A previous tenant apparently spilled perfume of some sort in one of the cabinets. We've tried to get rid of the residual odor by painting it over with shellac, but it's still pretty strong after 3 years.
There was a thread on here recently that talked about wood cabinets and shellac, but these are made of dense particle board with a veneer of 1/32" white plastic. They seem to be quality construction.
I wonder if anyone has tried Kilz or an acrylic lacquer, or has any comments on those or other finishes for blocking odors.