Hi looking at a friends engine he has just restored , he primed the fuel tank with super etch primer and then used Wattle enamel spay pack to finish .After a couple of days fitted tank . he filled with petrol and spilled some it has removed the new paint but not the primer. He is a bit disappointed as it means a repaint. This is not an uncommon problem to see at rallies. My question is what is the best paint that can be applied at home to stop this problem . Regards Rudy