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Old 03-30-2005, 11:55 AM
Steven O'Day Steven O'Day is offline
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Join Date: Jun 2002
Location: portland oregon
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Steven O'Day is on a distinguished road
In the mid 80's Therese LaHai was at CR Loo and wanted to try and figure out the in-compatability problem. She had the base glasses and colors tested and published the COE numbers in the catalog as a rough guide. I don't remember any talk of viscosity. I think at the supplier level before this it was caveat emptor, the numbers used were the ones from the manufacturers or the E & T theoretical.
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