Mosey Potter
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Posts posted by Mosey Potter
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Bryan sometimes warping especially using porcelain is caused by kiln shelves with marred or uneven surfaces. Your mug might “catch” on a chunk on your shelf which inhibits the piece’s movement during the glaze firing. I had this problem with cone 10 reduction firings using porcelain and it was solved when I bought advancer kiln shelves. Anyways look carefully at your shelves first before you start monkeying around with the slip recipe. And good luck!
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I got this recipe from Ron Roy many years ago and it's great:
20 EPK
20 OM4
60 Alumina
I brushed it on with a sponge brush, but Ron tells me he uses a garden sprayer to apply.
detailed book on kiln building
in Equipment Use and Repair
Posted
If you follow this link you will see a free download link to 21st Century Kilns which has a lot of kiln plans including a wood kiln. Excellent resource. Cheers.
http://www.clayartarchives.com