: Thanks for the advice. I have 2 coats on the bottom and 1 on the
: top so far. I am just going to hope for the best, as I need to
: take the boat out this weekend.

Porch paint is tough stuff, I used the water-based variety for the inside of my canoe and several seasons of paddling has'nt left a mark. My concern about using it on fabric would be flexibility, although I guess stretching isn't so much of a problem with poly as with nylon. I suggest you make sure you get the test piece set completely first, then try bending, rolling and creasing it to see if any of the paint flakes.