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sv: matt macro crystalline glazes

updated fri 21 aug 98


Isak Isaksson on thu 20 aug 98

-----Ursprungligt meddelande-----
Fren: Denise Wright
Datum: den 19 augusti 1998 15:48
Dmne: matt macro crystalline glazes

----------------------------Original message----------------------------
We're presently experimenting with macro crystalline glazes and have had
some success with gloss glazes. Now we'd like to know if anyone has
experience of matt macro crystalline glazes as we have seen a number of
examples, but can find no literature on the subject. Any help out
there? Thanks, Denise and Viv
Try this:
Red lead 34.9
Silica 25.7
Kaolin 15.8
Rutile 10.1
ZnO 7.4
Whiting 6.1
Fire just under c/7 and hold for 30 min. Take temp down (fast) to c/5 and
hold for 1-3 hour.
Or this:
Frit #25 Pemco 55
ZnO 30
Silica 15
Fire to c/9, drop to c/7 and hold .......

An old one called Laura`s for c/9
Kingman feldspar 52.7 (old with less than 1% Feo)
Colemanite 12.5
Barium carb 11.4
Whiting 7.8
TiO2 7.0
ZnO 5.3
Kentucky old mine #4
And luck to you
Take care
Isak Isaksson