Quote Originally Posted by Kevykev View Post
Word, The principle is to sand past the top layer of the BS clearcoat manufacturers apply.
Good Stuff. Bunch of ways to get good results.
Ahh the factory UV coating. Ya, if there are chips in that, you want to remove that whole coat through wetsanding.

Now i dont know the validity to this, but ive had a few people tell me to avoid metal polish on plastic since some of the chemicals in the metal polish will actually increase the likeliness of them to yellow.

When I do headlights, i normally use 3000 grit wet sanding, followed by hitting it with meguiars 105 polish on a 4" lake country pad, topped off with a plastic polish by hand, then a wax.