I am by no means an authority on this but I think, if possible the best solution is to buff out the gel coat. Having said that, last year I decided to paint my boat. After much research I decided to try http://www.rustoleum.com/product-catalog/consumer-brands/marine-coatings/topside-paint You can brush it, roll it or spray it. I sprayed it and was pretty happy with the results. I've also used Basecoat/Clearcoat automotive paint on fiberglass boats but eventually the clear started to peal off and the stuff is pretty toxic.