Michael,
You might want to check out a product called Durabak. Their website
is at
http://www.nonslipcoating.com/index.htm I am thinking of
painting it on the deck of my steel hulled & decked boat. I do not
have any personal experience with the product, but the website makes
it sound very good. I think that I got the lead on the product from
this list.
Lee Huddleston
s/v Truelove