C Walker
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Bumps on surface
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Thanks to both of you for your advice. I’ve just double checked and one of my clay bodies has a top temperature of 1220 centigrade so I reckon thats why my tiles are sometimes bloating. The other pieces were made from reclaim clay and have some of the same clay mixed in. Its not happening in any other clay. Mystery solved- so now I wont be wasting so much time decorating pieces that are likely to bloat. Thank you!
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Some of my stoneware pieces (fired to 1220) have come out with lumps. These seem to be in the clay rather than the glaze. Only 3 out if the 12 pieces have these. These are in different clay bodies and are not in pieces near to the elements. How is it that these do not occur when bisque firing? My clay bodies can be fired higher than 1220 so Im not over firing in that sense. Has anyone ideas about what I can do?
