Monthly Tech-Tip | No tracking! No ads! |
Clay bodies having coarser particles often create pinholes on the fired glaze surface. The problem is most serious on tooled surfaces (like the base of this mug). These two are made from the same clay and the same glaze. But the one on the right was fired using a drop-and-hold firing schedule. That has completely eliminated the problem.
Glossary |
Drop-and-Soak Firing
A kiln firing schedule where temperature is eased to the top, then dropped quickly and held at a temperature 100-200F lower. |
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