painting on fiberglass

I want to paint the name of my trailer on my little guy hatch. I'm an artist so painting the lettering on isn't an issue but I'm used to painting on paper and canvas. The question I have is what will work best on fiberglass? And is there any special treatment or finish coating afterwards that I'll need to do. Basically I'm asking everything that is needed accept how to paint. Things like the type of paint, preparation etc. Any trailer detailers out there?
Thanks in advance
Thanks in advance