how to do custom fiberglassing.

This procedure won't help you in your small project, but I read of a neat trick for larger applications.

The builder was making a custom enclosure of some kind in the back of an SUV to hold a bunch of subwoofers, and needed to shape it to fit around fender wells and the like.

He started by making a very rough shape out of chicken wire. Then he refined the shape by covering the chicken wire with aluminum foil, smoothing it until it was approximately the shape he wanted. Next he very carefully applied a coat of fiberglas resin to the aluminum foil and let it set up. That gave him something rigid enough to work with -- fill the low spots with putty, grind down the high spots, etc.. Then, apply the fiberglas cloth and do the finish work.

I thought it was an imaginative approach.

tanstaafl.