In article , The Other Mike
writes
On Tue, 07 Feb 2012 14:52:21 +0000, wrote:

I've had a Rawlplug foam gun for a couple of months and only got
around to using it properly today (I'd ****ed around with one
previously, but not for long).
By 'eck, it will pay for itself in the long term - I will have a need
for many cans of foam over the next year or two and the gun makes the
bead of foam so much more controllable and as big/small as you like -
also puts it exactly where you want it.

So presumably with that level of control you could add buoyancy to a
canoe with perfect accuracy?

Sounds tongue in cheek but watch out, aerosol foam is not closed cell so
will absorb water, dramatically affecting its boyancy ;-).

Boyancy foam needs to be 2 part closed cell which, as you pointed out,
is er, less controllable.
--
fred
it's a ba-na-na . . . .