if POR-15's tank liners are anything like their paints, it will be most excellent, my dad used to restore cars, and he used it on every car he ever restored, their paint is badass shit, once it dries, nothing short of mechanical scraping will get it off, this is no kidding, he had spilled some on the garage floor, and 3 years later he went to repaint the floor, and had to use a hammer and chisel to try and pop the old paint off the concrete, and it wound up taking a nice sized chunk of floor along with it.... as a matter of fact, this winter i was gonna take my gas tank off and put a liner on the inside, and spray a coat of clear POR-15 over the outside for some protection