I have a 8 year old CAT 277D. Can I polish out the minor scratches on the acrylic door glass?
Sure you can. I just did a Lexan window on a Cat 320C. I used Mark V mystique finessing compound with a 3m 05711 pad, a DeWalt DEP849x @ 1800 rpm. Then, hand applied Novus plastic clean and shine #1 with microfiber. I should have taken a picture. Came out nice.