Hi Fire ? from another newbie

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Linda Crissman
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Joined: Fri Mar 26, 2004 9:45 am
Location: CA

Hi Fire ? from another newbie

Post by Linda Crissman »

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?
Judy Schnabel
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Location: SW FL
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Post by Judy Schnabel »

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
Katia T.
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Joined: Sun Mar 23, 2003 4:35 pm
Location: Rio de Janeiro / Brazil

Post by Katia T. »

I´ve done some hi fires that I liked only with float.
I put some scraps, siffed porcelain paint, more scraps, another paint color (total 3 or 4 colors), siffed lots of Borax over all and it really worked, do devit, and good colors.
But remember that I am new to all this too!
Katia
Judy Schnabel
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Post by Judy Schnabel »

Hi Katia,

I wondered about doing float and sprinkling powders & frits.

In your post you said "do devit." Did you mean "no" devit?

Judy
Katia T.
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Joined: Sun Mar 23, 2003 4:35 pm
Location: Rio de Janeiro / Brazil

Post by Katia T. »

Sorry, yes it is no devit at all!
Katia
Lauri Levanto
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Location: Halikko, Finland

Post by Lauri Levanto »

Hi-fire is not yet in the dictionary.
Do I gyessw correct
- it is a form of frit casting to produce a flat blank for further use?

-lauri
Judy Schnabel
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Post by Judy Schnabel »

Lauri,

High fire is putting lots of compatible glass in a saucer and firing it "high." The high temperature melts all the glass together and makes interesting patterns.

Hope this clarifies.

Judy
Jackie Beckman
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Post by Jackie Beckman »

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.
Jackie Beckman
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Post by Jackie Beckman »

Probably a pot-melt too, come to think of it.
Brock
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Location: Vancouver, B.C.

Post by Brock »

Yup, and yup. Plus vitrograph work.

Pick a number. Anything over 1600 (?) is high fire.

Brock
My memory is so good, I can't remember the last time I forgot something . . .
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