Here was my first attempt at painting in the mold. Since this was the first part I pulled, I used PVA so I had to feather the edges rather than a hard line. The paint turned out great.
I'm using KlassKote from
www.klasskote.com it is a reasonably priced 2 part epoxy paint (Very similar to the old Hobby Poxy Paints). It is fuel proof without clear, and dries in about 2 hours.