Joseph Herbert on mon 26 jun 00
Alisa Wrote:
Date: Sun, 25 Jun 2000 19:19:21 +0200 From: Alisa and Claus Clausen
Subject: Cone 6 ox. glaze test for Midnight Blue
Recipe
Whiting 17 Ball Clay 8 Kaolin 22 Potash 44
ADD Cobalt ox. 5% (or equiv. of colb. carb. and don't say 7.5%!)
This was an interesting glaze, producing a matted blue on the surface over
an almost black ground. The blue areas are the thickest areas and have a
purplish tone. Not a glaze attractive for eating articles, in my opinion,
but otherwise a nice decorative glaze. Brought up a lighter blue with a
transparent over it. Very mat surface by itself.
Best regards, Alisa in Denmark
I am guessing that the "Potash 44" should be potash feldspar 44, other
wise there is very little silica in this glaze.
Joseph Herbert
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