I have a boat trailer that is galvanized...I am wanting to paint it with Krylon spray paint.  Would that work, or will the paint fall off?  Should it be primed first?

Also, is this paint usable on aluminum?

Thanks,

Matt

It has to be etched first. Vineger will do that. Might check with you paint supplier, a lot of these new epoxy primers will stick to almost anything, one of them may work. They also make self etching primers, one of them may work on it. A good auto paint supply store would be your best source of info.

Aluminum has to be primed with zinc chromate before painting it.