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

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  #1  
Old 2010-11-11, 10:06am
jgraff jgraff is offline
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Default slump schedule for colour de verre mold

I just got a new Colour De Verre ring and heart mold and some new Bullseye coarse frit. I was dying to try it out. I figured, for a change, I'd follow the directions. They give a schedule of

350 1250 10
MAX 1420-1440 10-20 minutes
MAX 960 30-60
60 700 0

My regular slumping schedule is

350 1000 0
1000 1420-1440 30-60 minutes (depending how slumped I want it)
Max 1000 8
300 950 20

So I have two questions.

Why do they recommend so short of a slump time?
Why do they recommend so long of a cool time?

Since I usually leave them in the kiln I have a gradual cool down anyway. But 60/hr to 700 takes forever.

The short slump time left the pieces unfused.

I'm going to bump them up but I'm trying to imagine how this is a useful schedule.

Janet
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Old 2010-11-11, 11:44am
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houptdavid houptdavid is offline
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You might want also to post here...
http://www.lampworketc.com/forums/forumdisplay.php?f=33


"Why do they recommend so short of a slump time?" you are using frit
"Why do they recommend so long of a cool time?" because the piece is thicker than your normal glass
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