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But actually, I should be wondering why that one did not crack! This clay has 8% drying shrinkage and is very plastic, it should crack when it dries. But still, the uncracked one demonstrates with the extra care I could probably have dried all three successfully. Suppose you use a plastic porcelain and throw large, flat pieces. They should actually crack. If they do not, expect them to do so if you do not take great care in drying them. What is great care? At no time in the drying process should any part of the piece be stiffer than another. Sometimes throwing on a plaster bat is the only way to make this happen.
Articles |
Drying Ceramics Without Cracks
Anything ceramic ware can be dried if it is done slowly and evenly enough. To dry faster optimize the body recipe, ware cross section, drying process and develop a good test to rate drying performance. |
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Glossary |
Inside-only Glazing
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