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BK7 Glass

Started by kwpw, 03/08/2005 04:17PM
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Posted 03/08/2005 04:17PM Opening Post
Paul Weiler
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Join Date: Jan 2002

Location: Biglerville PA, US

Posts: 18

Anyone ever use BK7 glass?
Hows does it compare to plate glass or pyrex
Thanks
Paul
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Posted 03/09/2005 05:21PM #1
Kurt King
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Join Date: Jan 2003

Location: Austin TX, US

Posts: 56

Hello Paul, BK-7 is much closer to plate glass in it grinding/polishing properties than Pyrex and I would rate the thermal expansion figures more comparable to
plate than Pyrex as well. These thoughts are from personal experience with all 3.
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