When you say uhmb, do you mean uhmw (ultra high molecular weight) polyproplyene? This is the stuff (normally white) that is used for industrial cutting boards and such... burly stuff. I work for a snowboard company, lots of ski and snowboard companies use this stuff for the bases on their skis/snowboards... if you could get it in a color other than white, it might be great for the bottom of a drift boat... maybe white would work, too.

-N.
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