
Cone 9 oxidation or cone 10 reduction. From June Perry via ClayArt.
Recipe: (Percent, Batch)
Neph Sy 35.6 35.57 Dolomite 17.1 17.13 Zinc oxide 2.5 2.49 Whiting 3.1 3.12 Kaolin 5.9 5.92 Flint 35.8 35.77 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 5.0 5.01
Comments:
Doesn't add up properly, but the glaze worked. Here's a glaze you could try called Opal Blue, it's more medium blue with a lighter blue on top. It was one of my favorites when I had access to a gas kiln....sigh.... It is very pretty. from anne chambers
Recipe: (Percent, Batch)
Feldspar 58.0 58.00 Whiting 17.0 17.00 Flint 14.0 14.00 Ball clay 6.0 6.00 Zinc oxide 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
Date: Wed, 9 Aug 2000 From: Sheron RobertsSubject: Re: opalescence The following is a glaze I tried from the Tony Birk book, The Complete Potter's Companion, revised edition. Fired to cone 10, oxidation it produced an interesting opal like surface. On the inside of the bowls, where the glaze was thickest, the color was like mother of pearl, very pretty. I would suggest testing first though. "Clear" Feldspathic 2280F/ 1250C "This glaze is translucent rather than transparent, with the characteristic "milk and water" look of a feldspathic glaze. When it is thick, it has fine bubbles trapped in the glaze which give give sparkle, and it combines well with copper oxide (1%) to make gray green - a celedon without reduction." The above is straight from the book, I have not tried the copper oxide addition, yet. Sheron in NC Variations -- Gray green = + 1% copper oxide
Recipe: (Percent, Batch)
Nepheline syenite 47.3 47.30 Gerstley borate 14.2 14.20 Flint 27.5 27.50 Whiting 9.3 9.30 Zinc oxide 1.7 1.70 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 0.3 0.30 Tin oxide 1.0 1.00
Comments:
from Pete Pinnell, via Jim Connell on ClayArt.
Recipe: (Percent, Batch)
Custer feldspar 48.0 48.00 Cornwall Stone 17.0 17.00 Whiting 17.0 17.00 Tennessee #10 9.0 9.00 Zinc oxide 3.0 3.00 EPK 6.0 6.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 3.6 3.60 Rutile 2.4 2.40
Comments:
From Bill Van Gilder
Recipe: (Percent, Batch)
Custer feldspar 30.9 30.90 Silica 25.3 25.30 Whiting 22.4 22.40 Talc theoretical 7.8 7.80 EPK 12.6 12.60 Bone ash 1.1 1.10 ----- -------- Totals: 100.0 100.10
Also add:
Bentonite 1.1 1.10 Copper carbonate 5.5 5.50
Comments:
This is a glossy forest green at cone 10-11. below ^10 it is similar in color, but a satin matte. submitted by: Dave Eitel e-mail: daveitel@execpc.com Karen Newgard's version has 7% copper carb.
Recipe: (Percent, Batch)
China clay 6.8 6.83 Potash feldspar 50.7 50.73 Flint 14.6 14.63 Whiting 2.4 2.44 Bone ash 14.6 14.63 Talc 10.7 10.73 ----- -------- Totals: 100.0 99.99
Also add:
Red iron oxide 9.8 9.76
Comments:
If it is of interest, a common recipe for the so called Copper Red in oxidation used over here is as follows. The key RM is Bone Ash. fire to ^8 or ^9 molecular analysis K20 0.189 Al2O3 0.346 SiO2 2.820 Na2O 0.070 Fe2O3 0.178 P2O5 0.137 CaO 0.494 _____ _____ MgO 0.247 0.524 2.957 _____ 1.000 David HewittDavid Hewitt Pottery Caerleon, Newport, Gwent, UK.
Recipe: (Percent, Batch)
Custer feldspar 71.4 71.42 Silica 14.3 14.29 Whiting 14.3 14.29 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.1 3.06 Red iron oxide 2.0 2.04 Rutile 3.1 3.06
Comments:
submitted by: Michelle Lowe e-mail: mishlowe@indirectcom
Recipe: (Percent, Batch)
Cornwall Stone 85.0 85.00 Whiting 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
I'm looking for a white crackle glaze, satin or semi-mat surface. I just tested an old glaze recipe dug up from my files. Guess what.....no crackles, no crazing. Turned out a smooth satin white on my porcelain at a high ^6. Couldn't believe it...and to think what I go through some times to get rid of crazing on a functional glaze!!! Anyone have a white crackle glaze to share? submitted by: Anne Chambers e-mail: annecham@istar.ca
Recipe: (Percent, Batch)
Custer feldspar 47.0 47.00 Whiting 18.0 18.00 EPK 7.0 7.00 Silica 28.0 28.00 ----- -------- Totals: 100.0 100.00
Also add:
Titanium dioxide 8.0 8.00 Rutile 4.0 4.00 Red iron oxide 15.0 15.00
Comments:
Recipe: (Percent, Batch)
Frit 3289 21.6 21.00 Frit 3110 2.1 2.00 Spodumene 13.1 12.70 Barium carbonate 14.9 14.50 Zinc oxide 4.1 4.00 Grolleg 12.3 12.00 Silica 31.9 31.00 ----- -------- Totals: 100.0 97.20
Also add:
Zircopax Plus 1.4 1.40 Veegum T 1.4 1.40 Copper carbonate 0.0 0.02 CMC 0.4 0.40
Comments:
Calls for low-iron spodumene. 2 coats best - let dry between. Slow fire toward the end. CMC needed especially for erbium for good suspension. Copper carb used to preserve CMC. A bit runny at C9, but clear. C8 stable but not as transparent as C9. Barium has a positive effect on lanthide color solubility and gives more lusterous glazes. This glaze has been tested and fired as stated there is no Ba leaching. From David Pier. Variations -- Pink Lemonade + Erbium oxide 8.2 Lime Candy + praseodymium oxide 7 Grape Candy + neofymium oxide 5.5
Recipe: (Percent, Batch)
Nepheline syenite 40.0 40.00 Zinc oxide 20.0 20.00 Flint 30.0 30.00 EPK 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Chromium oxide 1.0 1.00
Comments:
Zinc pink. No tin needed. From Matthew Katz.
Recipe: (Percent, Batch)
Custer feldspar 34.0 34.00 Flint 12.0 12.00 EPK 4.0 4.00 Barium carbonate 36.0 36.00 Zinc oxide 14.0 14.00 ----- -------- Totals: 100.0 100.00
Also add:
Black nickel oxide 2.0 2.00
Comments:
From Margaret Bohls. Satin Matte. Magenta/hot pink crystals floating in a transparent brown. Looks blue thin. Perfect at a medium cone 9. Will run too much and list its crystals if fired hotter.
Recipe: (Percent, Batch)
Custer feldspar 34.0 34.00 Flint 12.0 12.00 EPK 4.0 4.00 Barium carbonate 36.0 36.00 Zinc oxide 14.0 14.00 ----- -------- Totals: 100.0 100.00
Also add:
Black nickel oxide 2.0 2.00
Comments:
Magenta-hot pink crystals floating in transparent brown. Looks blue where thin. Electric fire to cone 9 medium. Will run and lose crystals if fired hotter. From Margaret Bohls.
Recipe: (Percent, Batch)
Potash feldspar 35.0 35.00 Barium carbonate 40.0 40.00 Zinc oxide 15.0 15.00 China clay 5.0 5.00 Silica 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Nickel oxide 1.5 1.50
Comments:
from the Cooper Glaze Recipes book. I fired this at ^8. Where it's thin, the glaze is sort of 'old blue jeans' blue, with tan streaks. Where it's thickest, it's a deep maroony-mauve. The surface is a satin matt.
Recipe: (Percent, Batch)
Potash feldspar 43.0 43.01 Whiting 21.5 21.51 EPK 10.7 10.75 Flint 21.5 21.51 Zinc oxide 3.2 3.23 ----- -------- Totals: 100.0 100.01
Also add:
Rutile 7.5 7.53 Bentonite 2.1 2.15
Comments:
Apricot at ^9, the hotter it gets the more I like it. More pink and broken surface. Good in a wood kiln in reduction, too. I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
Nepheline syenite 35.7 35.70 Dolomite 15.3 15.30 Silica 30.6 30.60 Strontium carbonate 6.1 6.10 Whiting 8.2 8.20 EPK 4.1 4.10 ----- -------- Totals: 100.0 100.00
Also add:
Manganese dioxide 4.1 4.10 Cobalt oxide 0.5 0.50
Comments:
variegated brown and blue. glossy. not a lot of color concentration All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Custer spar 35.0 35.00 Gerstley borate 20.0 20.00 Whiting 15.0 15.00 EPK 10.0 10.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Dark plum thin, to black thick Glaze Type: Ca B IronSaturate. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer spar 35.0 35.00 Gerstley borate 20.0 20.00 Whiting 15.0 15.00 EPK 10.0 10.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Dark plum thin, to black thick Glaze Type: Ca B IronSaturate. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Grolleg 50.0 50.00 Custer feldspar 27.0 27.00 Flint 23.0 23.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Epsom salts 0.3 0.25
Comments:
From Peter Beasecker
Recipe: (Percent, Batch)
#6 Tile clay 30.0 30.00 EPK 15.0 15.00 Tennessee #1 5.0 5.00 Custer feldspar 27.0 27.00 Flint 23.0 23.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Epsom salts 0.3 0.25
Comments:
Peter Beasecker Porcelain Recipe.
Recipe: (Percent, Batch)
Dolomite 9.4 9.40 Gerstley borate 13.6 13.60 Whiting 2.7 2.70 Zinc oxide 1.8 1.80 Potash feldspar 43.6 43.60 Kaolin 1.8 1.80 Flint 27.1 27.10 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 0.1 0.05 Copper carbonate 0.5 0.50 Tin oxide 3.0 3.00
Comments:
For a beautiful purple glaze rafael molina-rodriguez (rafael molina-rodriguez)
Recipe: (Percent, Batch)
Custer feldspar 25.9 26.00 Flint 29.4 29.50 Whiting 15.0 15.10 EPK 1.8 1.80 Ball clay 5.6 5.60 Soda ash 7.1 7.10 Frit 3134 11.3 11.30 Barium carbonate 4.0 4.00 ----- -------- Totals: 100.0 100.40
Also add:
Tin oxide 1.1 1.10 Copper carbonate 0.5 0.50
Comments:
from Linda Arbuckle. Plummy.
Recipe: (Percent, Batch)
Barium carbonate 5.0 5.00 Dolomite 5.0 5.00 Gerstley borate 5.0 5.00 Whiting 8.0 8.00 Zinc oxide 2.5 2.50 Custer feldspar 49.7 49.80 Silica, 200 mesh 24.9 24.90 ----- -------- Totals: 100.0 100.20
Also add:
Tin oxide 1.0 1.00 Cobalt carbonate 0.2 0.20 Copper carbonate 2.0 2.00
Comments:
I've used the following Coleman Purple (Cone 10, reduction) with good results. It came from the September 1984 Ceramics Monthly. In addition to this glaze, there are other excellent glazes to experiment with. Try the Oxblood Red Glaze. submitted by: Randy Brodnax e-mail: RCB3431@dcccd.edu
Recipe: (Percent, Batch)
Potash feldspar 41.0 41.00 Colemanite 12.0 12.00 Dolomite 7.0 7.00 Talc theoretical 15.0 15.00 Kentucky OM #4 5.0 5.00 Silica 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt oxide 2.0 2.00 Bentonite 2.0 2.00 Tin oxide 2.0 2.00
Comments:
Buttery texture, very purple. UF shop glaze.
Recipe: (Percent, Batch)
Potash feldspar 41.0 41.00 Gerstley borate 12.0 12.00 Dolomite 7.0 7.00 Talc 15.0 15.00 Ball clay 5.0 5.00 Silica 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Cobalt oxide 2.0 2.00 Zircopax 3.0 3.00
Comments:
Here's a purple that doesn't need reduction. It comes out fine in cone 10 neutral in my gas kiln. Jennifer Boyer e-mail: Cobalt1994@aol.com
Recipe: (Percent, Batch)
Custer feldspar 49.9 50.00 Whiting 8.8 8.80 Silica 21.2 21.30 Kaolin 2.7 2.70 Gerstley borate 6.9 6.90 Dolomite 6.4 6.40 Zinc oxide 4.2 4.20 ----- -------- Totals: 100.0 100.30
Also add:
snno 3.2 3.20 Copper carbonate 1.1 1.10 Titanium dioxide 3.5 3.50
Comments:
From John Britt's book "High-Fire Glazes".
Recipe: (Percent, Batch)
Custer feldspar 50.9 50.89 Silica 25.4 25.45 Whiting 8.1 8.14 Dolomite 5.1 5.09 Gerstley borate 5.1 5.09 Barium carbonate 5.1 5.09 Zinc oxide 0.2 0.25 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 1.0 1.02 Copper carbonate 2.0 2.03 Cobalt carbonate 0.2 0.25
Comments:
This is an old art school recipe....man, its been years, so don't know if all ingrediants still available or whatever. It worked real well at ^8. We called it Purple Rain (dates it, don't it?) submitted by: Carol A. Spiros e-mail: Taraegon@aol.com
Recipe: (Percent, Batch)
Custer feldspar 30.9 30.91 Whiting 22.4 22.36 Silica 25.3 25.32 Talc 7.8 7.81 EPK 12.6 12.55 Bone ash 1.1 1.05 ----- -------- Totals: 100.0 100.00
Also add:
Copper Oxide 5.5 5.49
Comments:
FLUID, DO NOT DIP. THIN USE W/ CHUN/YANIGARA/HT/BLACK STAIN June: I have used this oribe as an accent glaze only. Thick it is green with a shine, but not a gloss to it. Thin, it is pink (reduced). I found that flung from a brush through a seive will produce light pink fine spatter. I use it with a chun that has tin oxide, but no other colorant and a semi matt white, from a potter by the name of Yanigara. If you like the way it behaves, Ill send the Yanigara rx as well. It is a favorite of mine. submitted by: Donald Goldsobel e-mail: pots@pacificnet.net
Recipe: (Percent, Batch)
Custer feldspar 47.0 47.00 Silica 13.0 13.00 Kaolin 13.0 13.00 Talc 10.5 10.50 Bone ash 14.0 14.00 Lithium carbonate 2.5 2.50 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.0 8.00
Comments:
From John Britt's book High Fire Glazes.
Recipe: (Percent, Batch)
Gillespie borate 8.0 8.00 Whiting 15.0 15.00 Nepheline syenite 13.0 13.00 EPK 9.0 9.00 Flint 30.0 30.00 G-200 feldspar 25.0 25.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 2.0 2.00 Copper carbonate 1.5 1.50
Comments:
Recipe: (Percent, Batch)
Custer feldspar 20.0 20.00 Kona F-4 feldspar 22.0 22.00 Dolomite 10.0 10.00 Grolleg 20.0 20.00 Flint 12.0 12.00 Talc 8.0 8.00 Whiting 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Cerdec Intensive Red stain 12.0 12.00
Comments:
From Peter Beasecker
Recipe: (Percent, Batch)
Ball clay 6.0 6.00 Custer feldspar 48.0 48.00 Flint 22.0 22.00 Talc 6.0 6.00 Whiting 6.0 6.00 Bone ash 12.0 12.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00 Bentonite 3.0 3.00
Comments:
Tomato red with orange gold flecks in reduction. Satin glossy yellow green in salt. Must have lighter reduction up and slow reoxidizing cool at top temperature, four to six hours.
Recipe: (Percent, Batch)
Feldspar 37.0 37.00 Whiting 3.1 3.10 Barium carbonate 3.1 3.10 Kentucky OM #4 7.0 7.00 Talc 5.7 5.70 Flint 32.6 32.60 Bone ash 11.5 11.50 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 13.0 13.00
Comments:
Cone 9 oxidation or cone 10 reduction. From June Perry via ClayArt.
Recipe: (Percent, Batch)
Custer spar 50.0 50.00 EPK 7.0 7.00 Whiting 20.0 20.00 Talc 4.0 4.00 Calcined kaolin 15.0 15.00 Bone ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Iron oxide 3.8 3.80
Comments:
This is the original Shaner Red. Colors from earthy yellow to yellow-green to a rich iron red. Deep red brown with yellow green overtones where thick. Yellow green with red fleck and dark brown where thin. Yellow green where thick. Something like Rowlands. 'Use 10% bone ash and it goes red as hell--like copper red, amazing' Glaze Type: Ca AlMatt. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Barium carbonate 2.0 2.00 Calcined Zinc Oxide 4.0 4.00 Lithium carbonate 2.0 2.00 Whiting 14.1 14.10 Custer feldspar 50.6 50.50 Ferro frit 3134 7.1 7.10 Silica, (325 mesh) 20.2 20.20 ----- -------- Totals: 100.0 99.90
Also add:
Copper carbonate 0.6 0.60 Tin oxide 1.0 1.00 Bentonite 1.0 1.00
Comments:
GREAT BLUE/RED /DARK BLUE! My experience with copper red is that what matters most is to begin reduction at cone 012 fairly heavy and then go into moderate reduction after cone 05 drops. Continue moderate to light reduction until cone 10 then a brief oxidation peroid of about 10 minutes. If you over reduce it will be liver brown and under reduced will be celadon. One solution to a problem (uneven, spotty reduction and under reduced)we had was to turn down the gas and air. To slow it down and reduce at the above schedule. We were firing in an Alpine updraft with blowers and just running the same schedule as the people who fired before us. They were firing at 4 pounds pressure (natural gas) with the blowers at 70. Something like that. But we reduced the gas and the air and the firing was 100% better. No more spotty reduction or unreduced pots. submitted by: John Britt e-mail: claydude@erinet.com
Recipe: (Percent, Batch)
Dolomite 2.0 2.00 Whiting 15.0 15.00 EPK 13.0 13.00 Custer feldspar 50.0 50.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 8.0 8.00 Red iron oxide 1.0 1.00
Comments:
From Karen Newgard. Chris Staley glaze.
Recipe: (Percent, Batch)
Potash feldspar 54.5 54.55 Whiting 13.6 13.64 Flint 22.7 22.73 Kaolin 4.5 4.55 Barium Carb 4.5 4.55 ----- -------- Totals: 100.0 100.02
Also add:
yellow ochre 4.5 4.55
Comments:
Here is a dark green shiny glaze that I used when I was doing porcelain ^10 reduction....It is beautiful especially on texture. Add more if you want a deeper green Add 10% red iron ox. for a temmoku I know it does not add up to 100...try it anyway. On stoneware it is a bit bland for my tastes but on white stoneware or porcelain its a beauty. It comes from Peter Lane's book Studio Porcelain As Always in Clay Peggy peggy heer
Recipe: (Percent, Batch)
Custer spar 42.9 42.86 Gerstley borate 12.4 12.38 Dolomite 6.7 6.67 Talc 14.3 14.29 EPK 4.8 4.76 Silica 19.0 19.05 ----- -------- Totals: 100.0 100.01
Comments:
Then add 1- 8% Iron Chromate, depending on how dark a grey you want. The grey will be slightly greenish. I used to mAke a semi-matt grey (as well as a lot of other colors) when I was doing ^10 reduction from Rhodes Magnesia Base.Hope this helps. Paul Lewing, Seattle http:digitalfire.com/magic/lewing.htm
Recipe: (Percent, Batch)
Custer feldspar 21.5 21.50 EPK 24.7 24.70 Silica 8.1 8.10 Talc 2.7 2.70 Whiting 43.0 43.00 ----- -------- Totals: 100.0 100.00
Comments:
Fake ash. Very runny rivulet glaze. Apply very thinly. Good for accenting texture, over slip of slip trailing. From Richard Burkett.
Recipe: (Percent, Batch)
Whiting 8.0 8.00 Flint 30.0 30.00 Nepheline syenite 45.0 45.00 Talc 7.0 7.00 Dolomite 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.0 3.00
Comments:
One of Val's 'Four Star' glazes. Very Smooth, lovely to touch, tactile quality is four star. Rec. by VC for Liz R. & LA Pottery 2/92 Variations -- Colorants 0.5% CoCarb. = lavender range; 2% Red iron oxide + 4% Rutile = beige range
Recipe: (Percent, Batch)
Flint 10.0 10.00 EPK 10.0 10.00 Ball clay 20.0 20.00 Whiting 30.0 30.00 Dolomite 7.5 7.50 Barium carbonate 12.5 12.50 Strontium carbonate 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
Runs in webs and rivulets. Nice fake ash base for colors. Runs too much if fired above cone 9. From Margaret Bohls Variations -- deep blue: +titanium diox. 4, + cobalt carb. 2%, + RIO 0.5% Pink: + Alpine Rose stain 7%, + zircopax 2%
Recipe: (Percent, Batch)
Ball clay 30.0 30.00 Whiting 30.0 30.00 Barium carbonate 15.0 15.00 Dolomite 15.0 15.00 Flint 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 4.0 4.00
Comments:
Do not apply right to the foot. It will run. This is a high calcium, fake ash glaze. Thin=rustybrown;med.=yellow green;thick=moss green pools Glaze Type: Ca FakeAsh . Opacity: Semi-opq. Firing type: Redtn. From Val Cushing.VC ed
Recipe: (Percent, Batch)
Flint 10.0 10.00 EPK 20.0 20.00 Ball clay 10.0 10.00 Whiting 30.0 30.00 Strontium carbonate 20.0 20.00 Barium carbonate 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
Opaque and satin at cone 9, not runny and rivulety, but nice varied surface. Blue develops nice titanium crystals on the surface. A nice complement to the Rivulet #1 + #2 glaze. From Margaret Bohls Variations -- deep blue: +titanium diox. 4, + cobalt carb. 2%, + RIO 0.5% Pink: + Alpine Rose stain 7%, + zircopax 2%
Recipe: (Percent, Batch)
Flint 10.0 10.00 EPK 20.0 20.00 Ball clay 10.0 10.00 Whiting 30.0 30.00 Strontium carbonate 20.0 20.00 Barium carbonate 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
Not runny rivulet at cone 9, but a nice varied surface. A nice complement to the Rivulet 1 + 2 glaze. From Margaret Bohls. Variations -- deep blue: titanium diox 4 + cobalt carb. 2 + RIO 0.5% Blue develops Ti crystals on the surface pink: Alpine rose Mason stain 7 + zircopax 2%
Recipe: (Percent, Batch)
Flint 10.0 10.00 EPK 10.0 10.00 Ball clay 20.0 20.00 Whiting 30.0 30.00 Dolomite 7.5 7.50 Barium carbonate 12.5 12.50 Strontium carbonate 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
Runs in webs & rivulets. Nice fake-ash base for colors. Runs too much if fired hotter than cone 9. From Margaret Bohls. Variations -- deep blue: titanium diox 4 + cobalt carb. 2 + RIO 0.5% pink: Alpine rose Mason stain 7 + zircopax 2% + RIO 0.5%
Recipe: (Percent, Batch)
Whiting 28.0 28.00 Custer feldspar 48.4 48.37 EPK 10.7 10.74 Silica 12.9 12.89 ----- -------- Totals: 100.0 100.00
Also add:
Titanium dioxide 8.6 8.60 Bentonite 2.2 2.15
Comments:
From Robbie Lobell. Used on the outside of flameware body. Looks like it's applied very thinly. Article in Ceramics Mo. May 2011. Variations -- Gold: titanium dioxide 5-8 %
Recipe: (Percent, Batch)
Nepheline syenite 25.0 25.00 Ball clay 20.0 20.00 EPK 20.0 20.00 Silica 30.0 30.00 Borax 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
cone 8-10 for various shades of Blue Green add: 1-4% Chrome Ox 1-3% Cobalt Carb Muted blue 5 Cobalt Carb 10 Red Iron OX 15 Rutile Blue 2-4% Cobalt Carb Brown 5 - 40% Red Iron Ox submitted by: Ruth Ballou e-mail: rballou@access.digex.net
Recipe: (Percent, Batch)
Potash feldspar 32.2 32.20 Whiting 20.5 20.50 Flint 19.5 19.50 EPK 16.6 16.60 Talc 11.2 11.20 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 8.3 8.30
Comments:
Below is a glaze I have been using for years, I got it out of CM. Likes a thick dip and I also double dip rims. Does not like a long soak at cone 10. Looks best at a good cone 9 (slightly satin with shiny spots) or 10 ( glossy blue with mottling and crystals) Good Luck! Barbara Murphy, Waterloo, Ontario dave murphy
Recipe: (Percent, Batch)
G-200 feldspar 32.2 32.20 Whiting 20.5 20.50 Flint 19.5 19.50 EPK 16.6 16.60 Talc 11.2 11.20 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 8.3 8.30
Comments:
from Alfred U. days Tan where thin Beige where med. and mottled light blue where thick. Satin matt to gloss. Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Dolomite 15.8 15.80 G-200 feldspar 30.0 30.00 Whiting 11.1 11.10 EPK 16.8 16.80 Flint 26.3 26.30 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 8.0 8.00
Comments:
from Kevin Tan satin almost gold where thin. pasty blue gloss where thick. Beautiful with CB slip Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Custer spar 28.9 28.90 Whiting 20.6 20.60 EPK 18.9 18.90 Flint 31.6 31.60 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 7.0 7.00
Comments:
I can't put my hands on that copy of CM right now, but I did copy into my glaze notebook the two rutile glazes in that article. Rutile Blue II is a glaze I am still using. Jan Wax jan wax
Recipe: (Percent, Batch)
Dolomite 15.8 15.80 Custer spar 30.0 30.00 Whiting 11.1 11.10 EPK 16.8 16.80 Flint 26.3 26.30 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 8.0 8.00
Comments:
I can't put my hands on that copy of CM right now, but I did copy into my glaze notebook the two rutile glazes in that article. Rutile Blue II is a glaze I am still using. Jan Wax jan wax
Recipe: (Percent, Batch)
Potash feldspar 42.0 42.00 Flint 27.0 27.00 Ball clay 13.0 13.00 Whiting 18.0 18.00 ----- -------- Totals: 100.0 100.00
Also add:
Black iron oxide 4.0 4.00 Titanium dioxide 4.0 4.00
Comments:
If you are looking for a reliable rutile blue glaze, I have one that uses titanium (pure form of rutile, of course) and is very nice. It comes out as a classic blue (thick), rust (thinner) glaze and I have found it to be very reliable. Gail Dapogny in Ann Arbor james dapogny
Recipe: (Percent, Batch)
Rutile 50.0 50.00 Gerstley borate 50.0 50.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Kaolin 22.0 22.00 Potash feldspar 36.0 36.00 Dolomite 18.0 18.00 Whiting 4.0 4.00 Colemanite 4.0 4.00 Silica 16.0 16.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 5.0 5.00
Comments:
reduction or oxidation This is a great glaze on stoneware it is a shiny black which breaks to gold on texture or rims. On red body it is especially beautiful. On porcelin it becomes runny if too thick but is a beautiful soft grey breaking to black on texture or on rims etc. This glaze has never failed to surprise me in every firing of it. submitted by: PEGGY HEER email: p4337@freenet.edmonton.ab.ca
Recipe: (Percent, Batch)
Talc 9.8 9.84 Whiting 18.0 17.97 Custer feldspar 28.3 28.28 Alberta slip 12.5 12.50 Kaolin 14.4 14.38 Silica 17.0 17.03 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 7.3 7.34
Comments:
We've been having a terrible time with one of our production glazes. We've used it for several years without a problem, but after moving a year ago we started getting major blisters. Some firings are ok, then we'll have a terrible load even tho we fire the same schedule each time. We thot it might be the new water (it's softer, so we wondered if it might have more sodium), but tried the 'old' water, got the same blisters, altho not as bad (for a load or 2). We typically fire (propane) to ^10 tip touching, in about 11-12 hours) start reduction at ^012 at the coolest spot in the kiln. We take an hour from ^9 to ^10, then usually leave the damper open for an hour to quick cool before we close it. We tried closing it immediately for a slow cool, hoping to smooth out the glaze, but still had blisters and had lost all our great blues. The temp is within 1/2 cone throughout the kiln, and reduction seems fairly even. The other thing is that it isn't every pot in that glaze. On one shelf, the pots on one side might be blistered and the other side fine, and one shelf up or down the opposite side is affected. It seems worse when the glaze is thin. Sometimes a re-fire helps smooth them out. Our 2 claybodies are Plainsman H443 (brown) and H551 (white). Could it be the clay? We have some blisters in other glazes too, altho not as bad. The only common ingredient in custer spar. I hope I've given you enough info to help me. It's been a year of seconds, losing about 20%. submitted by: Barb & Ray Sapergia e-mail: sapergia@island.net
Recipe: (Percent, Batch)
Feldspar theoretical 19.2 19.00 Dolomite 6.1 6.00 Whiting 12.1 12.00 Kaolin - theoretical 14.1 14.00 Silica 48.5 48.00 ----- -------- Totals: 100.0 99.00
Comments:
Recipe: (Percent, Batch)
Feldspar 56.1 56.10 Nepheline syenite 15.4 15.40 Whiting 13.3 13.30 Kaolin 8.6 8.60 Barium carbonate 6.6 6.60 ----- -------- Totals: 100.0 100.00
Comments:
While going through my Ball Syllabus, I came across the following and I wondered if anyone had tried it? I was thinking of recalculating for strontium at: feldspar 57.04 neph sy 15.65 whiting 13.52 kaolin 8.74 strontium carb 5.03 I assume he used this in oxidation. I know he fired over clays that came from Quyle Kilns in Murphys CA so the stuff was an iron buff stoneware. Emily in Astoria emily henderson
Recipe: (Percent, Batch)
Soda feldspar 47.0 47.00 Flint 15.0 15.00 Talc 14.0 14.00 Gerstley borate 12.0 12.00 Dolomite 8.0 8.00 Kaolin 4.0 4.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Albany Slip 50.0 50.00 Talc 40.0 40.00 Whiting 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
Rob Wadey (robert wadey ) 9734B - 100 Ave Grande Prairie, Alberta t8V 0T6 Phone: (403) 538-3731 Fax: (403) 538.3732
Recipe: (Percent, Batch)
Feldspar 47.4 45.00 Dolomite 21.1 20.00 Gerstley borate 10.5 10.00 Kaolin 21.1 20.00 ----- -------- Totals: 100.0 95.00
Also add:
Tin oxide 8.4 8.00
Comments:
Stable glaze good for brushwork on top.
Recipe: (Percent, Batch)
Cornwall Stone 20.8 21.00 EPK 27.7 28.00 Talc 9.9 10.00 Whiting 16.8 17.00 Strontium carbonate 11.9 12.00 Silica 12.9 13.00 ----- -------- Totals: 100.0 101.00
Comments:
Recipe: (Percent, Batch)
Cornwall Stone 50.0 50.00 EPK 25.0 25.00 Whiting 25.0 25.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.0 8.00
Comments:
Satin matt. Very similar to Shaner red. Very metallic brown going to deep red over white slip. Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Whiting 8.0 8.00 Flint 30.0 30.00 Nepheline syenite 45.0 45.00 Talc theoretical 7.0 7.00 Dolomite 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.0 3.00
Comments:
One of Val's 'Four Star' glazes. Very Smooth, lovely to touch, tactile quality is four star. Rec. by VC for Liz R. & LA Pottery 2/92 Ayumi Horie says "beefy white that in soda breaks into snowy crystals. Variations -- Colorants 0.5% CoCarb. = lavender range; 2% Red iron oxide + 4% Rutile = beige range 2% RIO olive green blue/white crystals 0.5% cobalt carb 12% Cerdec red inclusion stain - warm red
Recipe: (Percent, Batch)
Spodumene 27.4 27.40 Wollastonite 18.8 18.80 Strontium carbonate 16.4 16.40 Zinc oxide 6.0 6.00 Kaolin 19.0 19.00 Flint 12.4 12.40 ----- -------- Totals: 100.0 100.00
Also add:
Chrome oxide 0.5 0.50 Red iron oxide 2.0 2.00
Comments:
From Kathryn Finnerty
Recipe: (Percent, Batch)
Feldspar 49.0 49.00 Whiting 18.0 18.00 EPK 13.0 13.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 12.0 12.00 Bentonite 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Ball clay 6.0 6.00 Custer feldspar 48.0 48.00 Flint 22.0 22.00 Talc 6.0 6.00 Whiting 6.0 6.00 Bone ash 12.0 12.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00 Bentonite 3.0 3.00
Comments:
Tomatoe red with orange gold flecks in reduction. Satin glossy yellow green in salt. Must have lighter reduction up and slow reoxidizing cool at top temperature, four to six hours. Glaze Type: Ca Mg K IronRed SaltFire. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer feldspar 51.9 51.90 Flint 22.9 22.90 EPK 7.2 7.20 Talc 7.2 7.20 Bone ash 10.8 10.80 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 12.0 12.00
Comments:
UF Shop glaze. Nice bright saturated iron. Needs to be adquately thick. Slow cooling favors growth of iron crystals and bright rust color. Quick cooling will yield dull brown.
Recipe: (Percent, Batch)
Custer feldspar 71.4 71.42 Silica 14.3 14.29 Whiting 14.3 14.29 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.1 3.06 Red iron oxide 2.0 2.04 Rutile 3.1 3.06
Comments:
submitted by: Michelle Lowe e-mail: mishlowe@indirectcom
Recipe: (Percent, Batch)
China clay 6.8 6.83 Potash feldspar 50.7 50.73 Flint, or Quartz 14.6 14.63 Whiting 2.4 2.44 Bone ash 14.6 14.63 Talc 10.7 10.73 ----- -------- Totals: 100.0 99.99
Also add:
Red iron oxide 9.8 9.76
Comments:
If it is of interest, a common recipe for the so called Iron Red in oxidation used over here is as follows. The key RM is Bone Ash. fire to ^8 or ^9 molecular analysis K20 0.189 Al2O3 0.346 SiO2 2.820 Na2O 0.070 Fe2O3 0.178 P2O5 0.137 CaO 0.494 _____ _____ MgO 0.247 0.524 2.957 _____ 1.000 David Hewitt David Hewitt Pottery Caerleon, Newport, Gwent, UK.
Recipe: (Percent, Batch)
Custer feldspar 20.0 20.00 Kona F-4 14.0 14.00 Whiting 17.0 17.00 Barium carbonate 3.0 3.00 EPK 15.0 15.00 Flint 31.0 31.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Black breaks to red plum. High alumina keeps this from being Temmoku. It is more subtle and satin.
Recipe: (Percent, Batch)
Custer feldspar 20.0 20.00 Kona F-4 spar 14.0 14.00 Whiting 17.0 17.00 Barium carbonate 3.0 3.00 EPK 15.0 15.00 Flint 31.0 31.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Black breaks to red plum. High alumina keeps this from being Temmoku. It is more subtle and satin. Glaze Type: Ca IronSaturate. Opacity: Opaque. Firing type: Reduction From Val Cushing.VC ed
Recipe: (Percent, Batch)
Zinc oxide (calcined) 6.5 6.50 Whiting 13.0 13.00 Ferro frit 3134 9.0 9.00 G-200 feldspar 39.0 39.00 Ball clay 7.5 7.50 Silica 25.0 25.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 0.4 0.40 Tin oxide 9.0 9.00
Comments:
White RETRY My experience with copper red is that what matters most is to begin reduction at cone 012 fairly heavy and then go into moderate reduction after cone 05 drops. Continue moderate to light reduction until cone 10 then a brief oxidation peroid of about 10 minutes. If you over reduce it will be liver brown and under reduced will be celadon. One solution to a problem (uneven, spotty reduction and under reduced)we had was to turn down the gas and air. To slow it down and reduce at the above schedule. We were firing in an Alpine updraft with blowers and just running the same schedule as the people who fired before us. (It was a community center). They were firing at 4 pounds pressure (natural gas) with the blowers at 70. Something like that. But we reduced the gas and the air and the firing was 100% better. No more spotty reduction or unreduced pots. (I kind of miss those unwanted interesting results though.) submitted by: John Britt e-mail: claydude@erinet.com
Recipe: (Percent, Batch)
Cornwall Stone 84.2 84.21 Whiting 15.8 15.79 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 5.3 5.26
Comments:
originally called for Cornish stone. A very hard glaze on Porcelain so should do well on stoneware Strong oxide response..especially cobalt. PEGGY HEER email: p4337@freenet.edmonton.ab.ca 9702 76 AVENUE phone: 433-0290 EDMONTON, AB. CANADA T6E 1K3
Recipe: (Percent, Batch)
Custer spar 42.8 42.90 Gerstley borate 12.4 12.40 Dolomite 6.7 6.70 Talc 14.3 14.30 EPK 4.8 4.80 Silica 19.1 19.10 ----- -------- Totals: 100.0 100.20
Comments:
Paul Lewing, Seattle http:digitalfire.com/magic/lewing.htm Variations -- add 1- 8% Iron Chromate, depending on how dark a grey you want. The grey will be slightly greenish.
Recipe: (Percent, Batch)
Kona F-4 feldspar 40.0 40.00 Whiting 10.0 10.00 Dolomite 15.0 15.00 Magnesium carbonate 10.0 10.00 EPK 15.0 15.00 Flint 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
From Aysha Peltz
Recipe: (Percent, Batch)
Kona F-4 feldspar 34.2 34.20 Dolomite 28.2 28.20 Magnesium carbonate 0.8 0.80 Silica 23.1 23.10 Bone ash 0.1 0.07 Alumina hydrate 13.6 13.60 ----- -------- Totals: 100.0 99.97
Comments:
From Aysha Peltz
Recipe: (Percent, Batch)
Custer feldspar 30.9 30.91 Silica 25.3 25.32 Whiting 22.4 22.36 Talc 7.8 7.81 EPK 12.6 12.55 Bone ash 1.1 1.05 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.1 1.05 Copper carbonate 5.5 5.49
Comments:
This is a glossy forest green at cone 10-11. below ^10 it is similar in color, but a satin matte. submitted by: Dave Eitel e-mail: daveitel@execpc.com
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Soda ash 19.0 19.00 OM-4 Ball Clay 15.0 15.00 Soda feldspar 11.0 11.00 EPK 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 60.7 60.61 Kentucky OM #4 20.0 20.00 Spodumene 15.2 15.16 Soda ash 4.0 4.02 ----- -------- Totals: 100.0 99.79
Also add:
Bentonite 2.3 2.33
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 44.7 44.73 Soda ash 16.2 16.20 OM-4 Ball Clay 12.9 12.92 Soda feldspar 9.2 9.24 EPK 16.9 16.90 ----- -------- Totals: 100.0 99.99
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 42.9 42.88 Kona F-4 feldspar 10.3 10.28 Spodumene 14.5 14.47 Kentucky OM #4 14.3 14.29 EPK 14.3 14.29 Soda ash 3.8 3.78 ----- -------- Totals: 100.0 99.99
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 42.9 42.90 Kona F-4 feldspar 10.3 10.30 Spodumene 14.5 14.50 Kentucky OM #4 14.3 14.30 EPK 14.3 14.30 Soda ash 3.8 3.80 ----- -------- Totals: 100.0 100.10
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 42.9 42.88 Kona F-4 feldspar 10.3 10.28 Spodumene 14.5 14.47 Kentucky OM #4 14.3 14.29 EPK 14.3 14.29 Soda ash 3.8 3.78 ----- -------- Totals: 100.0 99.99
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Custer feldspar 42.4 42.42 Spodumene 36.4 36.36 EPK 12.1 12.12 Soda ash 9.1 9.09 ----- -------- Totals: 100.0 99.99
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Soda ash 4.6 4.55 Nepheline syenite 68.2 68.18 Spodumene 4.5 4.54 EPK 4.6 4.55 Kentucky ball clay 18.2 18.18 ----- -------- Totals: 100.0 100.00
Comments:
This is a shino that I have used for years, it works on stoneware or porcelain, it will sometimes crawl on stoneware, I have never seen it crawl on porcelain. It must be very thin on porcelain to turn orange, or try putting a wash of an iron rich glaze (I use temmoku) before applying the shino. Shinos need a good reduction to get the orange color, as you probably know. Good luck. David Cuzick Claycuzian@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 68.2 68.18 Spodumene 4.5 4.54 OM-4 Ball Clay 18.2 18.18 EPK 4.6 4.55 Soda ash 4.6 4.55 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Soda ash 4.6 4.55 Nepheline syenite 68.2 68.18 Spodumene 4.5 4.54 EPK 4.6 4.55 Kentucky ball clay 18.2 18.18 ----- -------- Totals: 100.0 100.00
Comments:
This is a shino that I have used for years, it works on stoneware or porcelain, it will sometimes crawl on stoneware, I have never seen it crawl on porcelain. It must be very thin on porcelain to turn orange, or try putting a wash of an iron rich glaze (I use temmoku) before applying the shino. Shinos need a good reduction to get the orange color, as you probably know. Good luck. David Cuzick Claycuzian@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 38.7 38.70 Soda ash 16.0 16.00 OM-4 Ball Clay 13.2 13.20 EPK 17.0 17.00 Kona F-4 feldspar 9.4 9.40 Redart clay 5.7 5.70 ----- -------- Totals: 100.0 100.00
Comments:
From Crystal Ribich
Recipe: (Percent, Batch)
Soda ash 10.0 10.00 Minspar 200 23.0 23.00 Nepheline syenite 23.0 23.00 Spodumene 38.0 38.00 EPK 6.0 6.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
From Matt Hyleck in CM Dec. 2011
Recipe: (Percent, Batch)
Nepheline syenite 40.0 40.00 Soda feldspar 13.0 13.00 Spodumene 9.0 9.00 Ball clay 15.0 15.00 Kaolin 8.0 8.00 Cedar Heights Redart 3.0 3.00 Soda ash 12.0 12.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 40.0 40.00 Soda feldspar 13.0 13.00 Spodumene 9.0 9.00 Ball clay 15.0 15.00 Kaolin 8.0 8.00 Cedar Heights Redart 3.0 3.00 Soda ash 12.0 12.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 43.1 42.90 Kona F-4 feldspar 9.3 9.30 Ball clay 14.4 14.30 EPK 9.3 9.30 Soda ash 18.2 18.10 Redart 5.7 5.70 ----- -------- Totals: 100.0 99.60
Comments:
From Susan Harris. Luscious red shino.
Recipe: (Percent, Batch)
Nepheline syenite 36.0 36.00 EPK 27.0 27.00 Spodumene 13.0 13.00 OM-4 Ball Clay 12.0 12.00 Kona F-4 Feldspar 9.0 9.00 Soda ash 3.0 3.00 ----- -------- Totals: 100.0 100.00
Comments:
NOTE: originally specified anhydrous Soda Ash Lowell Baker: Here are three more shino glazes for you to explore. One is probably well known, Shaner's shino, it is the one we use at Mohawk C's 'ceramics lab' stoney creek. As quoted this is a high alkali glaze (sodium and lithium) and unusually high alumina 1.6 moles (29.5% by weight). This glaze doesn't fit the pattern of C10R glazes but works if one applies it carefully. (The iron comes from the raw materials and totals 0.01 moles, 0.35%) A thin singlecoat yeilds variegated organge especially on a embossed surface. If a second coat is applied, one gets a greyed white, and if the glaze is even thicker it will crawl. From: Tom Buck
Recipe: (Percent, Batch)
Nepheline syenite 75.0 75.00 Soda ash 8.0 8.00 Lithium carbonate 7.0 7.00 EPK 5.0 5.00 Flint 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
Originally specified lithium oxide -almost certainly this should have been lithium carbonate. Works well in soda and salt kilns, too. You might try sifting some ash directly onto the work after glazing, to implement the fly ash in the kiln. I've done that with good results, in heavy reduction. Dannon Rhudy
Recipe: (Percent, Batch)
Nepheline syenite 40.0 40.00 Soda feldspar 13.0 13.00 Spodumene 9.0 9.00 Ball clay 15.0 15.00 Kaolin 8.0 8.00 Redart clay 3.0 3.00 Soda ash 12.0 12.00 ----- -------- Totals: 100.0 100.00
Comments:
As per your request for a shino, here is one I developed and am particularly fond of. I do not know how low it could be fired. I fire it to ^10-11. One of the most important aspects of shinos is HOW they are fired. To get good fire color, I reduce from ^010 on until the end, then I back the burners off to low and oxidize for 1-2 hours before shutting down. For testing, apply at various thicknesses from very thin to very thick for a variety of color/texture types. submitted by: Bill Buckner e-mail: couwbb@gsusgi2.gsu.edu
Recipe: (Percent, Batch)
Nepheline syenite 88.0 88.00 Kaolin 9.0 9.00 Ball clay 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Salt 5.0 5.00
Comments:
glossy, apply thin! submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 39.5 39.47 Kaolin 30.7 30.70 Spodumene 13.4 13.38 Kentucky OM #4 13.2 13.16 Soda ash 3.3 3.29 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Soda feldspar 14.6 14.58 Spodumene 12.5 12.50 EPK 2.9 2.91 Soda ash 3.3 3.33 Nepheline syenite 50.0 50.02 Ball clay 16.7 16.66 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.0 3.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Kona F-4 feldspar 14.6 14.60 Spodumene 12.5 12.50 Kentucky OM #4 16.6 16.60 Nepheline syenite 50.1 50.00 Soda ash 3.3 3.30 EPK 2.9 2.90 ----- -------- Totals: 100.0 99.90
Comments:
Used at Curaumilla for dry-glaze once-fire wood.
Recipe: (Percent, Batch)
Nepheline syenite 45.1 41.56 Spodumene 30.0 27.67 EPK 24.9 23.00 ----- -------- Totals: 100.0 92.23
Comments:
From Tara Wilson. Used in wood-fire
Recipe: (Percent, Batch)
Soda ash 8.1 8.08 Spodumene 30.3 30.30 Nepheline syenite 39.4 39.40 EPK 5.1 5.05 OM-4 Ball Clay 17.2 17.17 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Kona F-4 Feldspar 10.8 10.80 Spodumene 15.2 15.20 EPK 10.0 10.00 Soda ash 4.0 4.00 Red Art Clay 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Spodumene 15.0 15.00 OM-4 ball clay 15.0 15.00 Kona F-4 feldspar 11.0 11.00 EPK kaolin 10.0 10.00 Soda ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Nepheline syenite 44.8 44.80 Spodumene 15.0 15.00 Kona F-4 feldspar 5.2 5.20 Kaolin - theoretical 27.0 27.00 Soda ash 5.1 5.10 Flint 3.0 3.00 ----- -------- Totals: 100.0 100.10
Comments:
NOTE: originally specified 'Soda Ash light' Additions as below (same as for Wirt shino). COE 8.1. Alumina 1.2 moles (26.4%) add colorants (iron and/or rutile) and Bentonite 1% Estimated COE 8.4 (high). This recipe is proposed for testing and any results should be reported to CLAYART amd San diego. From: Tom Buck Variations -- recalc to match alumnia content of using calcined kaolin
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Kona F-4 feldspar 11.0 11.00 Spodumene 15.0 15.00 Ball clay 15.0 15.00 Calcined kaolin 10.0 10.00 Soda ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.0 1.00
Comments:
Iron and Rutile are the only colorants that do much for shino type glazes. Carbon trap glaze. Orange according to the amt. of redtn. Rust where thin, greys where carbon trapped. For a crawling shino, sub EPK for calcined kaolin and apply thickly. Glaze Type: Na Li Al Shino. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Soda feldspar 10.8 10.80 Spodumene 15.2 15.20 Ball clay 15.0 15.00 EPK 10.0 10.00 Soda ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.0 3.00
Comments:
*Also posted as Oestreich's Shino using Kona F4 & no Bentonite source for original recipe: Dennis Smith, Southwest Craft Center submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Soda feldspar 10.8 10.80 Spodumene 15.2 15.20 Red Art Clay 15.0 15.00 EPK 10.0 10.00 Soda ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Comments:
Same as Gustin's Shino #1 but uses Red Art instead of Ball Clay and no bentonite submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Soda feldspar 10.8 10.80 Spodumene 15.2 15.20 Red Art Clay 15.0 15.00 EPK 10.0 10.00 Soda ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Comments:
Same as Gustin's Shino #1 but uses Red Art instead of Ball Clay and no bentonite submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Kona F-4 feldspar 11.0 11.00 Spodumene 15.0 15.00 Ball clay 15.0 15.00 Calcined kaolin 10.0 10.00 Soda ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.0 1.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 50.0 50.00 Spodumene 15.0 15.00 Soda feldspar 15.0 15.00 kaolin 15.0 15.00 Silica 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Kona F-4 Feldspar 34.0 33.98 Spodumene 29.1 29.13 Nepheline syenite 14.6 14.56 kaolin 9.7 9.71 Soda ash 7.8 7.77 OM-4 Ball Clay 4.9 4.85 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Kona F-4 Feldspar 10.8 10.80 Spodumene 15.2 15.20 Ball clay 15.0 15.00 EPK 10.0 10.00 Soda ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Comments:
The best Shino recipe I've used is Jeff Oestreich's. It produces a beautiful orange peal surface, and not a lot of pinholes. This is a cone 10 glaze. submitted by: Todd Osborne e-mail: OSBORN10@MARSHALL.EDU
Recipe: (Percent, Batch)
Nepheline syenite 40.0 40.00 Spodumene 30.0 30.00 OM-4 Ball Clay 17.0 17.00 Soda ash 8.0 8.00 EPK 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
The plain shino I use is known to me as Jeff Oestreich's Shino, although many people tell me it is actually a Chris Gustin glaze, but of course we should know that it or something akin to it is from someone eons old.... Good luck with these. They are generally pretty decent glazes. submitted by: Jeremy Nudell Kalin e-mail: kali0015@gold.tc.umn.edu
Recipe: (Percent, Batch)
F-4 Feldspar 10.8 10.80 Spodumene 15.2 15.20 Kaolin 10.0 10.00 Soda ash 4.0 4.00 Nepheline syenite 45.0 45.00 Redart Clay 15.0 15.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 0.3 0.25 Chrome oxide 0.3 0.25
Comments:
I have also used a shino with some cobalt and chrome as a green shino- it only goes a fatty green in salt, in redux it's a pale anemic green. Good luck with these. They are generally pretty decent glazes. I suppose those Celadon cops might try to insist that the green is no longer a shino, but a green is a green is a green. The base is still a shino, okay... submitted by: Jeremy Nudell Kalin e-mail: kali0015@gold.tc.umn.edu
Recipe: (Percent, Batch)
Nepheline syenite 44.6 44.60 Kona F-4 feldspar 10.6 10.63 Amblygonite 15.1 15.06 Ball clay 14.9 14.87 EPK 9.9 9.91 Soda ash 2.9 2.95 KY White Glaze Clay 2.0 1.98 ----- -------- Totals: 100.0 100.00
Comments:
Clay Times May/June 2002
Recipe: (Percent, Batch)
Soda ash 4.0 4.00 Kona F-4 Feldspar 18.4 18.40 Nepheline syenite 45.0 45.00 Spodumene 15.2 15.20 EPK 2.4 2.40 OM-4 Ball Clay 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Potash feldspar 15.2 15.16 Spodumene 16.0 16.00 Soda ash 4.2 4.21 Nepheline syenite 47.4 47.37 Ball clay 17.3 17.26 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 39.3 39.34 Spodumene 30.6 30.63 OM-4 Ball Clay 17.2 17.22 Soda ash 8.0 8.01 EPK 4.8 4.80 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 28.8 28.57 EPK 27.0 26.79 Lizella Red 44.3 44.00 ----- -------- Totals: 100.0 99.36
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Kona F-4 Feldspar 14.6 14.60 Spodumene 12.5 12.50 EPK 2.9 2.90 Nepheline syenite 50.0 50.00 OM-4 Ball Clay 16.7 16.70 Soda ash 3.3 3.30 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 53.7 53.66 Potash feldspar 41.5 41.46 OM-4 Ball Clay 2.4 2.44 Red clay 2.4 2.44 ----- -------- Totals: 100.0 100.00
Comments:
*red mule, red horse, etc. If use Redart could probably go ^10 submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 20.0 20.00 Potash feldspar 40.0 40.00 Kentucky OM #4 40.0 40.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Potash feldspar 75.0 75.00 OM-4 Ball Clay 25.0 25.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 80.0 80.00 OM-4 Ball Clay 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Kona F-4 feldspar 10.8 10.80 Spodumene 15.2 15.20 EPK 10.0 10.00 Soda ash 4.0 4.00 Redart clay 15.0 15.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 0.3 0.25 Chrome oxide 0.3 0.25
Comments:
I can now type Nepheline Syenite, Spodumene, and Feldspar without any problem at all, however, I cannot type anything else! submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Kona F-4 feldspar 18.6 18.60 Spodumene 15.4 15.40 Nepheline syenite 45.4 45.50 Soda ash 4.0 4.00 Ball clay 16.7 16.70 ----- -------- Totals: 100.0 100.20
Comments:
Recipe: (Percent, Batch)
Nepheline syenite 75.4 75.50 Lithium carbonate 2.8 2.80 Whiting 0.7 0.70 Kaolin - theoretical 12.1 12.10 Silica 9.0 9.00 ----- -------- Totals: 100.0 100.10
Comments:
Recipe: (Percent, Batch)
Nepheline syenite 57.9 57.90 Soda ash 3.9 3.90 Lithium carbonate 2.7 2.70 Whiting 0.6 0.60 Kaolin - theoretical 22.3 22.30 Silica 12.6 12.60 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Nepheline syenite 49.5 49.48 Spodumene 25.8 25.77 EPK 5.2 5.15 OM-4 Ball Clay 8.3 8.25 Soda feldspar 7.2 7.22 Soda ash 4.1 4.12 ----- -------- Totals: 100.0 99.99
Comments:
For a pink salmon add 5% mason stain 6020 For yellow add 5% zirconium yellow stain (nice on grolleg) submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Soda ash 19.0 19.00 Kentucky OM #4 15.0 15.00 Soda feldspar 11.0 11.00 EPK 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Soda ash 16.0 16.00 Soda feldspar 9.0 9.00 EPK 17.0 17.00 Kentucky OM #4 13.0 13.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Soda ash 17.3 17.30 Kentucky OM #4 13.8 13.80 EPK 18.0 18.00 Kona F-4 feldspar 9.9 9.90 Nepheline syenite 41.0 41.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Nepheline syenite 40.9 40.90 Soda ash 17.3 17.30 Kentucky OM #4 13.8 13.80 Kona F-4 feldspar 9.8 9.80 EPK 18.2 18.20 ----- -------- Totals: 100.0 100.00
Comments:
thick = creamy buff Variations -- add 6 redart for oranger color thin.
Recipe: (Percent, Batch)
Nepheline syenite 40.9 40.90 Soda ash 17.3 17.30 Kentucky OM #4 13.8 13.80 Kona F-4 feldspar 9.8 9.80 EPK 18.2 18.20 ----- -------- Totals: 100.0 100.00
Comments:
thick = creamy buff Variations -- add 6 redart for oranger color thin.
Recipe: (Percent, Batch)
Kona F-4 feldspar 34.0 35.00 Spodumene 29.1 30.00 EPK 9.7 10.00 Soda ash 7.8 8.00 Nepheline syenite 14.6 15.00 Ball clay 4.9 5.00 ----- -------- Totals: 100.0 103.00
Comments:
Recipe: (Percent, Batch)
Nepheline syenite 43.4 43.42 Potash feldspar 44.7 44.74 Ball clay 11.8 11.84 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 5.3 5.26 Eutruia Marl 0.0 0.04
Comments:
Glaze type: ClayArt Listserv recipe < If you find this glaze useful, please consider submitting it to the GlazeBase project with full documentation. Use one of the GlazeBase submission formats available on the CeramicsWeb web page. Eturuia Marl is possibly a salt - perhaps add 5% salt and 1% Red Iron Oxide submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Kentucky OM #4 27.2 25.00 Kona F-4 feldspar 32.6 30.00 EPK 5.4 5.00 Soda ash 7.6 7.00 Spodumene 27.2 25.00 ----- -------- Totals: 100.0 92.00
Comments:
Dark, shiny orange. From Susan Harris.
Recipe: (Percent, Batch)
Nepheline syenite 40.0 40.00 Spodumene 30.0 30.00 OM-4 Ball Clay 17.0 17.00 EPK 5.0 5.00 Soda ash 8.0 8.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Soda ash 3.8 4.00 Spodumene 14.8 15.50 Kona F-4 feldspar 17.6 18.50 nsd 43.3 45.50 Kentucky OM #4 15.7 16.50 Redart 4.8 5.00 ----- -------- Totals: 100.0 105.00
Comments:
From Jeff Oestreich
Recipe: (Percent, Batch)
Nepheline syenite 43.0 43.00 Kona F-4 feldspar 10.0 10.00 Spodumene 14.0 14.00 Kentucky OM #4 15.0 15.00 EPK 14.0 14.00 Soda ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Kona F-4 feldspar 10.8 10.80 Spodumene 15.2 15.20 Ball clay 15.0 15.00 EPK 10.0 10.00 Soda ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Comments:
The best Shino recipe I've used is Jeff Oestreich's. It produces a beautiful orange peal surface, and not a lot of pinholes. This is a cone 10 glaze. submitted by: Todd Osborne e-mail: OSBORN10@MARSHALL.EDU
Recipe: (Percent, Batch)
Kona F-4 feldspar 10.5 10.49 Spodumene 14.8 14.76 EPK 9.7 9.71 Soda ash 3.9 3.88 Nepheline syenite 43.7 43.69 Ball clay 14.6 14.56 Redart clay 2.9 2.91 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.9 1.94
Comments:
I make no claims regarding these glazes' reliability or safety. I don't know of their origin. These are in use at Hui No'Eau in Makawao, Maui. sam tomich
Recipe: (Percent, Batch)
Custer feldspar 8.0 8.00 Spodumene 11.0 11.00 Soda ash 3.0 3.00 Nepheline syenite 37.0 37.00 Kentucky OM #4 11.0 11.00 Magnesium carbonate 4.0 4.00 EPK 26.0 26.00 ----- -------- Totals: 100.0 100.00
Comments:
" Stiff surface if applied thickly; will crack apart and expose the surface beneath. Great over dark stoneware or over dark slips on porcelain. Will not shift or run at cone 10. Cone 9-10 reduction." Coleman recipe from David Beumee
Recipe: (Percent, Batch)
Nepheline syenite 49.5 49.48 Spodumene 33.1 33.06 Zirconium silicate 5.0 4.99 Alumina hydrate 12.5 12.47 ----- -------- Totals: 100.0 100.00
Also add:
Salt 2.1 2.08 Bentonite 4.2 4.16
Comments:
submitted by: Brian Kemp e-mail: kempb@nievaxnieacsg
Recipe: (Percent, Batch)
Nepheline syenite 39.0 39.00 Kona F-4 feldspar 9.0 9.00 Kentucky OM #4 13.0 13.00 EPK 17.0 17.00 Redart 8.0 8.00 Soda ash 14.0 14.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
From Kent McLaughlin via Crystal Ribich. Recipe calls for 4 of the Redart to be calcined.
Recipe: (Percent, Batch)
Nepheline syenite 39.0 39.00 Soda ash 16.0 16.00 EPK 17.0 17.00 Kona F-4 feldspar 9.0 9.00 Redart clay 6.0 6.00 Kentucky OM #4 13.0 13.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 36.0 36.00 Kona F-4 feldspar 9.0 9.00 Spodumene 13.0 13.00 Kentucky OM #4 12.0 12.00 EPK 27.0 27.00 Soda ash (anhydrous) 3.0 3.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 36.1 36.07 Kona F-4 feldspar 8.6 8.62 Spodumene 12.2 12.22 Kentucky OM #4 12.0 12.02 EPK 28.1 28.06 Soda ash 3.0 3.01 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Kona F-4 feldspar 18.4 18.40 Spodumene 15.2 15.20 Kentucky OM #4 15.0 15.00 Soda ash 4.0 4.00 Nepheline syenite 45.0 45.00 EPK 2.4 2.40 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
from Shelley S. at shelleys@dimensional.com
Recipe: (Percent, Batch)
Soda ash 3.2 3.20 Spodumene 12.2 12.16 Kona F-4 Feldspar 8.6 8.64 Nepheline syenite 36.0 36.00 EPK 28.0 28.00 OM-4 Ball Clay 12.0 12.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.0 3.00
Comments:
Bentonite 3-5% on porcelain submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Kona F-4 feldspar 34.0 33.98 Spodumene 29.1 29.13 EPK 9.7 9.71 Soda ash 7.8 7.77 Nepheline syenite 14.6 14.56 Ball clay 4.9 4.85 ----- -------- Totals: 100.0 100.00
Comments:
I've enclosed a list (partial) of Shino recipes I've gleaned from ClayArt and the kindness of friends plus a few recipes from books. In each I've tried to give reference to the source of the glaze. I've tried to be as accurate as possible in copying these. Please excuse any errors. Albert Weinhardt, 99 Bowls of Tea on the Wall Pottery submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Kona F-4 feldspar 34.0 33.98 Spodumene 29.1 29.13 EPK 9.7 9.71 Soda ash 7.8 7.77 Nepheline syenite 14.6 14.56 Ball clay 4.9 4.85 ----- -------- Totals: 100.0 100.00
Comments:
I've enclosed a list (partial) of Shino recipes I've gleaned from ClayArt and the kindness of friends plus a few recipes from books. In each I've tried to give reference to the source of the glaze. I've tried to be as accurate as possible in copying these. Please excuse any errors. Albert Weinhardt, 99 Bowls of Tea on the Wall Pottery submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Soda ash 3.1 3.05 Nepheline syenite 57.3 57.31 Spodumene 24.0 23.97 Ball clay 15.7 15.67 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.4 3.41
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Soda ash 3.1 3.05 Nepheline syenite 57.3 57.31 Spodumene 24.0 23.97 Ball clay 15.7 15.67 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.4 3.41
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 56.1 56.11 Salt 2.9 2.93 Calcined kaolin 15.1 15.13 EPK 16.8 16.78 rhyolite 9.1 9.05 ----- -------- Totals: 100.0 100.00
Comments:
Ceramics Monthly p. 27 collection of articles on wood-firing. Also U NM glaze recipes.
Recipe: (Percent, Batch)
Nepheline syenite 47.5 47.50 Soda ash 5.0 5.00 Dolomite 0.0 0.01 Whiting 0.1 0.10 EPK 45.9 45.90 Silica 1.3 1.30 Rutile 0.1 0.10 Red iron oxide 0.1 0.06 ----- -------- Totals: 100.0 99.97
Comments:
Ceramics Monthly p. 27 collection of articles on wood-firing. Also U NM glaze recipes.
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Kona F-4 Feldspar 10.8 10.80 Spodumene 15.2 15.20 OM-4 Ball Clay 15.0 15.00 EPK 10.0 10.00 Soda ash 4.0 4.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Soda ash 10.0 10.00 Spodumene 40.0 40.00 Nepheline syenite 40.0 40.00 OM-4 Ball Clay 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.5 1.50
Comments:
Percentage Analysis: best in salt or woodfire. Mix with cone 6 Shino type glaze to vary the firing temperatures between cone 6 and cone 10. source for original recipe: Crain Edwards submitted by: Lee Love e-mail: leelove@mill2.MillComm.COM
Recipe: (Percent, Batch)
Nepheline syenite 45.0 41.56 Spodumene 30.0 27.67 EPK 25.0 23.08 ----- -------- Totals: 100.0 92.31
Also add:
Zircopax 4.5 4.20 Bentonite 3.8 3.50
Comments:
white cool, reddish-orange fired higher in kiln.
Recipe: (Percent, Batch)
Soda feldspar 42.2 42.24 Spodumene 36.1 36.14 Kaolin 12.0 12.01 Soda ash 9.6 9.61 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 60.6 60.61 Kentucky OM #4 20.2 20.21 Spodumene 15.2 15.16 Soda ash 4.0 4.02 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.3 2.33
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Custer feldspar 42.4 42.42 Spodumene 36.4 36.36 EPK 12.1 12.12 Soda ash 9.1 9.09 ----- -------- Totals: 100.0 99.99
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Kona F-4 feldspar 34.0 34.00 Spodumene 29.0 29.00 Nepheline syenite 14.5 14.50 EPK 10.0 10.00 Soda ash 7.5 7.50 Kentucky OM #4 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
From Suze Lindsay.
Recipe: (Percent, Batch)
Spodumene 23.1 23.10 Ball clay 8.0 8.00 Kaolin - theoretical 24.7 24.70 Ash wood 37.0 37.00 Silica 7.3 7.30 ----- -------- Totals: 100.0 100.10
Comments:
From Suze Lindsay.
Recipe: (Percent, Batch)
Nepheline syenite 68.2 68.10 Spodumene - theoretical 9.7 9.70 Ball clay 12.1 12.10 Lithium carbonate 3.3 3.30 Whiting 1.0 1.00 Silica 5.7 5.70 ----- -------- Totals: 100.0 99.90
Comments:
From Suze Lindsay.
Recipe: (Percent, Batch)
Nepheline syenite 68.2 67.60 Spodumene 10.2 10.10 Kentucky OM #4 11.1 11.00 Lithium carbonate 3.4 3.40 Whiting 1.0 1.00 Silica 6.1 6.00 ----- -------- Totals: 100.0 99.10
Comments:
From Suze Lindsay.
Recipe: (Percent, Batch)
Nepheline syenite 44.6 44.60 Spodumene 27.9 27.90 Kentucky OM #4 10.6 10.60 Ash wood 14.1 14.10 Silica 2.8 2.80 ----- -------- Totals: 100.0 100.00
Comments:
From Suze Lindsay.
Recipe: (Percent, Batch)
Kona F-4 feldspar 18.0 18.00 Spodumene 15.0 15.00 Soda ash 4.0 4.00 Nepheline syenite 47.0 47.00 Tennessee ball clay 16.0 16.00 ----- -------- Totals: 100.0 100.00
Comments:
submitted by: Albert Weinhardt e-mail: WeinhardtA@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 40.9 40.90 Soda ash 17.3 17.30 Kentucky OM #4 13.8 13.80 Kona F-4 feldspar 9.8 9.80 EPK 18.2 18.20 ----- -------- Totals: 100.0 100.00
Comments:
thick = creamy buff Variations -- add 6 redart for oranger color thin.
Recipe: (Percent, Batch)
Whiting 18.8 18.82 Cornwall Stone 20.1 20.12 Custer feldspar 41.0 41.04 Kentucky OM #4 9.1 9.11 Kaolin 7.9 7.91 Zinc oxide 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 6.1 6.11 Rutile 4.0 4.00
Comments:
Pat--I used to use a glaze called shrimp which I took from Ceramics Monthly, Feb. '79, p. 48. I fired it to ^9-10 in gas reduction. Good luck. submitted by: Dave Eitel e-mail: daveitel@execpc.com source for original recipe: Ceramics Monthly
Recipe: (Percent, Batch)
Nepheline syenite 45.0 45.00 Magnesium carbonate 55.0 55.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 2.0 2.00
Comments:
High magnesium causes the cobalt to go a mauve color rather than blue. Texture glaze with a dry mud-flats crack over a gloss base.
Recipe: (Percent, Batch)
Nepheline syenite 10.0 10.00 Avery kaolin 80.0 80.00 XX Sagger clay 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
Avery Kaolin is no longer available. He also included a recipe for a flashing slip which works best in soda firing doug gray Alpine, TX dgray@sul-ross-1.sulross.edu
Recipe: (Percent, Batch)
Grog,150 mesh 80.0 80.00 Kaolin 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Add color to taste. Kawai used a lot of thick slip trailing in his work and this was given to me by one of his apprentices, Doug Lawrie. submitted by: June M. Perry e-mail: GURUSHAKTI@aol.com
Recipe: (Percent, Batch)
Nepheline syenite 20.0 20.00 China clay 30.0 30.00 Calcined kaolin 30.0 30.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
This variant was suggested by Jeremy Nudell Kalin on ClayArt, who tested it and said it worked quite well over a typical light colored saltglazing body in a kiln fired with soda ash and a little rock salt at the end.
Recipe: (Percent, Batch)
Avery kaolin 25.0 25.00 Grolleg 50.0 50.00 Calcined kaolin 25.0 25.00 ----- -------- Totals: 100.0 100.00
Comments:
Does anyone know of a good substitute for Avery since it is not longer available or is it? I get a very satisfying orange with this at cone 10 in a salt fring. Now I've run out and need some suggestions. kurt wild
Recipe: (Percent, Batch)
Grolleg Kaolin 57.0 57.00 OM-4 Ball Clay 35.0 35.00 Nepheline syenite 8.0 8.00 ----- -------- Totals: 100.0 100.00
Comments:
I've tried a bunch, and not had much luck until recently. I've been using one for a few firings now that I like pretty well; it responds in an interesting way to different atmospheres and clay bodies. A little more inFiring: Some salting is involved in all of the wood firings I have used this slip in- generally about 1 1/2 - 3 pounds per chamber. These are not super long firings -in the 14-18 hour range, so a lot of the surface effect comes from the salt rather than from a lot of ash. I have also used it in salt/soda and it looked great-more orange than brown. I haven't used it with a real heavy load of salt but if you try it I'd like yo know how it looks. Mix just a little on the thin side and its works on bisque just as well as on geenware I've been working up some variations using Helmer kaolin, but haven't hit one I like yet. If you get a response about the Avery will you pass it along? Thanks- if you try this out let me know what you think. submitted by: John Anthony e-mail: JTRAX@AOL.com
Recipe: (Percent, Batch)
Kaolin 12.5 12.50 Ball clay 18.8 18.80 Feldspar 25.0 25.00 Frit 3110 12.5 12.50 Silica 31.3 31.30 ----- -------- Totals: 100.0 100.10
Comments:
Variations -- Slip Additives: Bentonite (2%) Improves Plasticity. CMC- a cellulose gum additive which functions as a thickener, binder, and suspending agent. Plastic Vitrox Clay- a plasticizing feldspar, low shrinkage. Pyrax(Pyrophyllite)- reduces thermal expansion in clay bodies. Colorants: Chrome Oxide 1-8% Pale to Dark Green(Chrome fumes onto other pots) Chrome Oxide .5-1% Peach or pink with alkaline glaze(peach/pink is difficult) Cobalt Carbonate 1-8% Pale tp dark blue. Cobalt Oxide 1/2-5% Same blues (Ox. spots more than Carb.) Copper Carbonate 2-8% Pink and reds.(fumes into glaze surface) Copper Oxide (black or red) 1-5% (Red Cu Ox. is hard to use) Iron Chromate 2-10% Opaque Grays Red Iron Oxide 5-50% Tan to saturated Iron Red Brown. Rutile 4-10% tan(excellent in salt firing, runny golds and blues) Manganese Dioxide 2-8% Brown or purple, depending on the glazes Nickel 1-10% gray to green gray Opacifiers- 1-5% Tin Oxide, 3-10% Superpax, Opax, Zircopax
Recipe: (Percent, Batch)
Alberta slip 94.7 90.00 Nepheline syenite 5.3 5.00 ----- -------- Totals: 100.0 95.00
Also add:
Cobalt oxide 5.3 5.00
Comments:
UF shop slip.
Recipe: (Percent, Batch)
Alberta slip 94.7 90.00 Nepheline syenite 5.3 5.00 ----- -------- Totals: 100.0 95.00
Also add:
Cobalt oxide 5.3 5.00
Comments:
UF shop slip.
Recipe: (Percent, Batch)
----- -------- Totals: 0.0 0.00
Comments:
This slip bleeds slightly under Doug's base glaze. Done deliberately for effect. Clay Porcelain Peltzman as slip 1 cup + 6600 Black Mason Stain 40 gms. Base Glaze Peltzsman over. Pottery Making Illus. Jul/Aug. 2013
Recipe: (Percent, Batch)
Kaolin 21.1 21.10 Ball clay 21.1 21.10 Nepheline syenite 26.3 26.30 Silica 31.6 31.60 ----- -------- Totals: 100.0 100.10
Comments:
Variations -- Slip Additives: Bentonite (2%) Improves Plasticity. Borax (5%) Toughens slip in dry state for handling. CMC- a cellulose gum additive which functions as a thickener, binder, and suspending agent. Plastic Vitrox Clay- a plasticizing feldspar, low shrinkage. Pyrax(Pyrophyllite)- reduces thermal expansion in clay bodies. Colorants: Chrome Oxide 1-8% Pale to Dark Green(Chrome fumes onto other pots) Chrome Oxide .5-1% Peach or pink with alkaline glaze(peach/pink is difficult) Cobalt Carbonate 1-8% Pale tp dark blue. Cobalt Oxide 1/2-5% Same blues (Ox. spots more than Carb.) Copper Carbonate 2-8% Pink and reds.(fumes into glaze surface) Copper Oxide (black or red) 1-5% (Red Cu Ox. is hard to use) Iron Chromate 2-10% Opaque Grays Red Iron Oxide 5-50% Tan to saturated Iron Red Brown. Rutile 4-10% tan(excellent in salt firing, runny golds and blues) Manganese Dioxide 2-8% Brown or purple, depending on the glazes Nickel 1-10% gray to green gray Opacifiers- 1-5% Tin Oxide, 3-10% Superpax, Opax, Zircopax
Recipe: (Percent, Batch)
Grolleg 32.0 32.00 Custer feldspar 32.0 32.00 Ball clay 8.0 8.00 Silica 24.0 24.00 Plastic vitrox 2.0 2.00 Pyrax 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
CMC 2.0 2.00
Comments:
From Susan Filley. CMC functions as a binder, thickener, and suspending agent. PV clay is a plasticizing feldspar for low shrinkage. Variations -- + 2% bentonite for better plasticity + 5% borax for tougher dry state handling Colorants: Chrome oxide 1-8% = pale to dk. green Cobalt carbonate or oxide 0.5-8% pale to dk. blue Copper carbonate 2-8% = pinks to reds Copper oxide 1-5% Iron chromate 2-10% grays RIO 5-50% tan to saturated iron red-brown Rutile 4-10% tan. Good in salt - golds and blues. Manganese diox. 2-8% brown or purple, depending on glaze Nickel 1-10% gray to green gray Stains - start with about 10%
Recipe: (Percent, Batch)
Nepheline syenite 24.0 24.00 EPK 44.0 44.00 Calcined kaolin 30.0 30.00 Neuman Red clay 2.0 2.00 ----- -------- Totals: 100.0 100.00
Comments:
Opaque red orange brown slip or engobe. Apply thinly to bisqueware, slip should be very thin. Dipping or spraying works well. Dampening the bisque will aid in adhesion and in getting a thin coat C-Red clay would be a good substitute, or try your local earthenware clay. If possible, use clays low in magnesia and calcia. I often add more red clay to this (perhaps double the amount) for a darker flashed color in wood or soda, sometimes just mixing in some red clay terra sigilatta by eye as I thin the slip for spraying. From Pottery Making Illustrated.
Recipe: (Percent, Batch)
Avery kaolin 75.0 75.00 Nepheline syenite 25.0 25.00 ----- -------- Totals: 100.0 100.00
Comments:
From Peter Beasecker Variations -- Add soda ash: handful per 10,000 gm batch
Recipe: (Percent, Batch)
Grolleg 30.0 30.00 #6 Tile clay 20.0 20.00 EPK 10.0 10.00 XX Sagger clay 10.0 10.00 Custer feldspar 15.0 15.00 Flint 10.0 10.00 Nepheline syenite 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
From Peter Beasecker.
Recipe: (Percent, Batch)
Nepheline syenite 10.0 10.00 Avery kaolin 80.0 80.00 XX Sagger clay 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
Avery Kaolin is no longer available. He also included a recipe for a flashing slip which works best in soda firing doug gray Alpine, TX dgray@sul-ross-1.sulross.edu
Recipe: (Percent, Batch)
Kaolin 40.0 40.00 Ball clay 10.0 10.00 Potash feldspar 25.0 25.00 Silica 25.0 25.00 ----- -------- Totals: 100.0 100.00
Comments:
Variations -- Slip Additives: Bentonite (2%) Improves Plasticity. Borax (5%) Toughens slip in dry state for handling. CMC- a cellulose gum additive which functions as a thickener, binder, and suspending agent. Plastic Vitrox Clay- a plasticizing feldspar, low shrinkage. Pyrax(Pyrophyllite)- reduces thermal expansion in clay bodies. Colorants: Chrome Oxide 1-8% Pale to Dark Green(Chrome fumes onto other pots) Chrome Oxide .5-1% Peach or pink with alkaline glaze(peach/pink is difficult) Cobalt Carbonate 1-8% Pale tp dark blue. Cobalt Oxide 1/2-5% Same blues (Ox. spots more than Carb.) Copper Carbonate 2-8% Pink and reds.(fumes into glaze surface) Copper Oxide (black or red) 1-5% (Red Cu Ox. is hard to use) Iron Chromate 2-10% Opaque Grays Red Iron Oxide 5-50% Tan to saturated Iron Red Brown. Rutile 4-10% tan(excellent in salt firing, runny golds and blues) Manganese Dioxide 2-8% Brown or purple, depending on the glazes Nickel 1-10% gray to green gray Opacifiers- 1-5% Tin Oxide, 3-10% Superpax, Opax, Zircopax
Recipe: (Percent, Batch)
Grolleg 42.5 42.50 Calcined kaolin 42.5 42.50 Nepheline syenite 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
From Sam Chung.
Recipe: (Percent, Batch)
China clay 30.0 30.00 Calcined kaolin 30.0 30.00 EPK 20.0 20.00 Nepheline syenite 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
I recently made up a test batch of Jeremy Nudell Kalin's recipe for a fake Avery woodfire flashing slip. I put it on some test bowls made from Miller 510, which is a packaged cone 10 white stoneware, the makeup of which I don't know. The slip was a little thin when I mixed it , so I used a little epsom salts to thicken to what I am used to with an Avery slip going on leather hard. Fired to ^10, it flashed gorgeously, but also cracked and jumped off the pots. Any suggestions for a better fit? Bentonite? I guess I should find out more about the clay body before submitting this, and I will do that. In the meantime, any suggestions would be most welcome.TIA submitted by: John Anthony source for original recipe: Jeremy Nudell Kalin e-mail: JTRAX@AOL.com
Recipe: (Percent, Batch)
Grolleg 50.0 50.00 Newman Red 10.0 10.00 EPK 10.0 10.00 Nepheline syenite 30.0 30.00 ----- -------- Totals: 100.0 100.00
Comments:
Clay Times May/June 2002
Recipe: (Percent, Batch)
AP Green Fireclay 22.5 22.52 OM-4 Ball Clay 22.5 22.52 Cedar Heights Goldart Clay 22.5 22.52 EPK 22.5 22.52 Custer feldspar 5.4 5.41 Silica 4.5 4.50 ----- -------- Totals: 100.0 99.99
Comments:
Also add: Grog to taste New to sprayed soda, I'll reply with what I did. My clay body is an APGreen based stoneware with no added iron and lightened up with some EPK, It has some pyrophillite grog from Cedar Heights, and some fine silica sand. Clay body used by Makenzie Smith at TAMUCC workshop 1995. The firing was done in oxidation. Some of my students had some darker clays in the kiln and reduction gives a form of boredom brown to them. As the kiln was cone 9 ish I started to spray in the 1 gallon of water with 5 pounds of soda ash (approximate). A nice variety of residual soda effects resulted with orange peel on some rims and dry surfaces where pots were tightly stacked. When the hot spot in the kiln showed a little warping of the pots the kiln was turned off. The firing from dull red heat took about 16 hours. It could have been done quicker, but there were numerous orifice adjustments and I like to go slow in a new kiln. I do my best to have the kiln going slower than 1 cone per hour above cone 8. I think it produces more lively glaze surfaces. submitted by: Louis Katz e-mail: lkatz@falcon.tamucc.edu
Recipe: (Percent, Batch)
Nepheline syenite 31.6 31.60 Ball clay 63.1 63.20 Flint 5.3 5.30 ----- -------- Totals: 100.0 100.10
Also add:
Zircopax Plus 5.3 5.30 Titanium dioxide 7.0 7.00
Comments:
From McKenzie Smith, who says, "She's a honey in soda Not sure about porcelain but on stoneware it sure is nice."
Recipe: (Percent, Batch)
Calcined kaolin 25.0 25.00 Ball clay 25.0 25.00 Potash feldspar 45.0 45.00 Ferro frit 3124 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
originally specified Calcium Borate Frit - almost any calcium boron frit should work. High firing, possibly Stoneware Steve Mills @Bath Potters Supplies, Dorset Close, Bath BA2 3RF, UK Tel:(44) (0)1225 337046 Fax:(44) (0)1225 462712 stevemills@bathpotters.demon.co.uk
Recipe: (Percent, Batch)
Kentucky OM #4 45.0 45.00 Calcined kaolin 45.0 45.00 Nepheline syenite 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Titanium dioxide 10.0 10.00
Comments:
apply to bisque. From Sam Chung.
Recipe: (Percent, Batch)
Gerstley borate 60.0 60.00 Mason 6600 black stain 40.0 40.00 ----- -------- Totals: 100.0 100.00
Comments:
From Nancy Barbour. A bit too paten leather if used on large areas, so I add a bit of RIO to mellow it. Used at different stage for a variety of black and grey. Mimicks ink. Thick=black, thin= grey.
Recipe: (Percent, Batch)
EPK 46.9 46.90 Kentucky OM #4 46.9 46.90 Borax 6.1 6.10 ----- -------- Totals: 100.0 99.90
Also add:
Zircopax 11.7 11.70
Comments:
Recipe: (Percent, Batch)
Ball clay 75.0 75.00 Kaolin 10.0 10.00 Flint 10.0 10.00 Feldspar 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
comments: Robin Hopper cites this decorating slip: He says it is useable from C04 to C12, and if unaltered fires to a "basic white." (On a buff stoneware fired C10R, it gives a grey-tone white).To this slip, to get black, he would add 5% (+/-) of his black stain which has the following ingredients: 20% chromium oxide 20% cobalt (oxide or carbonate) 20% manganese (di)oxide 20% iron oxide red 8% feldspar (any) 8% kaolin (any) 4 flint He states this mixture is best after being ball-milled for a minimum of four hours to eliminate specking. He says 5% is enough for a clear glaze, more may be needed for an opaque glaze (or slip as above). If this approach isn't suitable to your friend, perhaps it will provide a simple guide towards a black slip. Salut! Tom.Buck submitted by: Tom Buck source for original recipe: Robin Hopper e-mail: Tom.Buck@freenet.hamilton.on.ca
Recipe: (Percent, Batch)
Nepheline syenite 10.0 10.00 Avery kaolin 80.0 80.00 XX Sagger clay 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
Avery Kaolin is no longer available. He also included a recipe for a flashing slip which works best in soda firing doug gray Alpine, TX dgray@sul-ross-1.sulross.edu
Recipe: (Percent, Batch)
Grolleg 93.3 84.00 Borax 6.7 6.00 ----- -------- Totals: 100.0 90.00
Also add:
Zircopax 11.1 10.00
Comments:
Recipe: (Percent, Batch)
Kaolin - theoretical 72.7 72.70 Magnesium carbonate 0.7 0.70 Wollastonite 0.1 0.10 Frit 3185 6.5 6.50 Nepheline syenite 14.3 14.30 Alumina hydrate 5.0 5.00 Rutile 0.0 0.03 Red iron oxide 0.7 0.70 ----- -------- Totals: 100.0 100.03
Also add:
Zircopax 10.0 10.00
Comments:
Recipe: (Percent, Batch)
Grolleg 93.3 84.00 Borax 6.7 6.00 ----- -------- Totals: 100.0 90.00
Also add:
Zircopax 11.1 10.00
Comments:
Recipe: (Percent, Batch)
EPK 51.0 51.00 Kentucky OM #4 37.0 37.00 Custer feldspar 8.0 8.00 Whiting 3.0 3.00 Flint 1.0 1.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 8.0 8.00
Comments:
copper red in reduction, pale green in oxidation.
Recipe: (Percent, Batch)
EPK 36.0 36.00 Kentucky OM #4 27.0 27.00 Custer feldspar 15.0 15.00 Whiting 7.0 7.00 Flint 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
2000 grams fills 2 quart containers. Variations -- white +7% opax blue: + 3% cobalt carb + 0.5% chrome oxide green: +4% chrome
Recipe: (Percent, Batch)
Redart 40.0 40.00 Custer feldspar 20.0 20.00 Ball clay 40.0 40.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 5.0 5.00 Cobalt carbonate 2.0 2.00 Manganese dioxide 5.0 5.00 Chromium oxide 1.0 1.00
Comments:
Recipe: (Percent, Batch)
Redart 46.7 50.00 Ball clay 23.4 25.00 Manganese dioxide 14.0 15.00 black stain 11.2 12.00 Black iron oxide 4.7 5.00 ----- -------- Totals: 100.0 107.00
Comments:
From Ruthann Tudball's "Soda Glazing"
Recipe: (Percent, Batch)
Nepheline syenite 31.5 31.58 Ball clay 62.9 63.16 Silica 5.6 5.60 ----- -------- Totals: 100.0 100.34
Also add:
Tin oxide 5.2 5.26 Titanium dioxide 10.5 10.53
Comments:
Used in Curaumilla on raw dry clay. Lovely ochre color that gets good surface in salt and wood.
Recipe: (Percent, Batch)
Nepheline syenite 31.6 31.60 Ball clay 63.1 63.20 Flint 5.3 5.30 ----- -------- Totals: 100.0 100.10
Also add:
Zircopax Plus 5.3 5.30 Titanium dioxide 7.0 7.00
Comments:
From McKenzie Smith, who says, "She's a honey in soda Not sure about porcelain but on stoneware it sure is nice."
Recipe: (Percent, Batch)
Potash feldspar 43.1 43.07 Whiting 18.4 18.41 Silica 11.0 11.01 Kaolin 22.8 22.77 Zinc oxide 4.7 4.74 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 1.9 1.90 Rutile 2.9 2.85 Cobalt oxide 1.0 0.95 Red iron oxide 7.6 7.59
Comments:
Here is a cone 9-10 black glaze recipe that has no name but looks like what you describe; irridescent, satin charcoal black in reduction; like a black pearl. I acquired this glaze 25 years ago & if I had a gas kiln this would still be my favorite glaze. submitted by: Anne Fallis-Elliott, NYC e-mail: FallisT@aol.com
Recipe: (Percent, Batch)
Custer spar 45.9 45.85 Flint 24.5 24.45 Whiting 14.2 14.19 Ball clay 8.7 8.73 Borax 4.6 4.59 Zinc oxide 2.2 2.18 ----- -------- Totals: 100.0 99.99
Also add:
Cobalt oxide 5.0 5.02 Red iron oxide 3.3 3.28 Chrome oxide 1.1 1.09
Comments:
----------------------------Original message---------------------------- You probably got the recipe already considering how long it takes me to research it, but here is the one that we use at the school. Note that this recipe is set for larger batches and all quantities are in grams. Good Luck Sorry I forgot the particulars. And since I have neglected ( because I was movingwhile working full time) to keep up with the group, I am now looking at 802 messages, many of which I will not read and will have to pick up the new threads as they come along. It is also why this response is not more timely. Sloan's Black is a cone 10 glaze; as I am sure that Vince or someone in this group has subsequently pointed out. At (10) the glaze is a thick rich black with a silvery surface finish. At (11) it is a very nice glossy black of the same thick substance. Dave Durnford Box 2145 Missoula, Montana 59806 University of Montana Art Department Durnford@selway.umt.edu
Recipe: (Percent, Batch)
Barium carbonate 2.0 2.02 Calcined Zinc Oxide 4.0 4.04 Lithium carbonate 2.0 2.02 Whiting 14.1 14.14 Custer feldspar 50.5 50.51 Ferro Frit 3134 7.1 7.07 Silica, (325 mesh) 20.2 20.20 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 0.6 0.61 Tin oxide 1.0 1.01 Bentonite 1.0 1.01
Comments:
GREAT BLUE/RED /DARK BLUE! My experience with copper red is that what matters most is to begin reduction at cone 012 fairly heavy and then go into moderate reduction after cone 05 drops. Continue moderate to light reduction until cone 10 then a brief oxidation peroid of about 10 minutes. If you over reduce it will be liver brown and under reduced will be celadon. One solution to a problem (uneven, spotty reduction and under reduced)we had was to turn down the gas and air. To slow it down and reduce at the above schedule. We were firing in an Alpine updraft with blowers and just running the same schedule as the people who fired before us. (It was a community center). They were firing at 4 pounds pressure (natural gas) with the blowers at 70. Something like that. But we reduced the gas and the air and the firing was 100% better. No more spotty reduction or unreduced pots. (I kind of miss those unwanted interesting results though.) submitted by: John Britt e-mail: claydude@erinet.com
Recipe: (Percent, Batch)
Custer spar 30.0 30.00 EPK 24.0 24.00 Spodumene 20.0 20.00 Dolomite 22.0 22.00 Whiting 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 6.0 6.00
Comments:
Similar to T.S. Spodumene. Thick= creamy buff; med.= tan ivory; thin = rust brown Breaks over texture. Glaze Type: Ca Mg AlMatt. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer spar 28.0 28.00 Spodumene 18.0 18.00 Dolomite 20.0 20.00 EPK 23.0 23.00 Whiting 4.0 4.00 Wollastonite 4.0 4.00 Bone ash 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 5.0 5.00
Comments:
May substitute 6% Zircopax for Tin. Earthy colors - white to creamy white to tan to orangish brown to red rust to brown. Glaze Type: Ca Mg AlMatt. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer feldspar 30.0 30.00 EPK 25.0 25.00 Dolomite 22.0 22.00 Spodumene 20.0 20.00 Whiting 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 5.0 5.00
Comments:
We used to use a spodumene glaze back in college that when applied thin, would produce the same results. As the glaze gets thicker, it turns a fat white with orange to brown spots, the thicker the glaze, the fewer spots. submitted by: Dianna Rose Downs e-mail: rdowns@why.net
Recipe: (Percent, Batch)
Custer feldspar 30.0 30.00 Spodumene 20.0 20.00 EPK 26.0 26.00 Dolomite 22.0 22.00 Whiting 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 6.0 6.00
Comments:
Creamy Tan where thick, rusty brown where thin. Glaze Type: Ca Mg AlMatt. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer spar 50.0 50.00 Whiting 15.0 15.00 EPK 13.0 13.00 Dolomite 2.0 2.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 8.0 8.00 Red iron oxide 1.0 1.00 Bentonite 2.0 2.00
Comments:
Chris used this on porcelain, soda fired.
Recipe: (Percent, Batch)
Custer feldspar 45.0 45.00 Whiting 1.0 1.00 Dolomite 25.0 25.00 Kaolin - theoretical 11.0 11.00 Silica 18.0 18.00 ----- -------- Totals: 100.0 100.00
Also add:
Copper carbonate 0.7 0.70 Red iron oxide 0.1 0.07 Bentonite 0.2 0.20
Comments:
Chris used this on porcelain, soda fired.
Recipe: (Percent, Batch)
Dolomite 18.0 18.00 Whiting 3.0 3.00 Custer feldspar 54.0 54.00 EPK 25.0 25.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
Here is a stoney matte that I used to use a long time ago. It was a really nice glaze back then and assume that it still is. the color is quite effected by the thickness of the glaze, the thicker the glaze, the whiter. Nice with variation of thickness. This is a fairly stiff glaze. submitted by: Dianna Rose Downs source for original recipe: Ceramics Monthly 1981 e-mail: rdowns@unicomp.net
Recipe: (Percent, Batch)
Potash feldspar 45.5 45.45 Flint 25.3 25.25 Whiting 14.1 14.14 Zinc oxide 4.0 4.04 Ferro frit 3134 7.1 7.07 Barium carbonate 2.0 2.02 Lithium carbonate 2.0 2.02 ----- -------- Totals: 100.0 99.99
Also add:
Bentonite 2.0 2.02 Tin oxide 1.0 1.01 Copper carbonate 0.6 0.61
Comments:
These are glazes I got on Maui. I make no claims regarding these glazes' reliability or safety. I don't know of their origin. These are in use at Hui No'Eau in Makawao, Maui. Sam Tomich
Recipe: (Percent, Batch)
Nepheline syenite 51.1 51.08 Spodumene 5.7 5.74 Magnesium carb 0.1 0.09 Strontium carbonate 26.6 26.58 EPK 8.3 8.29 Flint 8.2 8.22 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Nepheline syenite 58.0 58.00 Strontium carbonate 26.0 26.00 Lithium carbonate 1.0 1.00 Kentucky OM #4 10.0 10.00 Flint 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Cornwall Stone 21.0 21.00 Kona F-4 27.0 27.00 Whiting 9.0 9.00 Dolomite 10.0 10.00 Talc 6.0 6.00 EPK 19.0 19.00 Flint 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00
Comments:
From Lee Rexrode @ Edinboro U
Recipe: (Percent, Batch)
Cornwall Stone 23.7 23.70 F-4 spar 30.8 30.80 Whiting 10.7 10.70 Dolomite 11.8 11.80 Talc 7.1 7.10 EPK 4.7 4.70 Glomax 1.8 1.80 Flint 9.5 9.50 ----- -------- Totals: 100.0 100.10
Also add:
Bentonite 2.0 2.00
Comments:
From Sandy Lance @ Univ. of FL. Variations -- Light to dark intensity blue: Cobalt .25%, .50%, .75%, 1%, 2% soft honey yellow: Mn 1%, 2%, 4% saddle tan: titanium diox .25%, .5 % , .75%, 1% Mottled Green: nickel 1%, 2% Red/or/yellow inclusion stains: 1% soft, 5% med, 10% strong
Recipe: (Percent, Batch)
Feldspar FFF 12.9 12.92 Dolomite 13.8 13.82 Whiting 2.9 2.87 Ball clay 31.8 31.77 Red clay 23.4 23.39 Flint 15.2 15.24 ----- -------- Totals: 100.0 100.01
Also add:
Red iron oxide 3.2 3.17 Titanium dioxide 0.3 0.35 Manganese dioxide 0.2 0.21
Comments:
SEM/92 HARROW ALBANY SLIP (from Victor Bryant 100672.2103@compuserve.com): What kind of Feldspar is FFF? Is it similar to something I might already have (Kona F4, Custer and Cornwall Stone)? I would like to test this recipe without having to drive to Oakville for 1 ingredient. TIA for all your help. sam - alias the cat lady Home of Manx cats, Cavalier King Charles Spaniels and the odd horse Melbourne, Ontario, CANADA (SW Ontario) http://www.geocities.com/paris/3110
Recipe: (Percent, Batch)
Custer feldspar 35.6 35.60 Whiting 21.8 21.80 Talc 2.0 2.00 Bone ash 2.0 2.00 OM-4 Ball clay 5.9 5.90 Silica 29.7 29.70 Ferro Frit 3134 3.0 3.00 ----- -------- Totals: 100.0 100.00
Comments:
Ferro Frit 3134 3 (He doesn't specify what frit to use so I use this.) While we are on synthetic Mashiko/Hamada glazes, here is a synthetic Nuka (white rice hull ash glaze) from Phil Rogers' _Ash Glazes_. It works nicely over temmoku, at the top of bottles, creating a waterfall effect where it dances over the black temmoku. Has no tin in it. It is a silica white, very white by itself. The bone ash creates bubbles that opacify and add to the brightness of the white. I only use it either dipped or trailed over temmoku. Too shiny white otherwise, unless used unevenly over a dark body. submitted by: Lee in PigsEye e-mail: leelove@MILL2.MILLCOMM.COM source for original recipe: Phil Rogers ^9/10
Recipe: (Percent, Batch)
Cornwall Stone 46.0 46.00 Whiting 34.0 34.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Titanium dioxide 6.0 6.00 Red iron oxide 4.0 4.00
Comments:
Webs and streaks nicely. Medium tan thin to creamy gold beige thick. VC ed Corrected 6/91
Recipe: (Percent, Batch)
Cornwall Stone 46.0 46.00 Whiting 34.0 34.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Titanium dioxide 6.0 6.00 Red iron oxide 4.0 4.00
Comments:
Webs and streaks nicely. Medium tan thin to creamy gold beige thick. VC ed Corrected 6/91
Recipe: (Percent, Batch)
Dolomite 34.5 33.30 Custer spar 31.1 30.00 Kentucky OM #4 34.5 33.30 ----- -------- Totals: 100.0 96.60
Comments:
Simple, easy tan. Semi-matt. I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
Custer spar 56.2 56.80 Dolomite 13.5 13.60 Whiting 10.5 10.60 Zinc oxide 3.0 3.00 EPK 15.8 16.00 Magnesium carbonate 1.0 1.00 ----- -------- Totals: 100.0 101.00
Also add:
Rutile 4.0 4.00
Comments:
Very reliable *How long have you been using this glaze? 24 years *Where did this recipe come from? Claude Laliberté, Québec City *What do you like most about this glaze? Beautiful color and slightly textured surface 100% reliable. It has no surface defects *How does the glaze behave on different clay bodies? Very well Medium application thickness. *How does this glaze interact with other glazes? Well *What is your kiln type and size? Downdraft propane,60 cubic feet *How do you typically fire? Clay reduction at cone/08, then light reduction increasing with time until the final total reduction, followed by a period of reoxidation *Any other comments? The glaze is named "Mag" for an extra amount of magnesium carbonate that was added to the orginal recipe to obtain a good melt. *GlazeBase recipe* Submitted by: Edouard Bastarache (edouardb@sorel-tracy.qc.ca) Ice Cream Flavor: Vanilla
Recipe: (Percent, Batch)
Custer feldspar 25.0 25.00 Kona F-4 feldspar 25.0 25.00 Calcined kaolin 15.0 15.00 EPK 10.0 10.00 Dolomite 20.0 20.00 Whiting 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 3.0 3.00 Granular ilmenite 2.0 2.00
Comments:
Base Glaze is matt white. Was also made with 50 Oxford spar in place of Custer and Kona. All derive from Rhodes White Matt in his Clay and Glazes book. Glaze Type: Ca Mg AlMatt. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Potash feldspar 39.1 39.05 Dolomite 12.9 12.92 Colemanite 5.8 5.79 Magnesium carbonate 2.4 2.36 Zinc oxide 1.1 1.13 Kaolin 9.4 9.42 Flint 29.3 29.33 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt oxide 0.5 0.50 Chrome oxide 0.5 0.50 Bentonite 0.3 0.30
Comments:
This has been fired in reduction but I suspect it will work in oxidation. If anybody tries it in oxidation, please let me know the results. I love this stuff as an accent. It has a long firing range, I suspect ^9 - ^11. It's very forgiving, very stiff and should go on just fine as a light cream consistency dipped. Peace and long life....and yes, it's raining but I saw two rainbows yesterday while cleaning porch # 1 with mildicide Emily emily henderson
Recipe: (Percent, Batch)
Potash feldspar 39.1 39.05 Dolomite 12.9 12.92 Colemanite 5.8 5.79 Magnesium carbonate 2.4 2.36 Zinc oxide 1.1 1.13 Kaolin 9.4 9.42 Flint 29.3 29.33 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt oxide 0.5 0.50 chrome oxide 0.5 0.50 Bentonite 0.3 0.30
Comments:
This has been fired in reduction but I suspect it will work in oxidation. If anybody tries it in oxidation, please let me know the results. I love this stuff as an accent. It has a long firing range, I suspect ^9 - ^11. It's very forgiving, very stiff and should go on just fine as a light cream consistency dipped. Peace and long life....and yes, it's raining but I saw two rainbows yesterday while cleaning porch # 1 with mildicide Emily emily henderson
Recipe: (Percent, Batch)
Feldspar 75.0 75.00 Whiting 15.0 15.00 EPK 5.0 5.00 Flint 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.0 1.00 Chrome oxide 1.5 1.50 Cobalt carbonate 1.0 1.00
Comments:
From Sarah Jaeger.
Recipe: (Percent, Batch)
Potash feldspar 51.0 51.02 Dolomite 23.5 23.47 EPK 21.4 21.43 Whiting 4.1 4.08 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.02 Chrome oxide 1.0 1.02 Bentonite 1.0 1.02
Comments:
(better on porcelain) I make no claims regarding these glazes' reliability or safety. I don't know of their origin. These are in use at Hui No'Eau in Makawao, Maui. sam tomich
Recipe: (Percent, Batch)
K-200 feldspar 45.0 45.00 Whiting 17.0 17.00 Grolleg clay 11.0 11.00 Flint 27.0 27.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00 Bentonite 1.0 1.00
Comments:
Thin=rust, orange-red; thick=black. In salt over white body or slip=smokey jade green. used in Classic Temmoku, excellent. UF Shop glaze.
Recipe: (Percent, Batch)
Custer feldspar 53.0 53.00 EPK 6.0 6.00 Flint 24.0 24.00 Whiting 12.0 12.00 Barium carbonate 2.5 2.50 Zinc oxide 2.5 2.50 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Color is deeper and richer when applied thickly. Color is brighter and more intense over white slip or clay. [NOTE-these notes look like the ones from the Secrest Celadon... and is it really translucent?]
Recipe: (Percent, Batch)
Feldspar 65.4 65.39 Whiting 11.5 11.54 China clay 7.7 7.69 Silica 15.4 15.38 ----- -------- Totals: 100.0 100.00
Also add:
Iron oxide 7.7 7.69
Comments:
this is a very nice cone ten, easy to make this glaze was found written on the side of plastic pail i bought at an auction 31 years ago. as with all mirror blacks the thickness of the glaze, the quality of the reduction, and the care in cooling the kiln will play a dramatic influence on the final product. breaking to rust is the result of thin areas. and if you wish to use this as iron red just apply a thin coat. as most veteran potters will verify.....make 2,000 pots, apply mirror black glaze, and fire the kiln 73 times...you will learn to use it... mel jacobson, minnesota
Recipe: (Percent, Batch)
Cornwall Stone 46.7 46.70 EPK 11.1 11.10 Silica 20.2 20.20 Whiting 14.5 14.50 Red iron oxide 7.5 7.50 ----- -------- Totals: 100.0 100.00
Also add:
Macaloid 0.5 0.50
Comments:
Closest thing to redux temmoku I can find. Works well with Penland Purple overlapped as a "chun". Must be fired to hard ^10 for colour to develop - at 9 it is boring brown. Use 1/4 to 1/2% macaloid as as suspender *How long have you been using this glaze? Over 7 years *Where is it used? My studio *Where did this recipe come from? CM compilation of glazes. Sorry, date unknown, but older than 10 years. *What do you like most about this glaze? Consistency - apply thickly and it stays put. Good for tableware. *Is this glaze reliable? ABSOLUTELY *Does this glaze tend to craze/crawl/pinhole/etc.? Rub any pinholes on dry glaze to avoid pinholing in final product. Wear gloves as this glaze will stain your hands - and your clothing. *How do different firing temperatures/atmospheres affect the glaze? Will fire to ^9 (gets glossy) but the colour is awful! Firing to ^10 at 4 o'clock for best results. *How does the glaze behave on different clay bodies? Have used on 3 different clay bodies with identical results. *What consistency should the glaze be for pouring/dipping? Medium thick *How thickly should the glaze be applied to the pot? Medium thick - if applied thinly, you can get some red flashes - but unless clay is extremely smooth (non-stoneware) the end product is non-functional. *How does this glaze interact with other glazes? Overlapping with Penland opal gives a wonderful "chun" effect in ox. *What is your kiln type and size? PSH CRT 180 - 6.5 cubic ft. *How do you typically fire? I "candle" overnight. 20-24 hours depending on electricity demands. *Do you experience problems with the raw glaze? Rapid settling!! I use .25 - .5% macaloid as a suspender - or it becomes a cement lump. Also, takes a long time to dry. Be patient! *What is your water pH? I use R/O water *GlazeBase recipe* Submitted by: Sam Cuttell - alias the cat lady (scuttell@wwdc.com) Ice Cream Flavor: Mowie Cowie -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
Custer feldspar 56.0 56.00 Silica 20.5 20.50 Whiting 16.0 16.00 Ball clay 7.5 7.50 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.0 8.00 Bentonite 2.2 2.16
Comments:
This is a fluid but not necessarily runny glaze. (Any iron saturate glaze will run if over fired or put on too thick.) I have found it best to fire it in a mild reduction to neutral. And lately I've been turning off the kiln at Cone 9 bending. Thickness (or rather proper thickness) is always important for the desired black. Bentonite is important as this glaze will settle out immediately. Source: Kansas City Art Institute submitted by: Jim Connell e-mail: connellj@winthrop.edu
Recipe: (Percent, Batch)
Potash feldspar 64.7 64.67 Silica 24.9 24.88 Whiting 5.5 5.47 Talc 5.0 4.98 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.0 7.96 Cobalt oxide 2.0 1.99
Comments:
submitted by: Brian Kemp e-mail: KEMPB@AM.NIE.AC.SG (kempb@nievax.nie.ac.sg)
Recipe: (Percent, Batch)
Kona F-4 feldspar 23.6 23.60 Whiting 18.0 18.00 Ball clay 29.2 29.20 Flint 29.2 29.20 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 13.5 13.50
Comments:
Good Luck From my RISD undergrad days....(still don't understand this name) Cone 9-10 R and Salt Jonathan Kaplan, president jonathan@csn.net Ceramic Design Group Ltd./Production Services PO Box 775112 Steamboat Springs CO 80477 Plant Location (please use this address for all UPS shipments) 30800 Moffat Ave Unit 13 Steamboat Springs CO 80487 (970) 879-9139*voice and fax http://www.craftweb.com/org/jkaplan/cdg.shtml http://digitalfire.com/education/articles/kaplan1.htm ------------------------------
Recipe: (Percent, Batch)
Cornwall Stone 28.1 28.05 Silica 50.9 50.92 Whiting 14.0 14.02 Kaolin 7.0 7.01 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 14.9 14.94
Comments:
Frank Martin Art Deparment/Ceranics 92nd street YM-YWHA 1395 Lexington Ave NY, NY. 10128 p0tters2@aol.com
Recipe: (Percent, Batch)
Kona F-4 feldspar 22.7 22.73 Whiting 18.2 18.18 Ball clay 29.5 29.55 Quartz 29.5 29.55 ----- -------- Totals: 100.0 100.01
Also add:
Red iron oxide 13.6 13.64 Bentonite 2.3 2.27
Comments:
Frank Martin Art Deparment/Ceranics 92nd street YM-YWHA 1395 Lexington Ave NY, NY. 10128 p0tters2@aol.com
Recipe: (Percent, Batch)
Kona F-4 feldspar 22.7 22.73 Whiting 18.2 18.18 Ball clay 29.5 29.55 Quartz 29.5 29.55 ----- -------- Totals: 100.0 100.01
Also add:
Red iron oxide 13.6 13.64 Bentonite 2.3 2.27
Comments:
Frank Martin Art Deparment/Ceranics 92nd street YM-YWHA 1395 Lexington Ave NY, NY. 10128 p0tters2@aol.com
Recipe: (Percent, Batch)
Potash feldspar 25.7 25.72 Ball clay 27.9 27.88 Whiting 18.5 18.52 Flint 27.9 27.88 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 11.3 11.32
Comments:
The following Tessha Glaze recipe is from the Feb '96 issue of Ceramics Monthly. (Can be applied to leather hard pots for once firing.) dennis davis
Recipe: (Percent, Batch)
Potash spar 24.7 24.72 Flint 28.1 28.09 Kentucky OM #4 27.0 26.97 Whiting 20.2 20.22 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 12.4 12.36
Comments:
I have the recipe in my glaze notebook. No note to ascribe where I got it however. no other notes....ie not one I have used a lot. (my fav. iron saturate is Ohata Kaki) Ric Swenson, Bennington College, Route 67 -A, Bennington, Vermont 05201-6001 802 442-5401 x 262 vox x 237 fax or dedicated fax 802 442-6164 email: rswenson@bennington.edu
Recipe: (Percent, Batch)
G-200 feldspar 21.0 21.03 Nepheline syenite 21.0 21.03 Kentucky OM #4 4.5 4.53 Gerstley borate 11.8 11.82 Dolomite 7.5 7.53 Talc 14.4 14.44 Silica 19.6 19.61 ----- -------- Totals: 100.0 99.99
Also add:
Cobalt oxide 3.0 3.00
Comments:
Satin glaze. Deep purple where thick. Midnight blue where medium. soft purple with slip. Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Potash feldspar 42.8 42.80 Flint 26.6 26.60 Whiting 22.1 22.10 EPK 8.5 8.50 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Titanium dioxide 3.0 3.00 Black nickel oxide 1.0 1.00
Comments:
I know we have covered pinholing exhaustively, but I am still having a problem with 2 glazes. Is there a way to adjust the recipes to help? I have 2 glazes that are pinholing each on their own, and together. It seems to happen mostly in the electric kiln, but occassionally in the gas reduction firings. Have tried smoothing with a finger before firing, soaking at peak, and going slow midway through the firing. Any other suggestions? Here are the cone 9 glazes, they're on Amherst Z clay. Would Corinne Null Bedford, NH cnull@mv.mv.com
Recipe: (Percent, Batch)
Custer feldspar 44.2 44.20 Bone ash 10.8 10.80 Magnesium carbonate 12.9 12.90 EPK 10.0 10.00 Flint 22.1 22.10 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Red iron oxide 8.0 8.00
Comments:
From Pete Pinnell. Clay Times article on tomato reds May/Jn '08 p23. Apply medium thickness. Cool slowly for best rust color.
Recipe: (Percent, Batch)
Kona F-4 spar 45.0 45.00 Whiting 7.0 7.00 Bone ash 11.0 11.00 Flint 24.0 24.00 Grolleg 7.0 7.00 Magnesium carbonate 6.0 6.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.0 8.00 Bentonite 2.0 2.00
Comments:
From Kansas City. Similar to Oharata Red. Glossy opaque plum to persimmon orange, rust, red. . Glaze Type: Ca Mg Iron Red. Firing type: Reduction. From Val Cushing. VC ed
Recipe: (Percent, Batch)
Potash feldspar 50.0 50.00 Silica 22.7 22.70 Kaolin 9.1 9.10 Dolomite 9.1 9.10 Bone ash 9.1 9.10 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 9.1 9.10 Bentonite 1.8 1.80
Comments:
I have a Tomato Red that I use quite a lot. It has a very good maturing range. From cone 8-10. I trust that all the ingredients are the same in the U.S.A. as in Oz. submitted by: Russell and Lorraine Klopper e-mail: klopper@iinet.net.au
Recipe: (Percent, Batch)
Bone ash 11.6 11.60 Magnesium carbonate 7.1 7.10 Kona F-4 feldspar 48.3 48.30 Georgia kaolin 7.1 7.10 Silica 25.9 25.90 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 7.1 7.10 Bentonite 1.3 1.30
Comments:
Here's a Tomato Red recipe I have that was from Ceramics Monthly about 10 years submitted by: Shelley S. source for original recipe: Ceramics Monthly e-mail: shelleys@dimensional.com
Recipe: (Percent, Batch)
Kona F-4 feldspar 48.2 48.20 Silica 25.9 25.90 EPK 7.1 7.10 Magnesium carbonate 7.1 7.10 Bone ash 11.6 11.60 ----- -------- Totals: 100.0 99.90
Also add:
Red iron oxide 7.1 7.10
Comments:
I took a pottery course at McHenry County College, in Crystal Lake, IL a few years ago. We had a wonderful cone 10, reduction fired Tomato Red glaze as above. This is a very nice rusty, orangey/golden red. Good Luck. submitted by: Kurt Unterschuetz e-mail: schatzi@mc.net , http://www.mc.net/schatzi
Recipe: (Percent, Batch)
Potash feldspar 50.0 50.00 Silica 22.7 22.70 Kaolin 9.1 9.10 Dolomite 9.1 9.10 Bone ash 9.1 9.10 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 9.1 9.10 Bentonite 2.0 2.00
Comments:
I have a Tomato Red that I use quite a lot. It has a very good maturing range. From cone 8-10. I trust that all the ingredients are the same in the U.S.A. as in Oz. submitted by: Russell and Lorraine Klopper e-mail: klopper@iinet.net.au
Recipe: (Percent, Batch)
Bone ash 10.9 10.93 Kona F-4 feldspar 45.4 45.38 Flint 24.4 24.36 Kaolin 6.7 6.72 Magnesium carbonate 5.9 5.88 Whiting 6.7 6.72 ----- -------- Totals: 100.0 99.99
Also add:
Red iron oxide 6.7 6.72
Comments:
I believe that this is the Tomato Red used by my fellow students in Kansas city in the late seventies. louis howard katz Possible Health Hazards: Flint: free silica-wear a NIOSH approved dust mask when handling dry material Louis Katz lkatz@falcon.tamucc.edu * *Texas A&M University Corpus Christi * *6300 Ocean Drive, Art Department * *Corpus Christi, Tx 78412 * *Phone (512) 994-5987
Recipe: (Percent, Batch)
G-200 feldspar 48.7 48.70 Silica 16.1 16.12 EPK 6.7 6.65 Talc 9.2 9.24 Whiting 7.4 7.44 Bone ash 11.8 11.84 ----- -------- Totals: 100.0 99.99
Also add:
Red iron oxide 11.7 11.72
Comments:
Tom Coleman handed out some of his glaze formulas at a FUSION conference in Ottawa a couple of years ago. Included was one for TOMATO IRON RED cone 8-10 in reduction. I have not tried it, but he had examples of it there. A bright orange red, gloss. Ask him about it at NCECA. Liz Willoughby R.R. 1 Grafton. Ontario Canada. K0K 2G0 lizwill@cyberion.ca
Recipe: (Percent, Batch)
Kona F-4 spar 45.0 45.00 Whiting 7.0 7.00 Bone ash 11.0 11.00 Flint 24.0 24.00 Grolleg 7.0 7.00 Magnesium carbonate 6.0 6.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 8.0 8.00 Bentonite 2.0 2.00
Comments:
From Kansas City. Similar to Oharata Red. Glossy opaque plum to persimmon orange, rust, red. . Glaze Type: Ca Mg Iron Red. Firing type: Reduction. From Val Cushing. VC ed
Recipe: (Percent, Batch)
Nepheline syenite 50.0 50.00 Whiting 30.0 30.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Chrome oxide 1.0 1.00
Comments:
Dark semi-matt jade/marble green. Looks like stone. ( I never understood this name) I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
Custer spar 34.4 34.45 Gerstley borate 4.0 4.03 Dolomite 18.1 18.12 Whiting 4.0 4.03 EPK 23.3 23.27 Silica 16.1 16.11 ----- -------- Totals: 100.0 100.01
Also add:
Cobalt carbonate 1.0 1.01 Chrome oxide 0.5 0.50
Comments:
Bulletproof. Great at all temps and thicknesses. Very stable I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
Feldspar 40.0 40.00 Whiting 18.0 18.00 Cornwall Stone 18.0 18.00 Tennessee #1 ball clay 20.0 20.00 Magnesium carbonate 4.0 4.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.0 1.00
Comments:
Add C.M.C. 1 tsp I have had trouble with pinholing over underglaze and slip,too. I fire to ^8 ox. on Sheffield's T3 body. When I use Amaco underglaze or a slip made from the clay body, bisqued to ^06 and then put Translucent Gray-White semi-matte over it, pinholing occurs only over the underglaze or slip. I suspect the problem lies with the gases escaping from the slip and underglaze but I don't know how to deal with this. I have a Paragon kiln with a computer control hoobee but it doesn't have a soak option (if I had only known!). submitted by: Leona Stonebridge Arthen e-mail: leona@arthen.ultranet.com
Recipe: (Percent, Batch)
Potash feldspar 26.6 778.40 Whiting 20.6 603.00 EPK 19.5 570.50 Flint (silica) 32.2 940.80 Bentonite 1.0 28.90 ----- -------- Totals: 100.0 2921.60
Comments:
This is an excellent transparent/clear glaze that is very hard and durable. I have used it over colored slip, with sgraffito into the slip and with oxides and stains brushed over it and the decorations don't move. This glaze can be brought to the VERY edge of the foot without moving. I use it inside of all my functional work and when decorating with colored slips I use it over the whole surface of the pot. It is an excellent glaze that will always perform well especially when you are in a hurry to get things fired. No surprises. Food-safe. *Variations: Can add 1/4 % Copper Carbonate for Light Green in Oxidation ^9-10 firing. *How long have you been using this glaze? Almost 20 years *Where is it used? In my studio *Where did this recipe come from? I got this recipe from Kieth Campbell from Ontario, Canada but believe that it is an Alfred Univ. glaze originally *What do you like most about this glaze? There are no surprises and I can count on it every time. Its food safe. *Is this glaze reliable? Very *Does this glaze tend to craze/crawl/pinhole/etc.? Crazes if applied TOO THICK. *How do different firing temperatures/atmospheres affect the glaze? Electric/Oxidation or Gas fired/Reduction or neutral fire are all equally as good. *How does the glaze behave on different clay bodies? On porcelain and white stoneware it is clear white. On buff and or red bodies it goes somewhat grey because of the iron in the clays. Very pleasent on all clays. I have tested and used on all the above clays. *What consistency should the glaze be for pouring/dipping? The consistancy of my glazes is like homo milk. The normal consistancy. I dip to the count of 5 - 10. *How thickly should the glaze be applied to the pot? Normal. I spray this glaze as well to 1/16th of an inch or better. *How does this glaze interact with other glazes? I like it the way it is for my work. Test your glazes and see what happens. I have sprayed other glazes on rims etc. and all worked fine. *What is your kiln type and size? 30 cu.ft. downdraft gas kiln. *How do you typically fire? Heating...pilots (4) on over night or at least a 9 hour period. Burners (4) on low over night or till cone 07 is down. Turn up the burners to 1/2 way mid. reduce kiln for 30 to 45 mins. depending on the weather. Cut the reduction (open dampers to almost open and a light reduction till cone 10 falls. Clear kiln, shut off and seal. Slow 36 hour cool before cracking the door and work comes out in about 48 hours. *Do you experience problems with the raw glaze? NO....this glaze can be stirred easily even after 8 weeks of non use and stays stirred for long periods of time while glazing. I make a large green garbage pail of my well used glazes and they last me for a yr. or more. No smells etc. *What is your water pH? City water. *Any other comments? Try this glaze...it will be a main stay in your studio. ;>}}} *GlazeBase recipe* Submitted by: Peggy Heer / Heer Pottery (p4337@connect.ab.ca) Ice Cream Flavor: Chocolate -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
Custer spar 34.5 34.50 Gerstley borate 4.0 4.00 Dolomite 18.1 18.10 Whiting 4.0 4.00 EPK 23.3 23.30 Silica 16.1 16.10 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Chrome oxide 0.5 0.50
Comments:
Bulletproof. Great at all temps and thicknesses. Very stable I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
Whiting 19.0 19.03 Flint 31.9 31.94 EPK 19.4 19.42 G-200 feldspar 26.7 26.70 Barnard slip 2.9 2.91 ----- -------- Totals: 100.0 100.00
Comments:
from Alfred/ Jim Chalkley Couldn't detect any light. blue but I remember it used to be beautiful on carved porcelain. (Jim, are you out there?) Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. tracy wilsonTracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Cornwall Stone 46.0 46.00 Whiting 34.0 34.00 EPK 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 2.0 2.00
Comments:
Webs and streaks nicely.VC ed Variations -- Copper 1: + tin oxide 4% + copper carb 4%. Speckled green to mottled black.
Recipe: (Percent, Batch)
Albany Slip 40.0 40.00 Nepheline Sye 20.0 20.00 Wollastonite 10.0 10.00 Talc 10.0 10.00 Dolomite 10.0 10.00 Barium carbonate 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 2.0 2.00 Manganese dioxide 2.0 2.00 Copper carbonate 2.0 2.00 Red iron oxide 2.0 2.00
Comments:
Good for sculpture, a black surface. Glaze Type: Ca Mg SlipGlaze . Opacity: Opaque. Firing type: Ox or Red From Val Cushing. VC ed
Recipe: (Percent, Batch)
Nepheline syenite 27.0 27.00 Lithium carbonate 18.0 18.00 Gerstley borate 5.0 5.00 Wollastonite 8.0 8.00 Talc 14.0 14.00 EPK 8.0 8.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Comments:
Try other colors. Good in both oxidation and reduction. Variations -- Use combination of Iron Oxide 2 and Rutile 4 Use only Copper Carbonate 3 Use only Chrome Oxide 0.5
Recipe: (Percent, Batch)
Kona F-4 Feldspar 50.0 50.00 Flint 14.0 14.00 EPK 10.0 10.00 Whiting 16.0 16.00 Talc 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
Rutile (8%) gives orange straw color with white specks. Mason's Black (0.25%) gives a medium dark grey blue with white specks. Glaze Type: Ca Mg. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer spar 35.0 35.00 Gerstley borate 20.0 20.00 Whiting 15.0 15.00 EPK 10.0 10.00 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Dark plum thin, to black thick Glaze Type: Ca B IronSaturate. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Nepheline syenite 24.0 24.00 Kona F-4 Spar 24.0 24.00 Zinc oxide 20.0 20.00 Whiting 10.0 10.00 Flint 20.0 20.00 EPK 2.0 2.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00 Bentonite 1.0 1.00
Comments:
Good celadon with 1% Red Iron Oxide. Green. Glaze Type: Zn Ca IronSaturate. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer spar 40.0 40.00 Cornwall Stone 20.0 20.00 Whiting 10.0 10.00 Flint 20.0 20.00 Gerstley borate 5.0 5.00 EPK 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Good celadon with 1% Red Iron Oxide. Green. Glaze Type: Ca K IronSaturate. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
K-200 Spar 50.0 50.00 Whiting 12.0 12.00 Zinc oxide 2.0 2.00 EPK 10.0 10.00 Flint 26.0 26.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Bluish celadon with 1% Red Iron Oxide. Glaze Type: Ca K IronSaturate. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
K-200 Spar 40.0 40.00 Flint 30.0 30.00 Whiting 20.0 20.00 EPK 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Rust to plum to black. 4,3,2,1, again. Leach Celadon with 1% Iron Oxide. Glaze Type: Ca IronSaturate 4-3-2-1. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer feldspar 50.0 50.00 Gerstley borate 15.0 15.00 Whiting 10.0 10.00 Flint 20.0 20.00 EPK 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Brown to plum to black. Highly textured, mottled color because of the Boron. Glaze Type: Ca K B IronSaturate. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
K-200 Feldspar 80.0 80.00 Whiting 10.0 10.00 EPK 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Can be orangish rust where thin, also rutile blue with 4% rutile and 1% iron. Glaze Type: Ca K IronSaturate Feldspa. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer feldspar 30.0 30.00 Kona F-4 Feldspar 30.0 30.00 Wollastonite 5.0 5.00 Gerstley borate 5.0 5.00 Whiting 10.0 10.00 EPK 5.0 5.00 Flint 15.0 15.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00 Bentonite 2.0 2.00
Comments:
Can be orangish rust where thin, also rutile blue with 4% rutile and 1% iron. Glaze Type: Ca IronSaturate. Opacity: Opaque. Firing type: Reduction From Val Cushing.VC ed
Recipe: (Percent, Batch)
Cornwall Stone 42.0 42.00 Whiting 16.0 16.00 Gerstley borate 2.0 2.00 Zinc oxide 2.0 2.00 Flint 26.0 26.00 EPK 12.0 12.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Glaze Type: Ca IronSaturate. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer feldspar 40.0 40.00 Whiting 20.0 20.00 EPK 10.0 10.00 Flint 30.0 30.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
Thin = plum to thick = black. Iron saturate glaze. VC ed
Recipe: (Percent, Batch)
K-200 Feldspar 51.0 51.00 Soda ash 4.0 4.00 Gerstley borate 6.0 6.00 Whiting 13.0 13.00 Barium carbonate 4.0 4.00 Lithium carbonate 1.0 1.00 Flint 21.0 21.00 ----- -------- Totals: 100.0 100.00
Also add:
Macaloid 2.0 2.00 Titanium dioxide 2.0 2.00
Comments:
TESTED SAFE from Ba release. Au Sp. '92 ****Glossy w/ depth. 1% CuCO3 = seafoam; 5% CuCO3 = aqua w/ rust where thin. 8% Fe2O3 = brandy thin, sea green thick. Definitely RUNNY. 'What makes this glaze so active is soda ash, GB, Li; the only non-flux is flint. And low Alumina - there's nothing stabilizing the glaze. Almost a C/04 glaze - ref. to limit formulas'- VC. Preferred Ba to Sr version w/ all colorants. Good in SODA. VC ed
Recipe: (Percent, Batch)
K-200 Spar 50.0 50.00 Barium carbonate 30.0 30.00 Kaolin 10.0 10.00 Whiting 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
1% cobalt=strong blue. 2% iron = yellowish green; 0.5% chrome oxide =yellow green; 3% copper = speckled; 2% iron+4% rutile=orangish brown. Glaze Type: Ca Ba AlMatt. Opacity: . Firing type: Ox or Red From Val Cushing. VC ed
Recipe: (Percent, Batch)
Kona F-4 Spar 30.0 30.00 Dolomite 20.0 20.00 Calcined kaolin 10.0 10.00 Barium carbonate 15.0 15.00 Flint 10.0 10.00 EPK 15.0 15.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Granular Manganese 0.5 0.50
Comments:
Thin = dk. brown, almost black; med. = greenish/bluish; thick = orchid, lavendar Glaze Type: Na Ba Mg AlMatt. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer feldspar 28.3 28.26 Dolomite 28.3 28.26 EPK 26.1 26.09 Whiting 8.7 8.70 Flint 8.7 8.70 ----- -------- Totals: 100.0 100.01
Also add:
Tin oxide 8.7 8.70
Comments:
Glaze Type: Ca Mg AlMatt. Opacity: Opaque. Firing type: Ox or Red From Val Cushing. VC ed
Recipe: (Percent, Batch)
Grolleg 30.0 30.00 Whiting 30.0 30.00 Barium carbonate 30.0 30.00 Flint 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 4.0 4.00
Comments:
With 4% Rutile gives dusty rose, thick is dark purple lavender. Webs and streaks like wood ash glaze. Glaze Type: Ca Ba AlMatt. Opacity: Transparent. Firing type: Ox or Red From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer spar 49.0 49.02 Whiting 19.6 19.61 Barium carbonate 15.7 15.69 EPK 13.7 13.73 Bone ash 2.0 1.96 ----- -------- Totals: 100.0 100.01
Also add:
Yellow Ochre 4.9 4.90 Rutile 2.9 2.94
Comments:
Color is rust brown to yellow tan to olive moss green. This is VC Red Yellow Matt revised. High calicum and high to medium barium makes the usual barium colors more pale and less intense. Glaze Type: Ca Ba AlMatt. Opacity: Opaque . Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Custer feldspar 50.0 50.00 Barium carbonate 15.0 15.00 Whiting 20.0 20.00 EPK 15.0 15.00 ----- -------- Totals: 100.0 100.00
Also add:
Yellow ochre 5.0 5.00 Rutile 2.0 2.00
Comments:
Soft rust brown breaks to soft straw yellow. Green where thick. Good over texture.
Recipe: (Percent, Batch)
Custer spar 36.0 36.00 Gerstley borate 4.0 4.00 Dolomite 18.0 18.00 Whiting 4.0 4.00 EPK 22.0 22.00 Flint 16.0 16.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Chrome Oxide 0.3 0.25 Manganese dioxide 0.5 0.50
Comments:
Thin=dk. greyblue; med=deep rich blue; thick=brighter blue,not as good. At Cone 9.5 goes glossy and raw-ugly blue. See RMB Rev. for c/10. Glaze Type: Ca Mg AlMatt. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed.
Recipe: (Percent, Batch)
Custer feldspar 39.0 39.00 Gerstley borate 2.0 2.00 Dolomite 21.0 21.00 Whiting 2.0 2.00 EPK 25.0 25.00 Flint 11.0 11.00 ----- -------- Totals: 100.0 100.00
Also add:
Cobalt carbonate 1.0 1.00 Chrome Oxide 0.3 0.25 Manganese dioxide 0.5 0.50
Comments:
Original glaze is temperature finicky & goes glossy at C/10. Rev. stays matt. Thin=grey blue; med=deep rich blue; thick=brighter blue. Glaze Type CaMgAl Matt. Opacity:opaque. Firing type: redtn. From Val Cushing. VC ed
Recipe: (Percent, Batch)
Ball clay 30.0 30.00 Whiting 30.0 30.00 Barium carbonate 15.0 15.00 Dolomite 15.0 15.00 Flint 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 4.0 4.00
Comments:
Do not apply right to the foot. It will run. This is a high calcium, fake ash glaze. Thin=rustybrown;med.=yellow green;thick=moss green pools Glaze Type: Ca FakeAsh . Opacity: Semi-opq. Firing type: Redtn. From Val Cushing.VC ed
Recipe: (Percent, Batch)
K-200 Feldspar 46.0 46.00 Gerstley borate 12.0 12.00 Dolomite 8.0 8.00 Zinc oxide 2.0 2.00 Whiting 2.0 2.00 EPK 2.0 2.00 Flint 28.0 28.00 ----- -------- Totals: 100.0 100.00
Comments:
Good for a run of mottled and textured colors. Variations -- For glossy opaque white add 12% Zircopax.
Recipe: (Percent, Batch)
K-200 Feldspar 40.0 40.00 Whiting 18.0 18.00 Flint 28.0 28.00 EPK 10.0 10.00 Zinc oxide 2.0 2.00 Wollastonite 2.0 2.00 ----- -------- Totals: 100.0 100.00
Comments:
Variations -- 12% Zircopax will make a strong glossy opaque white 2% iron = celadon.
Recipe: (Percent, Batch)
Albany slip 30.0 30.00 Cornwall Stone 30.0 30.00 Barium carbonate 30.0 30.00 EPK 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 4.0 4.00
Comments:
Almost transparent matt w/ no colorants.This VC glaze given to Sarah Coote became Coote Celadon. She revised using Kona F-4 for Albany, etc. Glaze Type: Ba MidRoad SlipGlaze. Opacity: Opaque. Firing type: Ox or Red From Val Cushing. VC ed
Recipe: (Percent, Batch)
K-200 feldspar 40.0 40.00 Whiting 18.0 18.00 Flint 28.0 28.00 EPK 10.0 10.00 Zinc oxide 2.0 2.00 Wollastonite 2.0 2.00 ----- -------- Totals: 100.0 100.00
Comments:
Variations -- 12% Zircopax will make a strong glossy opaque white 2% iron = celadon.
Recipe: (Percent, Batch)
Custer spar 56.8 56.80 Dolomite 13.6 13.60 Whiting 10.6 10.60 Zinc oxide 3.0 3.00 EPK 16.0 16.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 2.0 2.00 Copper carbonate 2.0 2.00 Cobalt carbonate 3.0 3.00
Comments:
Very interesting "antique" green with speckles darker on dark burning clays and lighter on light burning clays (Vérité de Monsieur de la Palice). Hum! *How long have you been using this glaze? 3years *Where is it used? Studio *Where did this recipe come from? From our own experimentation using the base recipe of our glaze named Mag as a starting point. *What do you like most about this glaze? The color is very appealing and conservative-like. The surface is semi-gloss with a few speckles and nice to the touch; a very smooth surface. *Is this glaze reliable? Yes *Does this glaze tend to craze/crawl/pinhole/etc.? No surface flaws. *How do different firing temperatures/atmospheres affect the glaze? Not tested. *How does the glaze behave on different clay bodies? Well. *What consistency should the glaze be for pouring/dipping? Medium *How thickly should the glaze be applied to the pot? Medium *How does this glaze interact with other glazes? Not tested *What is your kiln type and size? Downdraft, propane and atmospheric,60 cubic feet. *How do you typically fire? Oxidation until clay reduction at cone 08, then a light reduction increasing with time until the final and total reduction of 20 minutes followed by a 20 minute period of reoxidation *Do you experience problems with the raw glaze? No *What is your water pH? 7.2 *Any other comments? I really like that glaze. *GlazeBase recipe* Submitted by: Edouard Bastarache (edouardb@sorel-tracy.qc.ca) Ice Cream Flavor: Maple polkadot vanilla -------------------------------------------------------------------- ----
Recipe: (Percent, Batch)
Barnard clay 72.2 72.22 Custer feldspar 16.7 16.67 Whiting 11.1 11.11 ----- -------- Totals: 100.0 100.00
Comments:
kiln type: electric Cone 9 and 6, clay: Plainsman M460 and H430, electric fire, applied to bisque. ALberta slip: At cone 9 Alberta by itself it makes a rich chocolate brown. It's too refractory to work at cone 6 by itself, I was told, so I didn't test it.I added 30% Gerstley borate which was the wrong thing to do, as Alberta is very glassy to begin with, but I had intended to test at cone 6 as well so I tested for both 6 and 9. I didn't really like the result at cone 6 with the gerstley, as it was a frosty transparent olive green (at cone 9 it was a RUNNY transparent olive green. Adding Manganese or cobalt to the Alberta slip would probably give a really nice black. What I left out in making this one was Gerstley 10 (Rob uses Colemanite), but what I ended up with was a stony black with very tiny brown specks. Tends to crawl if too thick. Rob's recipe was great too, and that one SHOULD be thick, he says. His recipe also works on greenware, he said, but I haven't tried it yet. submitted by: Vickie Sproule e-mail: jsproule@mars.ark.com
Recipe: (Percent, Batch)
Fireclay 31.3 31.30 Custer spar 25.9 25.90 Dolomite 19.0 19.00 Volcanic ash 10.3 10.30 Gerstley borate 5.5 5.50 Flint 4.9 4.90 Bone ash 3.1 3.10 ----- -------- Totals: 100.0 100.00
Also add:
Opax 3.4 3.40 Bentonite 1.0 1.00
Comments:
Recipe: (Percent, Batch)
EPK 27.2 27.20 Custer feldspar 24.4 24.40 Dolomite 19.7 19.70 Whiting 1.4 1.40 Flint 14.3 14.30 Frit 3134 12.3 12.30 Rutile 0.7 0.70 ----- -------- Totals: 100.0 100.00
Also add:
Opax 3.5 3.50 Bentonite 1.0 1.00
Comments:
Recipe: (Percent, Batch)
Alumina hydrate 13.5 5.00 Fire clay 43.2 16.00 sand 43.2 16.00 ----- -------- Totals: 100.0 37.00
Comments:
Recipe: (Percent, Batch)
Talc theoretical 22.2 10.00 Redart 33.3 15.00 Kaolin 44.4 20.00 ----- -------- Totals: 100.0 45.00
Also add:
Cobalt carbonate 44.4 20.00 Tin oxide 44.4 20.00 Manganese dioxide 22.2 10.00 Red iron oxide 11.1 5.00
Comments:
From ClayArt from Michael Cardew's "Pioneer Pottery". This is not a glaze. It is a pigment for painting over a glaze. It would be dry and unmelted if used as a glaze. I use it at cone 10, but I imagine it would be good to use at cone 6, and probably even a few cones lower. The glaze it is painted over, of course, determines how it turns out to a great degree. David Hendley david@farmpots.com http://www.farmpots.com
Recipe: (Percent, Batch)
Yellow ochre 33.3 1.00 Rutile 33.3 1.00 Red iron oxide 33.3 1.00 ----- -------- Totals: 100.0 3.00
Comments:
From Clay Times May/Jn 08. Bill Van Gilder. Parts by teaspoons, add 1/2 cup sieved glaze that you're working on. Stir. Thin w/water and brush on.
Recipe: (Percent, Batch)
Iron oxide 50.0 50.00 Rutile 25.0 25.00 Gerstley borate 25.0 25.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
Iron oxide 50.0 50.00 Rutile 25.0 25.00 Gerstley borate 25.0 25.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
G-200 feldspar 39.0 39.00 Dolomite 7.0 7.00 Gerstley borate 12.0 12.00 Talc 15.0 15.00 EPK 4.0 4.00 Flint 23.0 23.00 ----- -------- Totals: 100.0 100.00
Also add:
Rutile 4.0 4.00 Cobalt carbonate 0.5 0.50
Comments:
from Bonnie Terry. Satin glaze. solid brown where thin to medium. Mottled breaking blues browns and gold. Well I finally got around to typing this thing up...^9-10 Blues Thank you one and all for all the donated recipes. I only tested 31 out of almost 100 I received. I'll continue testing and reporting as the winter DRAGS on. All the glazes were tested on #900 Miller clay which is a toasty ^10 stoneware. One side of the test tile was brushed with a thick coating of Cynthia Bringle's wet/dry white slip. Each glaze was dipped in three thicknesses on a heavily textured tile. All tiles were fired to a (hard)^9 (10 tipping)reduction firing. 1 hr. Body reduction at ^08 and 1 hr. glaze reduction at ^9 then a quick reox. before shutdown. Any time potash or Custer spar is called for, I used G-200. All ball clay is OM-4 . Many glazes I substituted 75% of the amount of Barium with Strontium. All kaolin is EPK. Remember... glazes don't travel well. Your results will probably be TOTALLY different. Please test before use. Tracy Wilson Saltbox Pottery 4 Shaw Rd. Woolwich, ME 04579 phone: 207-443-5586 fax: 207-442-8922 email: saltbox@ime.net web: http://www.ime.net/~dwilson/
Recipe: (Percent, Batch)
Custer feldspar 38.3 38.32 Gerstley borate 15.9 15.89 Dolomite 6.5 6.54 Talc 15.9 15.89 Ball clay 4.7 4.67 Flint 18.7 18.69 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 1.4 1.40 Zircopax 4.7 4.67
Comments:
(May use G-200 instead of Custer.) --- for lavender add 1 cobalt oxide --- to breakup surface a bit add 2 Lithium carbonate -- Bulletproof. Smooth semimatt. White is good over colored slips. Lavender is great, ranges from pinkish to almost blue, popular. All temps and thicknesses. Good in reduction. I use Dave's porcelain from Laguna. Dean McRaineon the north shore of Kauai
Recipe: (Percent, Batch)
Dolomite 24.0 24.00 Nepheline syenite 71.0 71.00 Ball clay 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.0 3.00 Tin oxide 9.5 9.50
Comments:
Firing: reduction or oxidation. A versatile glaze, changes like a chameleon over different bodies, and works well with colorants. submitted by: Bill Buckner e-mail: couwbb@gsusgi2.gsu.edu Matt Long says pink to grey in soda.
Recipe: (Percent, Batch)
Flint 54.7 54.60 Whiting 18.2 18.20 EPK 14.6 14.60 Custer feldspar 6.3 6.30 Spodumene 4.2 4.20 Magnesium carbonate 1.9 1.90 ----- -------- Totals: 100.0 99.80
Also add:
Zircopax 12.0 12.00
Comments:
Recipe: (Percent, Batch)
Custer feldspar 32.1 32.10 Silica 21.4 21.40 EPK 10.7 10.70 Gerstley borate 17.9 17.90 Whiting 8.9 8.90 Dolomite 8.9 8.90 ----- -------- Totals: 100.0 99.90
Also add:
Zircopax 8.9 8.90
Comments:
Recipe: (Percent, Batch)
Silica 49.7 49.70 Whiting 15.9 15.90 Magnesium carbonate 2.0 2.00 EPK 9.1 9.10 Custer feldspar 19.1 19.10 Spodumene 4.3 4.30 ----- -------- Totals: 100.0 100.10
Comments:
Kevin Chancey's white. Original was high in Ca low in KNaO. Revised for better melt.
Recipe: (Percent, Batch)
Dolomite 27.0 27.00 Spodumene 20.0 20.00 Potash feldspar 27.0 27.00 EPK 16.0 16.00 Flint 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 5.0 5.00 Bentonite 2.0 2.00
Comments:
These are in use at Hui No'Eau in Makawao, Maui. Sam Tomich
Recipe: (Percent, Batch)
Nepheline syenite 20.0 20.00 F-4 spar 20.0 20.00 Dolomite 15.0 15.00 Talc 15.0 15.00 Ball clay 10.0 10.00 Silica 20.0 20.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax Plus 9.0 9.00
Comments:
Clay Times p. 19 Mar/Apr 2005. Lush, velvety. Good liner in soda/salt.
Recipe: (Percent, Batch)
Cornwall Stone 73.0 73.00 Whiting 9.5 9.50 Talc 5.5 5.50 EPK 10.5 10.50 Bone ash 1.5 1.50 ----- -------- Totals: 100.0 100.00
Comments:
From Clay Times Nov/Dec. 05 p. 56.
Recipe: (Percent, Batch)
Cornwall Stone 73.0 73.00 Whiting 9.5 9.50 Talc 5.5 5.50 EPK 10.5 10.50 Bone ash 1.5 1.50 ----- -------- Totals: 100.0 100.00
Comments:
From Clay Times Nov/Dec. 05 p. 56.
Recipe: (Percent, Batch)
Custer feldspar 40.0 40.00 Nepheline syenite 20.0 20.00 Dolomite 30.0 30.00 Kaolin 5.0 5.00 Silica 5.0 5.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 3.0 3.00
Comments:
Wood, runs.
Recipe: (Percent, Batch)
g22 35.0 35.00 EPK 25.0 25.00 Dolomite 20.0 20.00 Whiting 5.0 5.00 Flint 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
Recipe: (Percent, Batch)
G-200 feldspar 38.3 36.00 Ball clay 28.7 27.00 Whiting 27.7 26.00 Flint 5.3 5.00 ----- -------- Totals: 100.0 94.00
Also add:
Zircopax 6.4 6.00
Comments:
Satin matte in reduction, glossy in soda. From Matt Long. Variations -- lime green + .5% chrome oxide
Recipe: (Percent, Batch)
Feldspar 40.0 40.00 Silica 30.0 30.00 Whiting 20.0 20.00 Kaolin 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 10.0 10.00 Bentonite 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Feldspar 40.0 40.00 Silica 30.0 30.00 Whiting 20.0 20.00 Kaolin 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 10.0 10.00 Bentonite 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Custer feldspar 31.7 31.73 Barium carbonate 15.4 15.38 Whiting 12.5 12.50 Kaolin 11.5 11.54 Flint 24.0 24.04 Zinc oxide 4.8 4.81 ----- -------- Totals: 100.0 100.00
Also add:
Ultrox 7.7 7.69
Comments:
I've tried other opacifiers, all seem to be the same chemically but I've always liked what Ultrox did on this glaze. (There's that ingredient again, I haven't tried the .75 Strontium Carb actor but don't think it would make much difference, if you try it I'd like to know the results) The following glaze meets all your specs except the one about crazing. It's a good glaze that I formulated in my Ceramics I class at University of Central Oklahoma way back there. It is very dependable, doesn't run, you can use a brush over it or under it (with a bit of understandable muting), colors stay in place, it's glossy, I use it in reduction but in oxidation it loses a bit of character due to the really white look, You can use it as a base for wax resist with glazes or oxides over. It's the only glaze I've used continually for the past 30 years and on many different bodies. I like it and like what it does. If you try it I hope that you like it too! Enjoy>>>>>>>>>>> PS...Take Rhodes 32, color it with 1% cobalt oxide and 4% red iron, apply it over this glaze and get a really neat semi-mat blue. The white sort of bubbles through the blue and it's pretty. I guess by now you maybe think I like it....OK I DO these are Bob Hanlin bhanlin@ionet.net Oklahoma City, OK
Recipe: (Percent, Batch)
Custer feldspar 48.3 48.30 EPK 25.6 25.60 Dolomite 22.7 22.70 Whiting 3.5 3.50 ----- -------- Totals: 100.0 100.10
Comments:
High alumina matt. Essentially Rhodes #32 from "Clay and Glazes". Can pick up pinkness during firing. Very flat, soft matte white. Nice on porcelain. From HyperGlaze.
Recipe: (Percent, Batch)
Frit 3134 7.5 7.50 Spodumene 22.0 22.00 F-4 spar 11.0 11.00 Wollastonite 8.5 8.50 Talc 21.0 21.00 EPK 9.0 9.00 Silica 21.0 21.00 ----- -------- Totals: 100.0 100.00
Comments:
Clay Times p.19 Mar/Apr 2005. Pete Pinnell's column. At cone 9 glaze is satin matt, begins to variegate at cone 10, breaking between gloss and matte. Above cone 10, moves a bit where thick and get small snow crystals in gloss.
Recipe: (Percent, Batch)
G-200 feldspar 40.0 40.00 Flint 30.0 30.00 Whiting 20.0 20.00 EPK 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Superpax 8.0 8.00 Tin oxide 2.0 2.00
Comments:
Recipe: (Percent, Batch)
Custer feldspar 52.3 53.50 EPK 21.0 21.50 Dolomite 20.1 20.50 Whiting 4.4 4.50 Magnesium carbonate 2.2 2.20 ----- -------- Totals: 100.0 102.20
Also add:
Zircopax 8.3 8.50
Comments:
from Sam Chung.
Recipe: (Percent, Batch)
Custer feldspar 25.0 25.00 Kona F-4 feldspar 25.0 25.00 Dolomite 20.0 20.00 Whiting 5.0 5.00 Calcined kaolin 15.0 15.00 EPK 10.0 10.00 ----- -------- Totals: 100.0 100.00
Comments:
Rich dark purple= 0.5% Cobalt. Try Ilmenite 2% &Rutile 2%. Base is lovely with body coming through. Over dark clay is beautiful. This appears to be the original Mamo White Matt Glaze. Glaze Type: Ca Mg AlMatt. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
Feldspar 41.2 41.18 Flint 29.4 29.41 Calcium carbonate 12.9 12.94 Kaolin 16.5 16.47 ----- -------- Totals: 100.0 100.00
Also add:
Manganese carbonate 17.7 17.65
Comments:
This is one of Nuburo's Hope this gets you into some more testing. ...Peggy PEGGY HEER email: p4337@freenet.edmonton.ab.ca 9702 76 AVENUE phone: 433-0290 EDMONTON, AB. CANADA T6E 1K3
Recipe: (Percent, Batch)
Custer feldspar 40.0 40.00 Flint 30.0 30.00 Whiting 20.0 20.00 EPK 10.0 10.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 12.0 12.00
Comments:
A good liner. Almost identical to Leach White Opaque, St. John's White, etc.
Recipe: (Percent, Batch)
Frit 3134 7.0 7.00 Spodumene 15.0 15.00 Nepheline syenite 10.0 10.00 Bone ash 11.0 11.00 Talc 20.0 20.00 EPK 13.0 13.00 Silica 24.0 24.00 ----- -------- Totals: 100.0 100.00
Comments:
From Pete Pinnell, Clay Times Mar/Apr 2005 p. 21. The phosphorus contributes a number of qualifies to the glaze. It is a glass-former (like the silica), but the phosphorus and silica don't like to mix together (sort of like oil and water). This means that in the firing, the phosphorus tends to separate out and form a cloudy, slightly opalescent milkiness that I find very interesting. It also has a strong tendency to re-oxidize colorants in a glaze, which can result in unusual, vivid colors that have the richness of reduction firing, combined with the intensity of oxidation colors. A side effect of the phosphorus is that the glaze now resists going matte. It will if pushed—that is, if the cooling is slow enough, or if the piece is refired in a bisque kiln to allow enough time for the matting crystals to grow. Otherwise, it is a glossy glaze. The next step (after coming up with the base glaze) was to try out all the common glaze colorants and see what they did in this glaze. The results are fascinating, and many are beautiful. I'm currently in the process of developing more complex colors involving multiple oxides, and I'll pass those along in a future column. If you've ever mixed a tomato red glaze, you'll notice that it always includes a source of magnesium (such as talc or dolomite) and either natural or synthetic bone ash (a source of phosphorus). Together with iron and the other components, these create iron crystals, and push them into an oxidized state. As I suspected it would, Pete's CIA produces a bright tomato red with 7 or 8% red iron oxide. As the amount of iron increases to 10 or 11%, the glaze becomes quite crystalline, but just a bit more brown. The red can be made brighter by refiring it (after the glaze firing) in a bisque firing, or in any low-fire oxidation firing.2 Manganese dioxide makes a beautiful yellow (really!) in small percentages, becoming a creamy red-amber at higher percentages. Copper carbonate, which normally wants to turn a pink or red color in reduction, instead produces light blue-green to emerald green. It works from 1 to 9%. Titanium dioxide or ruffle produce very nice breaking and mottling, working best at 4 and 5%. The effect shows up best on stoneware, but also works well on porcelain with the addition of a small amount of another oxide (iron or copper, for instance) in addition to the titania. Tin oxide produces white at smaller percent-ages, which begins to break rust on edges (even on porcelain) as it nears 10%, with very pronounced cream and orange colors pro- duced on stoneware at 10% and 12%. Like the iron colors I mentioned above, it will become more orange when refired in a bisque or other low-fire oxidation firing. Frankly, I thought the results from cobalt and chrome were very boring, but that might be my taste in colors. Cobalt produced pasty, pastel blues. Chrome was nice in very tiny amounts—0.3% made a nice, very light blue-green, but larger amounts produced dull greenish browns. Please keep in mind that this is a new glaze, and I don't have extensive experience with it. I've used it (in several color variations) in a half dozen or so firings, and it is very promising, but I have yet to work out all the bugs of application and firing.
Recipe: (Percent, Batch)
Kona F-4 feldspar 51.0 51.00 Dolomite 15.6 15.60 Magnesium carbonate 5.7 5.70 EPK 17.1 17.10 Silica 10.6 10.60 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 10.0 10.00
Comments:
UF shop glaze. Forms eutectics frequently and if so is runny or crawls. Crystalle matt surface. NOT good for laser decal re-firing: moves, bubbles at lower temps.l
Recipe: (Percent, Batch)
Plastic vitrox 50.0 50.00 Colemanite 50.0 50.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 15.0 15.00
Comments:
a friend of mine used only this glaze in a lamp factory for years and fired to cone 10. bob chance
Recipe: (Percent, Batch)
Custer feldspar 56.0 56.00 Barium carbonate 2.0 2.00 Dolomite 8.0 8.00 Whiting 10.0 10.00 EPK 6.0 6.00 Zinc oxide 4.0 4.00 Petalite 3.0 3.00 Flint 11.0 11.00 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 6.0 6.00
Comments:
This glaze comes from Kansas City. Orielly, there with Barry Bartlett, Arnie Zimmerman, is now a studio potter. TD
Recipe: (Percent, Batch)
Custer feldspar 43.0 43.00 Gerstley borate 12.0 12.00 Dolomite 7.0 7.00 Talc 14.0 14.00 Kaolin 5.0 5.00 Flint 19.0 19.00 ----- -------- Totals: 100.0 100.00
Comments:
From Margaret Bohls. Smooth consistent white satin matte. Best over white clay. Greyer over darker stoneware. Shows drips and overlaps. Must be dipped.
Recipe: (Percent, Batch)
Nepheline syenite 20.9 20.30 Talc 19.6 19.10 Wollastonite 2.7 2.60 Kaolin - theoretical 12.5 12.20 Silica 23.5 22.90 Frit 3134 20.8 20.20 ----- -------- Totals: 100.0 97.30
Comments:
From Margaret Bohls. Fired to cone 9 electric. Smooth consistent satin matt white. Best over white clay. Greyer over darker stoneware. Shows drips and overlaps. Must be dipped.
Recipe: (Percent, Batch)
Cornwall Stone 84.2 84.20 Whiting 15.8 15.80 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 5.3 5.30
Comments:
originally called for Cornish stone. A very hard glaze on Porcelain so should do well on stoneware Strong oxide response..especially cobalt. PEGGY HEER email: p4337@freenet.edmonton.ab.ca 9702 76 AVENUE phone: 433-0290 EDMONTON, AB. CANADA T6E 1K3
Recipe: (Percent, Batch)
Kona F-4 feldspar 56.0 56.00 Flint 21.0 21.00 Whiting 15.0 15.00 Kentucky OM #4 8.0 8.00 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 1.1 1.10 Bentonite 2.2 2.20 Zircopax 8.8 8.79
Comments:
From Peter Beasecker.
Recipe: (Percent, Batch)
Custer feldspar 71.4 71.40 Kentucky OM #4 14.3 14.30 Talc theoretical 9.5 9.50 Colemanite 4.8 4.80 ----- -------- Totals: 100.0 100.00
Comments:
Apply thickly. From Richard Burkett
Recipe: (Percent, Batch)
Whiting 18.2 18.20 Custer feldspar 50.1 50.20 EPK 12.6 12.60 Flint 19.1 19.10 ----- -------- Totals: 100.0 100.10
Also add:
Zircopax 25.5 25.50
Comments:
This is the Sycamore White glaze from Cermanic's Monthly several years ago. Roger roger s coates
Recipe: (Percent, Batch)
Potash feldspar 34.3 34.31 Dolomite 19.3 19.31 Whiting 2.6 2.55 EPK 22.3 22.25 Flint 19.6 19.61 Bentonite 2.0 1.96 ----- -------- Totals: 100.0 99.99
Comments:
Try Temple white, the work horse of all glazes. It doesn't mark at all. It fires semi matt to semi gloss, cone 10 soft to down Marking is something customers shouldn't have to deal with, especially at stoneware temps. And this glaze DOESN'T craze on my clay body:t-3 from Sheffield. I have pie plates I've used for over 10 years without one craze. Good luck! ~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~ Jennifer in Vermont Thistle Hill Pottery Montpelier, VT Cobalt1994@AOL.com ~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~*~
Recipe: (Percent, Batch)
Potash feldspar 35.0 35.00 Dolomite 19.7 19.70 Whiting 2.7 2.70 EPK 22.7 22.70 Flint 20.0 20.00 ----- -------- Totals: 100.0 100.10
Also add:
Superpax 6.0 6.00 Bentonite 2.0 2.00
Comments:
The work horse of all glazes. It doesn't mark at all. It fires semi matt to semi gloss, cone 10 soft to down.
Recipe: (Percent, Batch)
Kona F-4 spar 25.0 25.00 Custer spar 20.0 20.00 Whiting 9.0 9.00 Dolomite 10.0 10.00 Talc theoretical 6.0 6.00 EPK 4.0 4.00 Calcined kaolin 14.0 14.00 Flint 12.0 12.00 ----- -------- Totals: 100.0 100.00
Also add:
Bentonite 2.0 2.00 Zircopax 8.0 8.00
Comments:
Smooth, silky, sensuous very velvety satin matt. High alumina, moderate MgO. Glaze Type: Ca Mg AlMatt. Opacity: Opaque. Firing type: Ox or Red From Val Cushing. VC ed Variations -- For Blue use 1.5% Cobalt Carb and 0 .5% Chrome. ??? Mg + Co= purple. I doubt this makes blue.
Recipe: (Percent, Batch)
Kingman feldspar 41.0 41.00 Silica 20.0 20.00 Talc 15.0 15.00 Gerstley borate 12.0 12.00 Dolomite 7.0 7.00 EPK 5.0 5.00 ----- -------- Totals: 100.0 100.00
Comments:
a nice, fat , matte very-white. Due to the magnesium the talc, this glaze has that peculiar property of turning cobalt purple. Can use Custer instead of Kingman and use 15 gr ( instead of 12 gr) of Gerstley Borate for cone 6 glaze.
Recipe: (Percent, Batch)
Custer feldspar 46.6 46.59 Gerstley borate 15.9 15.91 Dolomite 8.0 7.95 Kaolin 5.7 5.68 Flint 23.9 23.86 ----- -------- Totals: 100.0 99.99
Also add:
Ultrox 6.8 6.82
Comments:
For turquoise add: 1% cobalt carbonate & 1% Chromium Oxide Yields a nice matt turquoise. We typically fire our cone 10's in reduction because we don't have an electric kiln that fires that high. Still, these recipies ought to work in oxidation - at least worth a try: Liz Dodge Berkeley., CA lizzardol@aol.com
Recipe: (Percent, Batch)
G-200 feldspar 39.7 39.70 Talc 12.9 12.90 Whiting 16.8 16.80 Silica 27.7 27.70 EPK 3.0 3.00 ----- -------- Totals: 100.0 100.10
Also add:
Bentonite 2.0 2.00
Comments:
Originally KINGMAN feldspar 8000 GMS = 17.78 LBS WHITE SEMI MATT GOOD FOR ON GLAZE DECO TOTALLY OPAQUE, June: I got this Rx from CM some years ago. It was touted to be a good glaxe to paint on. I found it to be a perfect buttery matt stable glaze to cone 10+. That oribe over it is dynamite. Thin it is pink!!, thicker it is green. I shoot it off a brush through a screen for a fine speckle and the remove the screen ( read strainer ) and throw it on\at the pot with a brush. It is effective for a casual design and fun. I found it best on a white body and that westwood granite is terrific. Have a ball. If SMr. Yanigara is lurking out ther, take a bow. Donald Goldosbel in the paradise of spring in the desert of the San Fernanado Valley. pots@pacicnet.net
Recipe: (Percent, Batch)
Bone ash 10.0 10.00 Lithium carbonate 10.0 10.00 Nepheline syenite 62.0 62.00 Grolleg 18.0 18.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 10.0 10.00
Comments:
From Margaret Bohls. CM 11-2014. Tenmoku-like brown-black, but super shiny and sometimes gold metallic.
Recipe: (Percent, Batch)
Kona F-4 Spar 34.0 34.00 Barium carbonate 25.0 25.00 Dolomite 12.0 12.00 EPK 7.0 7.00 Flint 7.0 7.00 Zircopax 15.0 15.00 ----- -------- Totals: 100.0 100.00
Comments:
Originally from Clarence Merritt to Gene Lewis - was named Lewis Yellow. From Val Cushing. Yellow: Straw Naples yellowish w/ specking. VC ed AU Sp. '92 - tested w/ strontium replacing barium both 1:1 and 0.75:1 -- unsatisfactory, not yellow but beige Variations -- Woo Yellow = + Red iron oxide 3 Woo Blue (periwinkle) = + CoCO3 1 + rutile 4 Woo White (warm white) = + 4 rutile Woo Purple (maroon speckled) = + Manganese 4
Recipe: (Percent, Batch)
Potash feldspar 46.3 46.30 Dolomite 15.0 15.00 Whiting 9.2 9.20 Bone ash 7.4 7.40 Kaolin 22.2 22.20 ----- -------- Totals: 100.0 100.10
Also add:
Zircopax 7.4 7.40 Red iron oxide 1.1 1.10 Rutile 1.1 1.10
Comments:
submitted by: Ruth Ballou e-mail: rballou@mnsinc.com
Recipe: (Percent, Batch)
F-4 feldspar 43.4 43.40 Strontium carbonate 18.4 18.40 Dolomite 11.6 11.60 Talc theoretical (milled white) 1.2 1.20 Kentucky OM #4 11.2 11.20 Silica 14.2 14.20 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 2.8 2.80
Comments:
louis katz
Recipe: (Percent, Batch)
Kona F-4 spar 40.0 40.00 Barium carbonate 30.0 30.00 EPK 8.0 8.00 Flint 10.0 10.00 Dolomite 12.0 12.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 6.0 6.00
Comments:
Thin-dry rusty type. Medium-yellowish colors. Thick-smooth warm brown to yellow brown. Greenish overtones. Glaze Type: Ba Ca. Opacity: Opaque. Firing type: Reduction From Val Cushing. VC ed
Recipe: (Percent, Batch)
F-4 feldspar 33.9 33.90 Strontium carbonate 18.4 18.40 Dolomite 11.8 11.80 Ball clay 7.0 7.00 Plastic vitrox 24.2 24.20 Silica 4.8 4.80 ----- -------- Totals: 100.0 100.10
Also add:
Red iron oxide 2.9 2.90
Comments:
Apply medium to thick. barbara lewisWellSpring ClayWorks 5412 Well Spring Road La Plata, MD 20646 (301) 932-3915
Recipe: (Percent, Batch)
F-4 feldspar 34.0 34.00 Strontium carbonate 18.5 18.50 Dolomite 12.0 12.00 Kentucky OM #4 13.0 13.00 G-200 spar 9.5 9.50 Silica 13.0 13.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 3.0 3.00
Comments:
I have recalculated this glaze without the plastic vitrox - I used G200 spar but you can use Custer and It would not make much difference. This glazes is short of silica for a cone 10 glaze - by a fair bit and it will probably craze on most bodies - It should not be used with toxic materials because they will leach out when in contact with certain foods - it may also discolour under certain conditions. FORMULA & ANALYSIS ------------------ *CaO........ .23 4.95% *MgO........ .19 2.82% *K2O........ .09 3.08% *Na2O....... .13 2.97% *SrO........ .37 14.38% Fe2O3...... .06 3.57% TIO2....... .01 .17% AL2O3...... .35 13.42% SiO2....... 2.41 54.63% RATIO 6.92 (original ratio was 6.89) EXPAN 616.35 (original was 621.39) WEIGHT 264.71 Ron Roy 93 Pegasus trail Scarborough Otario Canada M1G 3N8 Phone: 416-439-2621 Fax: 416-438-7849 Web page: Home page http://digitalfire.com/education/people/ronroy.htm
Recipe: (Percent, Batch)
Cornwall Stone 52.5 53.00 Flint 13.9 14.00 EPK 7.9 8.00 Whiting 25.7 26.00 ----- -------- Totals: 100.0 101.00
Also add:
Red iron oxide 3.0 3.00 Rutile 9.9 10.00
Comments:
Rutile or Ti are needed to make this a matt. Variations -- yellow olive + 2% Cu maroon +2% iron chromate
Recipe: (Percent, Batch)
G-200 feldspar 53.2 53.20 Dolomite 19.4 19.40 EPK 22.9 22.90 Whiting 4.5 4.50 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 3.5 3.50 Red iron oxide 1.3 1.30 Zircopax 15.0 15.00
Comments:
From Susan Harris
Recipe: (Percent, Batch)
Dolomite 11.6 11.60 Strontium carbonate 20.7 20.70 Nepheline syenite 58.0 58.00 Kaolin 9.7 9.70 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax Plus 8.9 8.90 Red iron oxide 2.7 2.70 Bentonite 4.3 4.30
Comments:
Used for dry-glaze once-fire soda and wood at Curaumilla.
Recipe: (Percent, Batch)
Nepheline syenite 71.6 71.60 Dolomite 23.6 23.60 Kentucky OM #4 4.8 4.80 ----- -------- Totals: 100.0 100.00
Also add:
Superpax 17.9 17.90 Bentonite 2.0 2.00 Red iron oxide 1.1 1.10 Titanium oxide 1.1 1.10
Comments:
From Ayumi Horie.Soft, satin yellow.Thin this is waxy yellow breaking orange-brown - very pretty. Thick it's glossy pale yellow, and to me not as nice -often pinholes thick. Can be bumpy thick over other glazes. UF Shop glaze in reduction. Variations -- For white, omit RIO. Improved yellow from Eric Lewis - add 1.1 TiO2 to the recipe and colorants.
Recipe: (Percent, Batch)
NC-4 feldspar 19.6 18.00 Custer feldspar 22.8 21.00 Dolomite 6.5 6.00 Whiting 9.8 9.00 Strontium carbonate 13.0 12.00 Ball clay 10.9 10.00 Flint 17.4 16.00 ----- -------- Totals: 100.0 92.00
Also add:
Zircopax 8.7 8.00
Comments:
+ Cerdec yellow inclusion stain 10 and Cerdec orange inclusion stain 2. From Alumi Horie.
Recipe: (Percent, Batch)
Potash feldspar 53.2 53.20 Dolomite 19.4 19.40 EPK 22.9 22.90 Whiting 4.5 4.50 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 16.0 16.00 Tin oxide 3.5 3.50 Red iron oxide 1.3 1.30
Comments:
This one fires a toasty brown where thin and a fat yellow-white where thicker. No spotting, but the tones are very similar to the Ken Ferguson casserole in CM. A good 'un. submitted by: Richard Gralnik e-mail: rlg@patuxent.desktalk.com source for original recipe: El Camino College
Recipe: (Percent, Batch)
Kona F-4 spar 34.0 34.00 Barium carbonate 25.0 25.00 Dolomite 12.0 12.00 EPK 7.0 7.00 Flint 7.0 7.00 Zircopax 15.0 15.00 ----- -------- Totals: 100.0 100.00
Also add:
Red iron oxide 3.0 3.00
Comments:
Originally from Clarence Merritt to Gene Lewis - was named Lewis Yellow. From Val Cushing. Straw Naples yellowish w/ specking. VC ed AU Sp. '92 - tested w/ strontium replacing varium both 1:1 and 0.75:1 -- unsatisfactory, not yellow but beige
Recipe: (Percent, Batch)
Custer feldspar 42.8 42.78 Barium carbonate 32.5 32.49 Dolomite 15.3 15.32 EPK 9.4 9.41 ----- -------- Totals: 100.0 100.00
Also add:
Tin oxide 9.4 9.41 Red iron oxide 3.3 3.28
Comments:
use Red Iron Oxide 3-4% This version of the recipe dates back to the early 1970's, possibly even the late 1960's. Cheers, Harvey Sadow cyberscape@earthlink.net
Recipe: (Percent, Batch)
Custer feldspar 33.0 33.00 Talc theoretical 21.0 21.00 Flint 16.0 16.00 EPK 15.0 15.00 Whiting 12.0 12.00 Zinc oxide 3.0 3.00 ----- -------- Totals: 100.0 100.00
Also add:
Titanium dioxide 7.5 7.50 Copper oxide 1.0 1.00 Tin oxide 1.0 1.00
Comments:
Recipe: (Percent, Batch)
Nepheline syenite 20.0 20.00 Lithium carbonate 10.0 10.00 Whiting 17.1 17.10 EPK 10.0 10.00 Frit P-25 42.9 42.90 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 5.7 5.70
Comments:
From Mark Burleson's "Ceramic Glaze Handbook"
Recipe: (Percent, Batch)
Frit P-25 15.3 15.30 Nepheline syenite 71.4 71.40 Lithium carbonate 3.6 3.60 Whiting 6.1 6.10 EPK 3.6 3.60 ----- -------- Totals: 100.0 100.00
Also add:
Zircopax 2.0 2.00 Bentonite 5.1 5.10
Comments:
add 7.5% 6464 stain plus 2% Vee Gum From Karen Newgard. Very different unity formula from Mark Burleson's Zello.