"Sam" wrote in message
...
I am thinking of injecting the expanding foam type product into my
underfloor flotation tank, the boat is a 5m Nesscraft. Has anyone done
this
or even thought about doing it? Would it be a wise move?


Run a few tests on the foam you intend to use before you install it. Some
of this type of foam is a "closed cell" foam and is not water soluble.
Others are "open cell" which soaks up water like a sponge, and others will
dissolve in water.

Rod