Hi Fire ? from another newbie
Moderators: Brad Walker, Tony Smith
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Hi Fire ? from another newbie
In reading the board I became interested in the hi-fire technique so I tried it with some scrape last nite. System 96 glass in a 3 - 4" circle. It came out rather nice with the exception of a few "pit" looking spots. I went up to 1650 for 1 1/2 hrs. Any suggestions before I try something serious?
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Elsie,
I've been playing with the high fires in clay saucers. Many people go AFAP to 1700 - 1750 but each time I do that my saucer cracks. So I've been going about 600 dph to 1000 then AFAP to 1700 and hold for 90 minutes. They are a neat way to use scrap glass and the 10 1/2" saucer makes a perfect circle for slumping through the drop mold.
Have fun and remember to program an annealing cycle appropriate to the thickness of the finished product. I've been annealing mine for 90 minutes and haven't had any cracks with this new program.
Have you checked out the photos section? Several people have posted pictures of their high fires and pot melts.
Judy
I've been playing with the high fires in clay saucers. Many people go AFAP to 1700 - 1750 but each time I do that my saucer cracks. So I've been going about 600 dph to 1000 then AFAP to 1700 and hold for 90 minutes. They are a neat way to use scrap glass and the 10 1/2" saucer makes a perfect circle for slumping through the drop mold.
Have fun and remember to program an annealing cycle appropriate to the thickness of the finished product. I've been annealing mine for 90 minutes and haven't had any cracks with this new program.
Have you checked out the photos section? Several people have posted pictures of their high fires and pot melts.
Judy
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I've done lots of high-fires . . . no saucer. All the term means is the process temp for the particular procedure is higher than that of normal full-fuse temps. Usually a range between 1600 to 1700 and generally involving a soak at these high temps. Actually, I would think combing qualifies as a high-fire procedure, too.
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