Morgan 33 O.I. Perryville
Join Date: Dec 2010
Thanked 200 Times in 178 Posts
Rep Power: 6
Re: Forget about shipping containers, watch out for rocks!
I seriously doubt that running your boat through a raft of pumice would do anything more than dull the gelcoat finish. It's extremely lightweight, not much heavier than a similar size piece of Styrofoam, but it is high abrasive.