closed cell foam in a can?

[Shanaly]

anyone know of an alternative to PU foam in a can which is we think open cell? i am using it to reinforce and water proof a double walled ply deckhouse!

[Matt Johnson]

Try this:

http://www.amazon.com/Touch-Foam-Sys...ef=pd_sim_hi_1

While it's not a can, this may work for you.

Matt

[capn_billl]

polystyrene is closed cell. If it is compressable it is open cell. The spray in PU foam can be bagged to stop water instrusion.