Jennifer wrote:
I recently installed a nice bathroom sink vanity that is constructed
with particle board. To protect the board and guard against
under-the-sink damage from leaks, mold, bathroom humidity, etc, I am
thinking of using (oil based) polyurethane on the interior, which is not
painted. Is this a good idea? Are there reasons why this should not be
done?

Thanks!



You used 'nice' and 'particle board' in the same sentence. There is no
such thing. :^/

But since you have it, and it is installed- painting the interior is
pretty pointless. Under certain circumstances, it could make things
worse, by trapping water in there from the edges (mainly against floor)
that you can't paint, and that soak up water like a sponge. BTW, I have
never seen even a particle board vanity with NOTHING on the inside
surfaces- they usually at least put that glorified contact paper stuff
in there.

The way to get the most life out of this will be, to NEVER let water sit
on the floor, and to buy a shallow plastic tray/washtub of some sort in
the housewares aisle, and keep that under the sink trap/faucet
connections in case of leaks. Good idea anyway, for holding cleaning
supplies or whatver, since if those leak, they will eat right through
the floor of the cabinet. Exposed particle board can suck moisture right
out of the air, so always use the exhaust fan when showering and such.

--
aem sends...