3M makes a pruduct called "Trizac" it works great if you want to wet sand your car, but it doesnt use water ( Just enough that the pad is moist) You use it on a DA ( the grit is an ultra fina 2000 that is self sharpening little pyramids) Anyways...the 3M guy did a demo for our class and showed us what this stuff does to old hazy tail lights. First use the DA with the Trizac, and then a foam pad with the trizac polish, better than new and very quick.....