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  1. Hi Folks, I have started to use cone 10 porcelain from sheffield pottery. Since it is full of impurities, I decided to fire my porcelain pots in oxidation. My pieces are pretty thin and I get crawling just along the rim of each piece....like clockwork. Crawling is also a problem along sharp ridges where curves of the form jut out and then recede. Does anyone use Sheffield's porcelain cone 10? If so, would you be kind enough to share a clear porcelain glaze recipe that does not crawl, with me? FYI, I wear gloves to handle the ware, glaze immediately after bisque so dust and grease are not a problem. I have added 1.5% bentonite to my glaze to add some small platelets to my glaze mix which has made little to no difference. The recipe which I use (from Mary Risley (RIP) at Wesleyan University 40 years ago....): Custer spar 33 Flint (silcosil) 32 Whiting (snocal 40) 20 Grolleg Kaolin 15 Help?!!! Does anyone have any recommendations (bedsides switching to EPK in the glaze. I am in the process of testing it)? Sharon Nahill Oak Hill Pottery Meredith, NH
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