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Glass slumping


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#1 Iforgot

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Posted 27 September 2012 - 09:48 PM

Hey world,

I am loading a kiln for a bottle slumping and I forgot what cone to fire to, I think it might be ^012? Please help!
Derek VonDrehle

Raku, Pit fired, Majolica, and Stoneware ceramic artisit

#2 Mark C.

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Posted 28 September 2012 - 02:34 PM

Glass slumps at very low temps-I about 37 years ago tried to fire my own labels on beer bottles and all the necks slumped as well-So if memory serves its way below luster temps.
Mark
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#3 Idaho Potter

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Posted 28 September 2012 - 04:20 PM

Google "slumping temperature of glass" you'll find many choices. I occasionally use glass threads, etc on some pots (decorative) and needed some help with temps. Started using a blog called "HOT OUT OF THE KILN'. They have a monthly newsletter as well. Might find it helpful.

#4 Bill T.

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Posted 28 September 2012 - 08:02 PM

Hey world,

I am loading a kiln for a bottle slumping and I forgot what cone to fire to, I think it might be ^012? Please help!


I do quite a bit of slumping. Just checked my firing log. Cone 015 with a 15 minute hold after a "fast" firing schedule. I just leave the kiln alone till it cools down to about 100




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