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Tips, Techniques, and Questions -- Technical questions or tips |
2010-03-29, 10:08pm
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working to pay for glass
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Join Date: Sep 23, 2009
Location: Ardrossan Alberta Canada
Posts: 248
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Okay maybe this is a stupid question
I know you can use say 5% 96 on 104 does it work the other way also
ie 96 coe with a littel 104 ?
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2010-03-29, 10:29pm
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just another glass addict
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Join Date: Feb 06, 2006
Location: Santa Cruz
Posts: 396
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I believe you can use a lower coe in a higher coe because the higher coe exerts more surface tension so it holds in the lower. I just read about this in Jim Kervin's book on glass casting and kiln forming. It had a lot of information about compatibility and annealing. I think he wrote the book with Dan Fenton quite some years ago.
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Polly
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2010-03-29, 10:32pm
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just another glass addict
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Join Date: Feb 06, 2006
Location: Santa Cruz
Posts: 396
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I guess I didn't really answer your question, but in the book I believe his point was that a lower coe will not hold a higher one but a higher one will hold a lower one. I think that is why you can't use 96 with bullseye. You can always try it anyway. I hope that helps.
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Polly
"Confidence, like art, never comes from having all the answers; it comes from being open to all the questions."
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2010-03-30, 7:03am
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Lampworkaholic!
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Join Date: Apr 22, 2008
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You definitely can use a little 96 with Bullseye. I do all the time and have never had a problem. I accidentally made a 96 vine cane using a black BE thin stringer and after watching it for a month, nothing bad happened so I used it, no problems.
A lot of furnace can is not exactly 96 more like 92-96 and closer to BE than to 104.
That said, I would be more cautious about using 104 on 96. I think a little silver glass on a 96 base would probably be OK, or a twistie with Raku and silver on a 96 base, but do a little testing first.
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2010-03-30, 2:43pm
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working to pay for glass
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Join Date: Sep 23, 2009
Location: Ardrossan Alberta Canada
Posts: 248
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okay that answers my stupid question !
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2010-03-30, 2:59pm
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Senior Member
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Join Date: Jun 14, 2005
Location: The Rocky Coast State!
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Uh uh, no such thing as a stupid question. If you don't know, you ask and learn. NO SUCH THING as a stupid question about glass in my book.
Sue
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Sue Walsh
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2010-03-30, 4:35pm
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working to pay for glass
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Join Date: Sep 23, 2009
Location: Ardrossan Alberta Canada
Posts: 248
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thanks Sue
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2010-03-30, 5:42pm
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Senior Member
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Join Date: Sep 29, 2009
Location: SoCal
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Quote:
Originally Posted by sixbabygirls
okay that answers my stupid question !
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That wasn't stupid at all.. I actually learned something because you asked so thank you!
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2010-03-30, 9:10pm
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Life is change. Love it
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Join Date: Oct 10, 2005
Location: Ontario Canada
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I have never had success with using 104 on 96. They always crack. 96 on 104, no problem
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2010-03-31, 9:10am
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as in the state
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Join Date: Feb 05, 2006
Location: Yuma, CO
Posts: 1,428
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Trey Cornette talks about using 104 on 96, and he doesn't recommend it, either.
You can do 96 raku on 104, but not 104 raku on 96. I think it has to do with the technical response you got in post #2 about the surface tension and Jim Kervin's book.
I would not recommend using 104 on 96.
-Amy
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2010-03-31, 9:11am
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working to pay for glass
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Join Date: Sep 23, 2009
Location: Ardrossan Alberta Canada
Posts: 248
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okay i will stick to 96 on 104 !
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