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| Boro Room -- For Boro-related tips, techniques, and questions. |
2009-07-22, 10:34am
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Senior Member
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Join Date: May 21, 2006
Location: Cincinnati
Posts: 2,807
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Question on grinding/polishing
I'm working my way through old threads and came across this one
http://lampworketc.com/forums/showpo...&postcount=133 (Lovely pendants, Eric!)
Is there any reason that you couldn't, after the initial grinding/cutting process, reheat the piece in the kiln, and flame polish it?
Just wondering since boro is so friendly to being worked multiple times if flame polishing the face might not be a quicker answer to the polishing steps.
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Lynda
Cheetah, 5 lpm and 7lpm conc/generator (8-9 psi), natural gas (booster), started 11/06
"The time you enjoy wasting is not wasted time." -- Bertrand Russell
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2009-07-22, 11:11am
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Join Date: Jul 13, 2005
Location: Delaware
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I don't know, to be honest, but I'd think it would bubble as would a scratched rod, and wouldn't give you a nice polished finish. I'm curious to see what other say.
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Renee
Blue Moon Glass Studio
GTT Phantom & 2-Integra 10's
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2009-07-23, 7:15am
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ManBearPig
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Join Date: Jun 28, 2005
Location: Roanoke, VA
Posts: 8,540
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You can't flame polish borosilicate very easily. It will devitrify.
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2009-07-23, 7:34am
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Member
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Join Date: Jun 03, 2009
Location: Boynton Beach, FL 33437
Posts: 52
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Maybe I'm a little off on this, but I was taught that I could flame polish boro but I had to grind it to 600grit smoothness first before I did... Think that is from Advanced Flameworking Volume 1... And I have triend it and it did work ok, it just makes the edges a little less angular and a little more rounded...
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2009-07-23, 11:41am
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ManBearPig
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Join Date: Jun 28, 2005
Location: Roanoke, VA
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Any time I've tried it it devitrified.
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2009-07-23, 7:44pm
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Senior Member
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Join Date: Nov 06, 2005
Location: Austin - Texas
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Quote:
Originally Posted by Cosmo
Any time I've tried it it devitrified.
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This has been my result too. The clear was fine, but the color wasn't.
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Eric
The world is a dangerous place, not because of those who do evil, but because of those who look on and do nothing. ---- Albert Einstein
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