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Can I get some help from a glass artist - 90 vs 96

Posted by Betsy Freeman on September 29, 2010 at 10:43am in Web Site Reviews, Internet Marketing and Tech
Hi - I have just joined the community and am very excited to connect with other artists, especially glass artists.  I am a self taught  - started with fusing, then working into mosaic by chance.  As I still love fusing,  I started combining the 2 ways....heating every piece of glass before using, creating a fused mosaic that I am loving.  I am confused about using 90 vs 96 glass. They SAY the 2 don't fuse but sometimes it does! I have had a couple of pcs break n firing while using the 2, but not alot. I find if I really layer the glass, the 2 don't mingle well.  If anyone is in the Northern NJ/NYC area and wants to help me get to the next level, I would love not only some advice from the whole community, but as a teacher/mentor.  I have pictures on my page if you want to see what I have done. Intertwinned is my most recent piece combining the 2 techniques.
Looking forward to hearing from you,
Betsy

intertwinned.jpg

FUSED-MOSAIC.jpg

my first mosaic2009.jpg

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  • Michael Skeen September 29, 2010 at 1:40pm
    90 and 96 are just at the range where they will have compatibility issues. They usually say that anything more than a couple of points different shouldn't be used together. There are ways around it, but it is complicated and usually not worth the effort. Because of a potential instability of the project, I personally wouldn't mix 90 and 96. If you had a polariscope, you'd be able to see the internal stresses that are built into a piece with varying COE.
    • Betsy Freeman > Michael Skeen September 29, 2010 at 5:27pm
      What might a polariscope be?
      • Michael Skeen > Betsy Freeman September 29, 2010 at 6:09pm
        A polariscope is a device that is designed specifically to show stress in glass. It's made by taking a polarized plate with a light beneath it, leaving a space to put the glass pieces, then another polarized plate above. The polarizing plates allow for the stresses in the glass to show up as lines. Not many (read that as almost none) glass workers use them, but they pretty much choose a kind of glass, Bulls Eye,Spectrum, Boro, etc. and work with it. Good luck finding another glass worker up there. It's really fun to work with someone from time to time.
        • Betsy Freeman > Michael Skeen September 29, 2010 at 8:06pm
          ok, lets get another question... I really am self taught - bullseye, spectrum and boro are brands of glass or types of glass? I usually work with bulls eye but have bought some spectrum...so much to learn when you start from the backside of learning...create first then learn afterwards what you have done...
          btw - I looked at your work - I really love the one on the right - altho all 3 pcs are fantastic!
          • Steph Mader > Betsy Freeman January 5, 2011 at 11:35pm

            I know this is an old post, but I wanted to suggest that you post glass questions on www.warmglass.com, on the board. There are tons of very knowledgeable people there who will be delighted to answer every question.

             

            • Betsy Freeman > Steph Mader January 10, 2011 at 11:45am

              Thanks Steve, I have joined warmglass.com - what a great site. Seems a bit more of what I am needing. I am not a pro like the rest of you in here. I am trying to become one, but there's alot between here and there...

              again,

              thanks for your time

  • S. Michelle Babcock September 29, 2010 at 1:03pm
    I would try looking at lampworketc.com they might have the answer for you.
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