Re: Anti slip materials.
It might help to understand the type of boat this is being considered for, and the type of boating you do. There is mention of 'durable'. Have you used something else in the past with less than expected results? How 'durable' are you looking for? The reason I ask is, what I'd recommend for a ski boat is different than what I'd recommend for a fishing boat. What I'd recommend for a tinny, will probably be different than an offshore battlewagaon. Just a few thoughts.
Oh and what do you have for non-skid now? anything?