Assuming you have a leak...else why would you want to fill the boat with foam,
be advised that most foam materials will absorb water over time, and it would
be impossible to fix without destroying the boat. Also, most expanding foam
products are VERY expansive and not controllable once deployed....Good luck
Mike

Orig post:Has anyone heard of taking an inflatable boat and filling it with
foam in
place of simply pumping it up with air? Success? Failure? Pros? Cons?
Suggestions??