Alisa og Claus Clausen on fri 30 mar 01
Dear Jennifer,
I tested the above receipe with subs for the original, using what I had =
available. I used my frit for the G.B, and an iron rich clay instead of =
Alberta Slip. I got a pretty unexciting brown. However, you may be =
exeriencing what I experience sometimess: good tests, bad big batches. =
Tom Buck wrote an answer to my problem which is in the archives, 12 feb. =
2001.=20
To paraphrase him, he says that this occurs a lot. It could be due to =
many different factors, but some of the most obvious and ones you can =
work with are:
The Mass Effect
-Equally careful mixing for both test batch and for large batch. Watch =
the minus and plus grams for the big batch.
-Try to make your clay test tile as similar in thickness to your average =
pieces, or the piece you will eventually glaze.=20
-Application should be the same.
-Adjust the glaze consistency for the small test to the eventual larger =
pieces.
-Add the likeliest raw material or oxide that you think is lacking in =
the big batch, in your case, maybe more of the whiteners and opacifier. =
Careful, because the whiteners are so refractory. Read Tom Buck's =
response, it is much better than my memory!
Take care,
Best regards,
Alisa in Denmark
Varn=E6svej 171, DK6200 Aabenraa
Danmark
t. 45 7461 3641
Aliskin@mail.dk
Alisa's Pot Shop
Skolevej 3, DK6200, Aabenraa
Danmark
t. 20246640
Potshop@mail.dk
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