"Edwin Pawlowski" wrote in
:


"J. Clarke" wrote in message
Tell that to the guys at Hiroshima Danboru.

They make waterproof cardboard, they don't make cardboard waterproof.

(hint--it's a lot easier when you do it while you're making the
cardboard than it is to add it on afterwards)

--

Afterwards it is either curtain coated or wax dipped, but neither is
easily done by a homeowner. Seafood containers use was dipped.




boatbuilding epoxy will soak into cardboard surfaces well,but getting the
edges or corrugations sealed is another matter.
I guess that would be "water-resistant"....

try System Three,West System,or RAKA epoxies.
I use RAKA.

--
Jim Yanik
jyanik
at
kua.net