Gents, lately I'm seeing a lot of advertising for so-called "ceramic" paint protection products. They claim to "chemically bond to the paint" to provide protection against scratches, sun, surface contaminants, etc. (and plain old wax chemically bonds to the paint too, but not very strongly). Does anyone have experience with or technical knowledge of these products, and whether the claims are justified? Is this a major step forward from previous silicone polishes? I tend to think that clear film is more protective, if only because it's thicker than some polished-on coating.