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Blenko Glass
Posted: Sun May 24, 2026 2:21 pm
by Vonon
I have several partial sheets of Blenko glass plus many formed pieces that were discarded due to breakage. I've done compatibility testing with Bullseye and made a chart of "no goes". I want to break up some of the chunky stuff and fire it flat. I know it should be slow but is there a too slow? The fellow that let me climb into the dumpster said I could treat it like 90 coe. Any suggestions?
Re: Blenko Glass
Posted: Sun May 24, 2026 5:00 pm
by Brad Walker
I wouldn't assume it's 90 COE, so good thing you're testing.
It may devitrify.
Too slow not really an issue.
Re: Blenko Glass
Posted: Mon May 25, 2026 2:22 pm
by Vonon
Thank you Brad. Of the colors I tested with Bullseye, only the red developed incompatibility cracks

. I actually haden't thought about devit. Maybe I'll just donate it to a local stained glass artist.
Re: Blenko Glass
Posted: Tue May 26, 2026 1:03 pm
by Brad Walker
Vonon wrote: ↑Mon May 25, 2026 2:22 pm
Of the colors I tested with Bullseye, only the red developed incompatibility cracks
Red's almost always incompatible, no matter who made it.