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Old 10-15-2019, 02:30 PM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
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Pete VanderLaan is on a distinguished road
Dan's paper on the importance of viscosity is well known at this point and his points are valid particularly when it comes to casting but in blown ware, for the most part, expansion is still the big kid on the block.
I don't like the term C.O.E. because it stands for co-efficient of expansion , and I say "Of what? L.E.C. on the other hand stands for Linear expansion coefficient. That describes something.

If Oceanside is using that terminology regarding their own product, they would like to change the subject. The real question for the field is why there have to be so many clear cullets that are as different from each other as they are to the point of causing mismatch. Spectrum made three clears, none compatible with the other two. That to me is remarkable and hardly seems to promote the notion that they are serving the glass studios.
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