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bubble up
Posted: Sun Jun 05, 2016 5:32 pm
by jim simmons
What in the devil is this. This is the first time that I have heard this term
Jim
Re: bubble up
Posted: Mon Jun 06, 2016 2:07 pm
by JestersBaubles
aka Boiled glass, I think.
Dana W.
Re: bubble up
Posted: Mon Jun 06, 2016 3:16 pm
by Kevin Midgley
It is a great way to get the COE to shift.
Re: bubble up
Posted: Mon Jun 06, 2016 9:34 pm
by Judd
You can achieve boiled glass (or the effect) with lower temps and longer holds. Still, some COE shift occurs.