one of the brands of the paint on bed liner material is called "hurculiner" (not sure on the spelling) my father painted the bottom of his drift boat with it, and man is that stuff tough! i watched him and his buddy drag the boat up a steep bank and onto a gravel road and it didn't even scatch that sutff! I've seen it painted on the inside of several boats (wood boats) and they claim it is a great ! Hope this helps.
chum