WoodAndGlue

I am building my first bathroom cabnet and want to keep the wood natural instead of paint. Because of the high moister what is the best sealer I can use any help thanks

icrusbound

I have had good experience with polyurethane. I finished the purpleheart on my poker table with it (about 7 coats), and people set drinks on it soaking wet for 6 hours on end with no ill effects. It is bullet proof.

henrykemp1

The other name of polyurethane is foam spray. It is used for moisture control, air leakage control, sound control and more.

GeorgeC

I think you are confusing the furniture finish product with the insulation product.

G

RussBoyd

When you buy a house full of cabinets in a new home, the vanity is the same as the rest of the cabinets, which is generally lacquer. Moisture and standing water are two different things. My kitchen cabs are dripped on and wiped off with water all the time. No problems at all and they are lacquer. I do know that Poly is a good choice for strength and marine varnish is great for wet. Russ

bzbatl

Hey, if you really want to waterproof it, you can use a marine epoxy resin. That stuff is used for coating boats. You could build a fish tank out of plywood with it.

Might be overkill, but it'll guarantee that cabinet will outlive your house

Leo G

Cabinets generally do not have lacquer on them. Plain Jane (nitrocellulose) lacquer is very water permeable. It will fog when wet. Most cabinets will have a catalyzed conversion varnish on them. Bare minimum a pre-catalyzed lacquer.

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WoodAndGlue

Thanks for all the information all of you posted