>Typically, acrylic has better UV stability than polycarbonate. Polycarb will yellow
>to a higher degree than acrylic over time and with sunlight exposure.
>There are UV inhibitors that you can add to the polycarb mixture to improve it's
>stability though. Hopefully you bought the stabilized stuff.
Has this been your personal experience with Lexan or other Polycarbonate ?
I made a Polycarb rear window for my pickup shell and it was several years
before it yellowed and then just a little, so I didn't reckon my $10.00 "scrap"
sheet of Polycarb needed any additional help. If severe yellowing occurs down
the road, I'll buy another $10.00 sheet and spend an hour making a new
windscreen
Tom