A few years ago, I noticed that the chip guard was starting to crack on the rocker panels on my 87 GN. I was just under my car today, and noticed that the paint is starting to lift where the cracks are. I'm just wondering what paint I can use if I do this myself. I dont want to take my car to a body shop and have them screw anything up or get the interior dirty. My car only has 11,000 miles on it, so i am very careful. Would I be crazy to use something from a can or gloss black POR 15? Just looking for ideas. I dont have a paint gun.