Sue Hintz on tue 10 sep 96
I got this glaze from Ceramics Monthly and when I tested it
-- I thought it was wonderful,
but when I put it on a few larger pieces it was
awful!! I'm not quite ready to give up on
it. Can someone look it over and make
suggestions about the portions of chemicals?
This is a cone 5 ox.
Whiting 40
Frit 3195 405
G-200 Feldspar 165
Bentonite 25
EPK 65
Flint 300
On the tests it was a semi-transparent matt.
On the larger pieces it ended up
black and crusty and cratory. Yuck!
Any help would be appreciated.
Waiting hopefully with my crusty pots.
Sue
CFisher995@aol.com on wed 11 sep 96
This is the one from the Ray Bub article in November 1995 isn't it. I've been
playing around with it a little. I did the clear base, the white and the
black. I didn't get black and scummy but I haven't done it on anything larger
than a small bowl. I tried underglazes under the clear, majolica stains on
the white and the black. I want to try bigger but need to buy more 3195 Frit.
The clear seemed to be a little more white if it was overlapped too thick.
And the clear cracked. The white seemed nice and I really liked the black. I
tested it on small test tiles before I did the bowls - on porcelain, a light
stoneware, a dark stoneware and the lizella clay, which is like earthenware
but fires to cone 6. The problem I had was that when I dipped it it seemes
to bubble so I really needed to smooth it to make it look nice. It did the
pinholing like majolica glaze can do. I really didn't have any of the
problems you said. I also tried a couple of the colored variations (the pale
blue, the teal blue, and the yellow). Actually I fired to cone 6 rather than
5.
I also tried his bronze tan matt, the bronze green matt and the bronze bluw.
One of them looked good the first time I did it but they bombed the next
time.
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