Redoing Boat floor, Insulation

[moemoe]

Hi Guys, I am helping a friend redo a Starcraft Islander, and we were redoing the floor, We were looking at putting some marine spray foam back in, any suggestions on brand to use? Can I use regular outodoor (Tuff stuff) expanding foam or will this become waterlogged? thanks Moe

[POLLIWOGG]

Any foam will soak up water so keep the bottom of the boat clear to drain water and spray your closed cell foam where it will stay dry, maybe the underside of the floor boards.

[moemoe]

Never thought of that, Thanks!