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Showing results for tags 'clear glaze blistering'.
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Hello all, My first time posting here, but I am at wit's end! Problem should not be this complicated. I'd appreciate any advice: Blistering of Amaco LG-10 clear glaze used on Amaco Sedona Red Clay body on interior of 5 1/2" diam bowls. Exterior worked fine using layered Amaco Artist's choice Exotic Blue, Seafoam Green, a band of clear. Will try to summarize scenario and conditions : 1. Electric Kiln in the damp basement. No vent. 2.. Bisque fired (tightly packed kiln!) ^04 3. Wiped interior and exterior with damp sponge, holding base of bowl. 3. Glaze poured into interior, brushed on exterior. 4. 4 bowls on each shelf on three levels of shelves. Bottom shelf was about 1.5" above tops of bowls, 5. Subsequent shelves less than 1" above bowls. 6. Fired to ^05 at preprogrammed medium speed (8.5 hours) 6. Blistering occurred at all shelf levels and equally on insides of bowls. 7. touched up glaze, Re fired at ^05 on Slow speed with a 10 min hold (13.5 hours) 8. STILL BLISTERING - Maybe fewer blisters than originally, and some dark spots and indents where maybe a blister burst and settled out. Please advise at your earliest convenience!!!