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#1
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cone 6 porcelain
Hi Everyone,
I fired a piece of Laguna Frost cone 6 porcelain using my regular cone 6 stoneware glaze and the glaze ran. It doesn't on stoneware. Does anyone know if there is something about porcelain that would cause a glaze to run? It was the first time I fired porcelain. Do you have to use a different formula glaze even though it's a cone 6 porcelain? My glazes are rated cone 5-6. Thank you for any help on this issue. Sandi |
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#2
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cone 6 porcelain
On 8 Apr 2007 16:12:23 -0700, "Red Deer"
wrote: Hi Everyone, I fired a piece of Laguna Frost cone 6 porcelain using my regular cone 6 stoneware glaze and the glaze ran. It doesn't on stoneware. Does anyone know if there is something about porcelain that would cause a glaze to run? It was the first time I fired porcelain. Do you have to use a different formula glaze even though it's a cone 6 porcelain? My glazes are rated cone 5-6. Thank you for any help on this issue. Sandi Someone else will have to explain the chemistry of it, but I've seen warnings before not to use a particular glaze on porcelain due to running. My guess is that the flux in the porcelain can result in additional fluxing of the glaze, so a glaze that is fairly fluid on stoneware becomes even more so on porcelain. deg |
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