Rustoluem professional (alkyld enamel paint) with some dissociate hardener (like the valspar tractor stuff) is pretty tough stuff, just be wary of fumes, especially if you try and spray it, It'll kill you dead... The other option that was surprisingly inexpensive the past time I did it is to use the old ,standard imron and brush it on... it's tough as nails and I want to say it was inexpensive compared to awlgrip (polyester urethane) or the other newer acrylic urethane based paints... it's holding up very well...

sherwin williams macropoxy also

i used total boat bilge paint turned out great have two years on it looks like new

My bilge is yellow and need to hit a few spots. Can I go to the autoparts store and have them do a color match?