Also Sprach Lawrence James :
It is closed cell, only the exposed "broken" cells will hold any water.

I guarantee that the water will eventually penetrate deeper than that. I
did some renovations on my 20 yr old boat last year, and found that in
some spots, water penetrated 2-3 inches into the "closed cell" foam.

You can paint it with just about any latex if you want to.

Outdoor latex should work, but I used a sealant designed to be applied to
concrete basement walls to treat some areas of foam which I had to trim.

Dan


--
I am not part of the problem. I am a Republican.

-- Dan Quayle