Leon wrote:
Opaque?

Sand smooth the surface, prime and again lightly sand then finish
off you in your choice of color with an Alkyd Oil based paint. Use
a 1" diameter "closed foam roller" for smooth results.


I've done the same with acrylic/latex paint and found it easy to run
sandpaper over any rough spots. These surfaces can be washed and even
scrubbed after a couple of weeks. If you want to be really fussy you can
still add a layer or two of waterbased polyurethane.

Josie