Slumping large pieces in Paragon Pearl 56

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mary matchael
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Slumping large pieces in Paragon Pearl 56

Post by mary matchael »

I have cracked two large pieces slumping them over a stainless steel mold. My question is should I take the kiln shelf out when slumping to expose the elements in the bottom of the kiln?
Valerie Adams
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Re: Slumping large pieces in Paragon Pearl 56

Post by Valerie Adams »

You'll want to post your full schedule in order to get the best help.

How far is your glass from the top element?
How tall is your stainless mold?
Bert Weiss
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Re: Slumping large pieces in Paragon Pearl 56

Post by Bert Weiss »

Your glass is probably cracking due to thermal shock. Slow down.
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Morganica
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Re: Slumping large pieces in Paragon Pearl 56

Post by Morganica »

As Val said, need schedule, and it wouldn't be a bad idea to either show a picture of the mold and the piece(s), or to at least describe the shape and the sizes/heights. Lots of possibilities here. Depending on the proximity of the glass to the elements as the glass starts to heat, there could be a number of problems.

If the glass is really close to the elements you might not be able to slow down sufficiently, so the solution could actually be the opposite of removing a shelf: You may actually need to "baffle" or insulate the glass from the elements to prevent that part of the glass that's closest to the elements from heating too quickly.

But there's no way to tell without more info...
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