Firing Schedule for abalone shell

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Dennis Wharton
Posts: 1
Joined: Fri Aug 31, 2018 1:05 pm

Firing Schedule for abalone shell

Post by Dennis Wharton »

I'm having issues in getting the correct firing schedule for casting Bullseye Glass into my lost wax Abalone mold. The abalone shell that the mold was made from is 9.5" x 7.25" x 4" with a max shell thickness of 3/8". I'm not getting the glass to completely flow into the shell cavity. I've placed manny venting shafts thru out the mold. My last run I took the temperature up to 1560 and held it for 1 hour. I'm farad of getting devitrification if I hold at the high temp too long. Any suggestions?
Kevin Midgley
Posts: 773
Joined: Mon Mar 10, 2003 11:36 am
Location: Tofino, British Columbia, Canada

Re: Firing Schedule for abalone shell

Post by Kevin Midgley »

raise mold off shelf
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