Bea Essor wrote:
Several years ago, I made closet shelves out of 3/4" particle board.
To smooth out the edges I used dry wall compound for a filler. Then I
painted them.
They are still as good as ever. Dry wall compound is cheap dries
pretty fast and is easy to sand.

Ingenious idea Bea, thanks. That would also smooth it out really well, and
I still have a big box of the stuff.

Jon