PS FOAM BOARD

-Foam board, also known as foam core, is a backing material widely used in framing art. It is made of a type of Styrofoam covered on both sides with paper so that the foam is the core of the sandwich.
-Foam board is very lightweight as well as strong, which makes it ideal for framing large works of art or posters, since it adds so little weight to the overall piece. Its rigidity stabilizes paper art.