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Tips, Techniques, and Questions -- Technical questions or tips

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  #1  
Old 2013-09-10, 8:36pm
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Default Schott Puck anealing

Anyone have a favorite garaging and annealing temp for a schott puck. I made a marble with one tonight and it looks like my normal temp of 950 might be slumping it a bit. Thanks, Steve
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Old 2013-09-11, 5:19am
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I have always run mine at 950. You might check the accuracy of your thermocouple or look at how close to the elements your piece is sitting. I check my kilns with a pyrometer from time to time just to be sure.

Robert
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Old 2013-09-11, 8:04am
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Came out of the kiln and it looks like 950 is good. Thanks
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Old 2013-09-11, 9:41am
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The other thing about the Schott glass is that it may appear to be solidified when it goes into the kiln but is actually still ever so slightly mobile. It has some odd working properties, like flashing from just soft to barely controllable runny liquid very suddenly when you hit just the right temp. It makes for great vacuum encasing but can be a real booger to manage otherwise.

Robert
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