Choose the right type of clear plastic?

[Jon Cole]

Choose the right type of clear plastic? I made a clear roof insert cut from a plastic OJ bottle. First, on two rounded corners there was a slight delamination effect, very small, but still not right.

Also, when I tried to use NOVUS 3 to clean up minor scratches, it made it worse. I switched to a 3-part polishing stick, starting w/ middle grit, again, made it worse. The juice bottle plastic is more flexible than model kit clear windows.

Any ideas?

[Jantrix]

The plastic from bottle and blister packs is seriously soft stuff. Both Plastrust and Evergreen both sell clear sheet stock. That's where I go for it. However I can seriously dig trying the low buck method first. I used blister pack material for my '34 pick-up.