Answered By: Regan Brumagen
Last Updated: Jul 19, 2016     Views: 10

Check out Mickelsen's article on lampworking using soft glass. He includes information on COE and provides a list of suppliers at the end of the article.

http://www.mickelsenstudios.com/articles/SOFTTCH1.HTM

Also see the warmglass.com website's information on COE: http://www.warmglass.com/COESummary.htm
http://www.warmglass.com/Glass_compatibility.htm

According to the glasscolor.com website, which lists COEs for many different glass makers, there are one or two with lower measured COEs than Bullseye:
http://www.glasscolor.com/colors/coefficient_table.aspx

If you need more technical/background information than this, I'm attaching a bibliography of materials on COEs.

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