Re: WELLCRAFT 232 eclipse repower and restoration!!!
I have NO experience with bilge painting, but to me it doesn't seem like a good idea.
First, Who cares? It's the bilge, it's not supposed to look nice, and nobody will see it anyway!
Second, for ANY paint to stick well, the area must be totally clean. Not easy in a bilge. If you're just talking about the area around the motor, clean the area with heavy duty stuff, like acetone or LiquidSandpaper. Don't get either stuff on vinyl or any other plastic things. They both melt plastics. If you clean it good enough, you may find that the original gray bilge gel coat is good enough.
Third, no matter what you do, the bilge will always be at least damp. Eventually the new paint will flake off, maybe clogging your bilge pump, drain plug, or just making a mess.
I suppose some epoxy paints might do (Home Depot and others sell epoxy paints for appliances like stoves and refrigerators) - and not be affected by damp or water - but I don't really see the benefits of painting the bilge. Maybe colored gel-coat if you really insist on the idea.
If you really want to paint the bilge, I would check out concrete floor primer. I used that before I painted my basement floors. It's expensive, and smells nasty. But, supposedly paint sticks to it even in wet, damp areas.
Again, I have NO experience with bilge painting. I just know that I'd never do it. I hate doing wrong work that just causes more, nastier work later. Striping bad-idea paint out of a bilge sounds like a job that would suck. So just take my advice as things to consider, and not based on real knowledge of your situation.