Bobert, go to the source: Google the floor-leveler manufacturer, go to their site (if they have one) and ask about paintability.

Or suppose the brand name is "Florlevel", try Googling "Florlevel paintable OR paintability OR painting".

If you bought it from a big merchandiser like Lowe's or the like, they often have very knowledgeable people who could tell you.

Dave Oesterreich