How to waterproof particle board?
by
Kate N
+3
I have a small particle board plaque with my dogs name on it but I want to place it outside on my gate. How can I waterproof it from the rain?
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nice smooth cover of elmers white glue. dries clear.
I don’t think it will last forever, because you’ll also have UV damage over the years, but I’d put 3 full coats of “Spar Marine” Polyurethane on it.
Something made for boats, I'd say, like a spar urethane or marine urethane.
Spar Marine Polyurethane on it;epoxy resin whole plaque https://www.youtube.com/results?search_query=diyepoxy+resin+dipping+plaques+for+outdoors
Marine strength Poly will do the trick but don't forget to coat both sides.
You can apply acrylic sealant in every edges of the board as well as to the area which will be most probable to be exposed in moisture.