I recently purchased a used car and I've been trying to restore the paint. Unfortunately I have my work set out for me since it is a black paintjob with quite a few swirls in it. After washing I noticed that there is some kind of contamination on the paint surface, in the form of tiny white specks. I tried claybar and while it picked up dirt and the other grime it did not remove the white specks. They are stuck on there pretty well and I'm not quite sure how to get it off. I have tried rubbing compound and it does work, but I'd like to check if theres a better way to go about it?