Kollin and Rebakah on thu 13 mar 97
Does anyone have a good Cone 03 +/- white crackel glaze that doesnt require
P 3-111?
Please Im frustrated
Kollin Baker
Pi Pottery
404 West 51st Apt. A
Austin Texas 78751
"Rafael Molina-Rodriguez (Rafael Molina-Rodriguez)" on sun 16 mar 97
Kollin :
The following is the clear crackle glaze we use here at the college :
Clear Crackle for Raku
Colemanite 80 %
Potash Feldspar 20
100 %
For copper metallic (iridescent rainbow colors) add 5 % copper
carbonate and 10 % Red Iron Oxide.
Good luck!
Rafael
rmr3431@dcccd.edu
>>> Kollin and Rebakah 03/13/97 06:03am >>>
----------------------------Original message----------------------------
Does anyone have a good Cone 03 +/- white crackel glaze that doesnt
require
P 3-111?
Please Im frustrated
Kollin Baker
Pi Pottery
404 West 51st Apt. A
Austin Texas 78751
Marvin S. Flowerman on sun 16 mar 97
Here are two recipes for white crackle which I use repeatedly in Raku firing:
BARIUM WHITE CRACKLE
Colemanite 60 grams
BuckSpar(K-200) 50 grams
Barium Carbonate 22 grams
Silica 16 grams.
Of course you can multiply these quantities by whatever factor you want to
get the quantity you want to make up.
Another excellent white crackel given by Piepenburg is:
45% Gerstley Borate
35% Wood Ash
15% Flint
5% Zinc Oxide.
Good Luck!
Marvpots@aol.com
Marvin Flowerman
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