What kind of paint works best to paint the styrofoam part in poster boards?

I'm doing a project using the kind of poster boards that have styrofoam between them. I need to paint that part so what kind of paint would work best?What kind of paint works best to paint the styrofoam part in poster boards?
I don't know if the ';foam'; in foam-core board is actually Styrofoam (foamed polystyrene), but if so you definitely won't want to use a paint or sealer that has a petroleum-solvent base (those will clean up with paint thinner, mineral spirits, etc.).





You'll want something water-based (like acrylic paint, poster paint), and probably want something permanent (like acrylic paint) unless you want to seal it separately or it won't ever get wet or abraded. Water-based things clean up with water or soap and water while they're still wet.








HTH,





Diane B.What kind of paint works best to paint the styrofoam part in poster boards?
Any kind works. All you need to do is add multiple layers.