Maybe it's because I'm just old jaded and bitter, but these "magic" products just seem too good to be true, although I've never tried them either, so what do I know? That's why I went the blast to metal route in the first place. I just can't help thinking that if they worked so well, that body cancer would all but be eliminated here with the stroke of a brush. I've heard a lot of POR-15 hype too. Y'know if I had a brain... My daily "drive it till it stops" beater is a Mazda that's just starting to rot but spreading fast. I should use it as a test pig for some of these products, (don't care about the car or how it looks anyway) see how they hold up, and report performance.