Ababi on thu 8 aug 02
The problem is that I do not know if you have such frits. ( among the 500 that are
made in North America)
ABABI'S SODA GLAZE FOR PORCELAIN
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Cone 6 1220 deg.C. -
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FRIT A 2120 p 45.00 sodium frit without boron Remoboid&Strick ( so I
think)
ENGLISH KAOLIN CC31 30.00
FRIT 3701 25.00 (soft high borax (KNO+Li2O= 1mol) Johnson
Matthey
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Seger Weight%
KNO 0.791 17.30%
CaO 0.152 2.90%
MgO 0.005 0.06%
Li2O 0.053 0.54%
Al2O3 0.363 12.59%
B2O3 0.415 9.83%
SiO2 2.774 56.78%
K2O 0.054 1.74%
Na2O 0.736 15.55%
Al:Si 7.64
Expan. 10.70
ST 286.44
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ABABI'S SODA GLAZE FOR PORCELAIN 2
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Cone 6 1220deg.C. -
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FRIT 3110 17.00
OM-4 Ball Clay 15.00
Cadycal (California) 5.00
Lithium Carbonate 1.00
SILICA 28.00
Cryolite 25.00
Boric Acid 9.00
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Seger Weight%
KNO 0.799 17.17%
CaO 0.148 2.84%
MgO 0.006 0.09%
Li2O 0.047 0.48%
Al2O3 0.370 12.89%
B2O3 0.393 9.35%
SiO2 2.771 56.97%
TiO2 0.008 0.21%
K2O 0.021 0.66%
Na2O 0.778 16.51%
Al:Si 7.49
Expan. 10.79
ST 287.89
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The cryolite in this amount might create mottled effect.
This glaze was planed for ^6 though it has high sodium and high boron it has high
alumina& silica. The way it is I believe it might work in my new raku way. might be a bit
matte: I shall fire it to ^04 and raku.
My supersession: two ways to apply either by spaying a thin film ( you must use warm
water and premix the boric acid) or by deeping- In the second case make the glaze
thin like 1 powder to 1 and 1/2 water.
You can mix with a mixer and spray, You might get mottled glaze ( from the unsieved
RIO)
You can sieve and get light browns. You add 3,4,5 RIO.
Because of the high boron, frit 3701 crystallize after a few days. In the substitution I
gave you there is boric acid that acts the same.
You imprint a sea shell: after glazing can apply on delicately any oxides or before
glazing delicate lines with wax resist.
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You may decide to start it all over make a glaze with 75 frit 3110 and add 24 EPK + 1
Lithium carbonate+ RIO and see what happens
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About the application of Berhens's glaze I wrote enough.
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There will be another letter about the glazes
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910/
http://www.milkywayceramics.com/cgallery/asharon.htm
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