turquoise opal 96 question - WarmGlass.com

turquoise opal 96 question

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BobbieMatus
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turquoise opal 96 question

Postby BobbieMatus » Thu Aug 23, 2012 4:08 pm

I recently fired a piece of turquoise opal 96 with clear 96 on top and there was a metal looking blob plus a bubble after the firing. Has this happened to anyone? firing schedule
400 to 1220 hold 20 min
400 to 1450 hold 10 min
full to 950 hold 30 min
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cat.jpg

Morganica
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Re: turquoise opal 96 question

Postby Morganica » Thu Aug 23, 2012 6:11 pm

How did you assemble the glass? Did you use any kind of adhesive or stickum between the clear and the turquoise? It looks as though you've got some contamination there.
Cynthia Morgan
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DonMcClennen
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Re: turquoise opal 96 question

Postby DonMcClennen » Thu Aug 23, 2012 6:18 pm

I doubt that it's the fault of the glass...Maybe something from inside your kiln.
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AndyT
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Re: turquoise opal 96 question

Postby AndyT » Thu Aug 23, 2012 8:24 pm

Looks like the cat's fault. :twisted:

BobbieMatus
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Re: turquoise opal 96 question

Postby BobbieMatus » Thu Aug 23, 2012 8:46 pm

glue was used only on legs and tail not on body of cat

Morganica
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Re: turquoise opal 96 question

Postby Morganica » Thu Aug 23, 2012 10:02 pm

Well, there's some kind of contamination in there--it's pretty classic-looking. Could there have been a pricetag/sticker or something (or sticker residue) on the glass? Paint? Is there a second bubble under the turquoise glass or only the visible bubble between the turquoise and clear?

I have a hard time believing it's the glass--whatever the contamination is, it outgassed to make the bubble, and it's a nice, round shape, just like a sticker or a dab of glue/paint/metallic marker/etc. That argues that there was something fairly significant added to the glass at that spot, after it was annealed by the manufacturer but before it was fired in your kiln.
Cynthia Morgan
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BobbieMatus
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Re: turquoise opal 96 question

Postby BobbieMatus » Fri Aug 24, 2012 8:27 am

there is only the bubble between the clear and the turquoise. there was nothing on the glass, no label

Valerie Adams
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Re: turquoise opal 96 question

Postby Valerie Adams » Fri Aug 24, 2012 11:23 am

That charcoal spot looks exactly the same as the one time I used white glue between my glass.

rosanna gusler
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Re: turquoise opal 96 question

Postby rosanna gusler » Fri Aug 24, 2012 11:39 am

yep looks like carbon from glue to me. rosanna
artist, owner of wanchese art studio, marine finisher

BobbieMatus
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Re: turquoise opal 96 question

Postby BobbieMatus » Fri Aug 24, 2012 11:41 am

didn't use any glue on body of cat. I use super glue and used it only on the legs. I emailed spectrum and their first response was glue. Spectrum has asked me to mail them a piece of the glass.

Judd
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Re: turquoise opal 96 question

Postby Judd » Fri Aug 24, 2012 2:00 pm

If the glass was clean and without blemish, I don't think that is what caused the bubble. I see lumps around the legs. So you layered the glass around the cat's booty, right? If there was a gap there and you used too much glue, it's possible when the glue burned off the sooty gas migrated to the gap, formed a bubble, then cooled. Just a thought.

BobbieMatus
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Re: turquoise opal 96 question

Postby BobbieMatus » Fri Aug 24, 2012 3:39 pm

sounds like the most possibilty


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