A good primer is a must, but before that surface prep. 120 grit on the fiberglass, the first coat of primer, 400 grit, and another coat of primer, wet sand 800-1200 grit, primer, wet sand. Clean the surface well, and handle the fiberglass with latex gloves on.
Paint a light tack coat, another heavier coat as per the paint directions, wet sand, clean and repeat.
A good UV protection clear coat would work too.
That's how I did my last fiberglass painting project and it turned out well. There may be a better way.
|