Do you think the stuff specifically designed for marine use is open cell? I
know it's pricey at $70.00 or so for a qt but I was under the assumption
that it was closed cell and therefore waterproof.


"Wilko" wrote in message
...
Chuck Duchon wrote:

I'm looking for options to flotation bags for a plastic boat.

Will the heat generated by pourable two-part flotation foam damage a
plastic
boat?

That's one problem. The other is the fact that a lot of that stuff is
open cell, meaning that once the surface starts to crack (and it will),
the thing will act like a sponge. That's not good!

What are the advantages/disadvantages to carving a block of minicell to
fit
the boat.

I have put minicell blocks in my Eskimo TopoDuo because the floatation
bags would always get stuck under the alminium footbrace and start to
leak. I also put a wall between the two seat made of minicell. I put a
similar block in front of the footbrace of my Eskimo Salto.

It holds up really well, because it will not soak up water, and it can
withstand some abuse as well. It just weighs more than a floatation bag,
and you can't use that room to stuff gear for multiday trips.

HTH

Wilko


--
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Wilko van den Bergh wilko(a@t dse d.o.t)nl
Eindhoven The Netherlands Europe
Look at the possibilities, don't worry about the limitations.
http://wilko.webzone.ru/