Checkout http://www.ptone.com/boatbuilding2002/ for a one off foam
playboat

Paul
Melbourne

On 19 Jul 2004 15:07:45 GMT, (William R.
Watt) wrote:

"Reynaud" ) writes:
Has anyone here ever built an kayak or canoe from polystyrene coated with
cloth and Epoxy? I'm in the process now and find that even one layer of
cloth and epoxy

It has been discussed here before, also foam core plywood construction. I
looked at for light weight construction but from information posted here
calcualted that it would be heavier than plywood, ie no weight savings. It
is not so good for small boats but becomes practical as the size of the
boat gets bigger.

There used to be photos on the Internet of a rough experiment made of rigid
foam board foam covered with thin plywood to protect the foam.

There was also a small sail board made of foam with no exterior covering
on the market. It might be possible for a DIY'er to make a mould and pour
in liguid foam to make something like that.