Hello, while I was working under my car the other day I noticed a few spots where the epoxy had worn off the frame. While talking to a mechanic I asked him what I should use to prevent rust. He said there is a special spray that comes in a can that is textured made for frames. Has anyone ever used this? He said that spray-in bedliner works the best. Thats what he used on his truck frame and it looks great. He said its available in spray bottles at most automotive stores. has anyone ever heard of this? If anyone has any other suggestions please tell me. how should I go about preping before painting? just sand and paint? Thanks in advance, David, vin#2496-needs