hahah Joe, funny you found that pic of me...

Thats almost all sanded gelcoat in that pic. We were refinishing some hulls and had to fill in several deep gouges in the bottoms from 20 knot beach landings.

While its probably not the best for you, gelcoat aint nearly as nasty as fiberglass dust. The glass dust can cause your lungs to bleed if you aren't careful.