Waterproofing plywood: Poly, epoxy....?
On Jul 7, 4:52*pm, "Existential Angst" wrote:
Awl --
I'm looking to make a 4 ft x 6 ft base for some apparatus, out of 1/2"
plywood, for outdoor use.
It works well indoors, but I'm wondering if I can make it *truly* waterproof
for outdoor use, with enough coats of poly, epoxy, or some clear plastic
coating-type finishes I've seen.
Not that familiar with wood/coatings, beyond having done my floors with a
water-based poly+catalyst, with mixed results.
Also, I know there's HD 1/2 plywood, which you can break across your knee,
and there is real 1/2 ply, from a lumber yard. *Are there even
harder/stiffer grades? *I'm not necessarily looking for furniture-grade
plywood, but maybe that is indeed the stiffest. *Cost, bang for the buck is
a factor.
Maybe other "engineered products"?
Appreciate all input.
--
EA
Start off with MDO maybe? With just a couple of coats of marine
enamel, signs made that way can last 20-years+
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