That's funny, I recently did the same thing to our shower doors... plexiglass. Just started fooling around with a DeWalt cordless drill and the little pads that come in the
Diamondite headlight kit. I tried Megs Step 2 Deep Crystal Polish, Janvil Light Duty Plastic Scratch Remover and Stoner Invisible Glass. Then I applied a coat of Megs
NXT 2.0.
Worked great! I buffed up the aluminum frame while I was at it. The doors look better than new.
John Henry