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Showing results for tags 'Pinhole'.
Found 2 results
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Hello, My white gloss glaze has recently started pinholing I believe. We have been using it for years with no issue. i initially started with the kiln it is firing to temp. We fire slow bisque and slow glaze programs to 06 and 6. I have tried bisquing to 04 with a hold on the end but the defect came back... I have tried a hold on the end of a glaze firing (20 minutes) with little improvement. We have tried the ware with this glaze in 3 different kilns all have the same problem especially on larger ware. We have also tried wiping down the ware lightly with a sponge on both
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Took some pots out of the kiln and noted pinholes in both the celadon (Amaco Sky) and satin matte (Amaco white) vases. This is one of my earliest glaze firings and I am curious as to the factors to investigate to better control this issue. Here is some data: 1. Both clay bodies are Sheffield 20231G clay 2. Bisque fired in my E23S L&L kiln (programmable) to Cone 06 (verified with actual cones as accurate). 3. These 2 examples were more than a year old before the glazes were applied. Wiped pots but NOT with damp sponge. Possible problem? 4. Applied 3 coats o
