RE: isenglas I'll take a stab at this and know that someone will correct me or expand on this if I'm wrong or incomplete. When I was growing up, isenglas was the name given to the material in the windows in stoves and furnaces and other areas that required the ability to see something through. Made of mica and very brittle but highly heat resistant and translucent, almost transparent sometimes. That name was also used, I think inaccurately, to apply to any non-glass transparent material like the soft windows in convertibles. Later the generic term plastic would replace that kind of use, just as later generic use of the word Plexiglas applied to any transparent plastic material that came along after Plexiglas. This is my recollection of the use of the term. And I haven't heard anyone refer to 'isenglas' for many years. Footnote Just did a search, found this under alternate spellings in Wikipedia *Isinglass should not be confused with Eisenglass which is made from sheets of mica and was once commonly used as a heat-resistant substitute for glass<http://en.wikipedia.org/wiki/Glass> .*: * * |
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