I use 2=3 coats of a craft sealer called Mod Podge for
sealing foam and wood. It is a water based polyester
product that can be brushed, sprayed or poured. It dries
quickly and , like polyurethane varnish, it is fuel proof -
http://www.dickblick.com/zz029/16/
. They have an outdoor
version available, but I have always used the matte finish
version.
As for foam, I use the 2" white styrofoam building
insulation from Home Depot. I use a band saw with a metal
cutting blade, a hot wire, and/or sandpaper to cut the foam
to fit into every unused open space under the deck. The Mod
Podge seals the foam and holds it in place. For insurance,
I may use balsa sheeting to close off the foamed areas, all
sealed with the Mod Podge. You can also use brown wrapping
paper and Mod Podge in the same way one would laminate with
fiberglass cloth and resin to cover the foam and/or make
bulkheads to seal the foam from access by fuel or water.
Hope this helps.
Randy
"sea hawk westoz"
<sea.hawk.westoz.3b6pm9@[EMAIL PROTECTED]
>
wrote in message
news:sea.hawk.westoz.3b6pm9@[EMAIL PROTECTED]
>
> I'm looking for the best foam to use for flotation in the
> hull.
> i was looking at using expanda foam that you get from
> hardware shops .
> has ennone used this befor and dose it work. as ive just
> used styrafoam
> blocks and lenths of round pool noodles . but dont think
> there is anough
> to keep the hulls out of the water .( with the weight of
> motor pipe and
> fuel,etc) .
> (as a mates boat sunk and thay had foam and pool noodle
> under there
> deck and it still sank to to a watery grave. as the lake
> we run on is
> over 18 ft deep in some spots).
>
> and the Styrofoam don`t like fuel. ( it melts )
>
>
> --
> sea hawk westoz
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