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Default epoxy does so pass water

Do you really believe that kind of storage is what the designer of the boat
recommended in his plans?
Do you believe that kind of storage is intended on ANY boat, to left outside
open side up in the weather.
Do you leave your convertible out with the top down?

For the intended usage of epoxy sheathed plywood boats, the claim of
waterproof is valid. As long as the epoxy is not damaged in such a way as to
allow water to reach the ply, it will stay dry.

Bill

"William R. Watt" wrote in message
...
The owner of an epoxy sheathed plywood (okume marine) kayak was showing me
today the deterioration in the surface ply on the inside of the hull. The
builder had let the boat sit outside over the winter mistakenly assuming
epoxy was impervious to H2O. Snow accumulated in the cockpit, melted,
froze, melted again, and by late spring there was 6" of melt water inside
the hull. The epoxy sheathing on the inside of the hull did not stop the
water from getting at the plywood and starting rot. Accept the claims of
epoxy purveyors and promoters at your peril.
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