Grace london Posted January 11, 2019 Report Share Posted January 11, 2019 Hello all, I am working on a bunch of ceramic heads, using a stoneware/paper clay I made. I generally bisque to 1170 then use a low matt 1070 to glaze ( generally using earthenware paper clay). So I'm wondering will they be much weaker than the recommended 1280? It's a commission so I don't have the time to test. I feel like I could get away with it, and they also won't shrink as much. Any thoughts gratefully received : ) ... Link to comment Share on other sites More sharing options...
glazenerd Posted January 11, 2019 Report Share Posted January 11, 2019 Hi Grace.. Welcome to the Forums. Low viscosity glass begins to form at 1117C: so you are shooting just over that. It would help if you could do a soak/hold for 20-30 minutes at peak temperature. For non-functional use you can probably get by with it, for functional use- no! tom Link to comment Share on other sites More sharing options...
Grace london Posted January 11, 2019 Author Report Share Posted January 11, 2019 Excellent, thanks Tom! Link to comment Share on other sites More sharing options...
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