Hi Stefan! You cannot paint over RPM. It will repel the paint and it will not adhere to the metal surface. You can use it over your painted parts for added protection. I have someone who is using it on their outdoor lights around their swimming pool. A medical company is using it on their manufacturing equipment. The Construction Industry has expressed interest in RPM for keeping their tools protected during their off season.

I have also developed a product (similar but different than RPM) that is used to preserve the natural metal finish on Guns. ("AMMO" - Avoid Menacing Metal Oxidation) The Gun Collectors have started to show an interest in a product that keeps their metal rust free but not oily. People are coming up with applications that we never dreamed of, both automotive and non-automotive in nature.