I did a lot of wire wheeling, degreasing, and metal prep on my floors. Then gave POR15 a go. I think it turned out good ...for now. When its time to fix things up right and I have learned a lot more, I can go back and cut out the bad spots and propetly patch. For now, on the largest hole, I simply coated a piece of metal with the POR and between coats on the floor, screwed it down, and added another coat to everything. Right of wrong, I think I've stopped my floor pan rust for now.