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Mid Fire Glazes

Edouard's Bleu marbré cendré (Mottled blue ash glaze)
Cone 4
 

Nepheline/Syenite  Hardwood ash(washed)  Silica  Ball clay  Gerstley borate  Bentonite  Ultrox  Cobalt oxide

25%  20%  20%  5%  30%  2%  15%  5%

View an example of this glaze!
Thank you to Edouard Bastarache
for supplying glaze recipe and image.
 

Edouard's Brun veiné cendré (Mottled brown ash glaze)
Cone 4
 

Nepheline/Syenite Silica Hardwood ash (washed) Lithium carbonate Ferro Frit #3134 Bentonite Sorelslag

35%  16%  27%  3%  10% 3% 12%

View an example of this glaze!
Thank you to Edouard Bastarache
for supplying glaze recipe and image.
 

Steve's Brilliant Ink Blue
Cone 4
Oxidation or Reduction
 

Ferro Frit 3134  Potash Feldspar  Ball Clay  Zinc Oxide (dense)  Cobalt Carbonate  Cobalt Oxide

50.0  20.0  20.0  10.0  1.5  1.5

 

Translucent Clear Gloss
Cone 4 - 5
Oxidation
 

Ferro Frit 4508  Nephelene Syenite  Ball Clay  Tin Oxide

60.0  20.0  20.0  6.0

 

Clear to Milky Crackle
Cone 4 - 6
Oxidation
 

Lithium Carbonate (Toxic!)  Gerstly Borate  Zinc Oxide (calcined)  Calcium Flouride  Silica  Bentonite

25.0  25.0  5.0  5.0  25.0  2.0

Not suitable for tableware!
 

Clear Satin Matt
Cone 4 - 7
Oxidation
 

Ferro Frit 4508  Potash Feldspar  Ball Clay  Magnesium Carbonate

50.0  20.0  20.0  10.0

 

Smooth White Matt
Cone 4 - 7
Oxidation
 

Ferro Frit 4616  Nephelene Syenite  Ball Clay

60.0  20.0  20.0

 

Clear Bright Gloss
Cone 5
Oxidation
 

Gerstly Borate  Silica  Kaolin  Potash Feldspar  Bentonite

51.0  31.0  16.0  3.0  1.0

 

Helens Matt Textured Rust
Cone 5
Neutral Gas Atmosphere
 

Potash Feldspar  Nephelene Syenite  Dolomite  Kaolin  Silica  Barium Carbonate  Copper Carbonate

15  20  25  5  15  5  2

Not suitable for tableware!

Helens Satin Mottled Eucalyptus
Cone 5
Neutral Gas Atmosphere
 

Nephelene Syenite  Whiting  Ball Clay  Lithium Carbonate  Silica  Copper Carbonate

40  25  25  5  5  2

Comment: Results in muddy color in electic kiln. Not suitable for tableware!
 
 
Clear Gloss
Cone 5 - 6
Oxidation
 

Nephelene Syenite  Ferro Frit 4508  Kaolin  Silica

40.0  45.0  10.0  10.0

Ababi's Cone 6 Glazes FALLS CREEK SHINO ABABI.#6 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Cone 6 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, FRIT 3134 40.00 RED CLAY (GRT) 30.00 Dolomite 5.00 ULTROX 10.00 Tin Oxide 5.00 Red Iron Oxide 1.00 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Seger Weight% KNO 0.287 7.20% CaO 0.606 12.54% MgO 0.107 1.59% Al2O3 0.194 7.30% B2O3 0.463 11.89% SiO2 2.291 50.83% ZrO2 0.190 8.64% K2O 0.052 1.82% Na2O 0.235 5.37% Al:Si 11.81 Expan. 7.57 ST 323.02 You can try it with any red clay. This recipe substitutes a recipe with lithium carbonate. To get the yellow breaking brown I had to add 1 RIO. You might not need it if your local red clay has more than 7% Fe2O3. Use on buff clay body. SUPERCRAWL AVERAGE 4 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Cone 6 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Cryolite 15.00 ULTROX 35.00 BALL CLAY AK 9.00 Magnesium Carb Light 11.00 Nepheline Syenite 30.00 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Seger Weight% KNO 0.551 12.59% CaO 0.013 0.26% MgO 0.436 6.21% Al2O3 0.430 15.47% SiO2 1.826 38.75% ZrO2 0.612 26.62% TiO2 0.004 0.10% K2O 0.047 1.56% Na2O 0.504 11.03% Al:Si 4.25 Expan. 8.31 ST 367.33 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, And SUPERCRAWL #6 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Cone 6 1201 deg.C. - ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Nepheline Syenite 10.00 Magnesium Carb Light 3.66 BALL CLAY AK 3.00 Cryolite 25.00 ULTROX 58.33 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Seger Weight% KNO 0.813 14.17% CaO 0.005 0.08% MgO 0.181 2.03% Al2O3 0.373 10.57% SiO2 1.776 29.63% ZrO2 1.271 43.49% TiO2 0.001 0.03% K2O 0.020 0.51% Na2O 0.794 13.66% Al:Si 4.75 Expan. 8.67 ST 345.52 Both recipes must be like "sour cream". You better add CMC just before use, apply several times until the glaze crakles (i.e. before the firing). The CMC will help it to stay on the ware. As times passes you will learn how much or which of the two you prefare. I like #6 PLASTIC TOUCH ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Cone 6 1201 deg.C. - ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, STRONTIUM CARBONATE 23.00 Bone Ash 4.00 Dolomite 3.00 NORFLOAT POTASH FELDSPAR 16.00 like G-200 not far from custer feldspar Calcium Carbonate 7.00 FRIT 3110 23.00 ENGLISH KAOLIN CC31 24.00 copper oxide 3.00 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Seger Weight% KNO 0.228 8.30% CaO 0.379 10.62% MgO 0.031 0.63% SrO 0.362 18.76% Al2O3 0.285 14.54% P2O5 0.030 2.13% B2O3 0.020 0.70% SiO2 1.475 44.32% K2O 0.077 3.64% Na2O 0.151 4.67% Al:Si 5.17 Expan. 9.65 ST 377.62 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The glaze feels like touching plastic it is milky as clear and delicate turqouise. ABABI'S CONCRETE FOR ^6 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Cone 6 1201 deg.C. - ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Portland Cement 22.00 Magnesium Carb Light 8.00 Borax 15.00 ENGLISH KAOLIN CC31 20.00 SILICA 15.00 Cryolite 20.00 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Seger Weight% KNO 0.329 14.83% CaO 0.469 18.25% MgO 0.202 5.66% Al2O3 0.260 18.39% B2O3 0.075 3.64% SiO2 0.941 39.24% K2O 0.030 1.98% Na2O 0.299 12.85% Al:Si 3.62 Expan. 11.55 ST 363.58 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, A kind of silky clear mottled glaze ( the fluor in the cryolite has a mottling efect) While firing the fluor fumes are not healthy! Make as much as you need for one session. Looks different thin or thick!

 

Clear Gloss
Cone 6
Oxidation
 

Gerstly Borate  Silica  Kaolin  Whiting  Bentonite

49.5  32.0  16.0  1.5  1.0

 

Clear Gloss
Cone 6
Oxidation
 

Nephelene Syenite  Magnesium Carbonate  Zinc Oxide  Kaolin  Silica  Bentonite

35.5  14.6  11.9  2.4  35.6  1.0

 

Clear Gloss
Cone 6
Oxidation
 

Nephelene Syenite  Gerstly Borate  Silica  Kaolin  Bentonite

46.2  28.0  20.4  5.4  1.0

 

Clear Gloss
Cone 6
Oxidation
 

Volcanic Ash  Ferro Frit 3134  Koalin  Bentonite

63.7  27.3  9.0  1.0

 

Helens Satin Brilliant Blue
Cone 6-7
Neutral Gas Atmosphere
 

Potash Feldspar  Nephelene Syenite  Zinx Oxide  Silica  Barium Carbonate  Cobalt Oxide

15  20  20  5  40  0.7

Not suitable for tableware!
 

Translucent Clear
Cone 6 - 7
Oxidation
 

Potash Felspar  Calcite  Silica  Ball Clay  Ferro Frit 4508  Barium Carbonate (Toxic!)

25.0  20.0  35.0  25.0  20.0  10.0

Not suitable for tableware!
 
Clear Crackle
Cone 6
Oxidation
 

Volcanic Ash  Ferro Frit 3134  Kaolin  Kaolin (calcined)  Bentonite

52.5  28.0  5.3  4.0  2.0

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Disclaimer: It is the responsibility of anybody using the supplied glaze recipes to be informed of glaze dangers and to ensure the proper safety precautions are met when mixing and using glazes. In general glaze components marked 'toxic!' should not be used for tableware. Othert unmarked ingredients may be harmful to health on skin contact or if ingested. Frits may contain Lead Bisilicate. General safety precautions for ceramic materials apply. Contact a supplier, lecturer or professional if in doubt. Neither Ceramics Today nor its Guide Steven Goldate will bear any responsibility for incorrectly used glazes and/or ingredients, nor for any damages due to unexpected glaze results. All glazes should be tested before use.