Marine carpet has a sealed back. It might wear better than indoor/outdoor.
You get what you pay for. I've seen plenty pontoons with indoor/outdoor.
It is usually glued everywhere to prevent water from collecting betwen the
carpet and floor. Thompsons is not even a very good deck sealer, nevermind
using it as a marine sealer. Two part eposy is the best but expensive. A
polyester resin is not a bad second choice.

"tcoop" wrote in message
.. .
What is the main difference between marine grade carpet and indoor/outdoor
carpet? I have a pontoon and wondering why I couldn't use outdoor carpet.
I
can seem to find more colors in the outdoor carpet than I can in marine
grade. Anyone have any tips for laying down the carpet no matter which
type
I use?
I was thinking about using a couple coats of a water sealer such as
Thompsons, and then apply the carpet over that. Is the best carpet the
kind
with a rubber on the back or a webbing type back and should I glue the
entire piece down or just in areas?
Thanks for the advice,
Tom