Quote:
Originally Posted by Nux
I realize this is an old thread, but did some of you guys actually fabricate a rear lexan window? And if so: how did you do it?
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I am not an expert, but have worked with Lexan (polycarbinate) and Plexigass (acrylic)
Heat forming acrylic will need about 275 degs to get it pliable. Polycarbinate, on the other hand needs about 375 degrees.
Polycarbinate will cold bend to a certain degree, it will not crack easily or shatter.
Acrylic is much more brittle and can crack or shatter if bent cold.
Problem with trying to cold form the rear targa window form polycarbinate is you will have to screw it down securly to hold it in place. The other issue is the rear targa window has a slight compound curve which will not be replicated with a cold bend.
For a race car or hot rod I would just get some polycarbinate sheet 3/16" thick and screw it in place.
If you want to pass it off as OE, it could get expensive.