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  #25  
Old 05-15-2018, 10:29 AM
Dan Vanantwerp
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Round 2

With the guidance from Jordan that his 5% is a theoretical 87.8 LEC to match Cristalica, I made a 3.2% with a 90.2 LEC. Wanted to try a bit more phosphate for the white I want to achieve.

Good news: I love this glass! The color was amazing and came on easily after just a couple strikes. Melted well even with more silica...lots of stirring and kept my borax level the same. I'm doing an overnight at 2180 after melting it all down at 2112. Both the Brossphate and my chalcedony really like this high temp period to get everything melted in.

Bad News: Made it out of the annealer, but...no rings for a test. I sawed another cylinder of known compatible glasses and that was fine. I'm going to try and get closer to Jordan's 5% LEC number next time.

Wash...rinse...repeat
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