Join Date: Dec 2010
Location: Maryland - USA
Thanked 48 Times in 44 Posts
Rep Power: 7
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.