Painting a Fiberglass Trailer Experiences

When I painted my trailer I used Easypoxy single part polyurethane. The
paint has held up well for two years now. No need to spray, use a mask,
etc.

Roll it on then cross brush to even out and get rid of the bubbles. Google
for "paint tipping."

For those of you not addicted to the "Do it yourself" approach, I
recently had my 1984 Cobra (aluminum) trailer painted by Miracle Auto
Paint. The trailer paint was in terrible condition, flaking and pitted
from living under a tree for several years. Miracle did the whole job
for $1200 including prep, epoxy undercoat, acrylic auto paint, and
detailing.

The trailer looks fantastic, and while I would not want to make an
andorsement, I had my Volvo painted by them about three years ago, and
the paint job has held up very well.

Post-paint waxing is important.

My Cobra fiberglass top needs work too. Sometime in it's past someone
painted it with a poor paint and it is just turning to dust!

Anyway, I need to sand this old s... off.

Any recommendations regarding type of sander and grade of sand paper? I
am not much of a craftsman and do not want to damage, groove, or dent
the top.

Thanks