Foam board is composed of sheets of extruded polystyrene foam which have been laminated on both sides with white Clay coat paper liners. The plastic foam gives the board its unique lightness which is one of the properties that makes Foam board so useful as a mounting board, backing board, and display material. Satin-smooth surface - no corrugations, no texture, no seams. The thick board cuts effortlessly with mat knives, razors, slitters, fine-toothed band saws, and circular table saws. Unlimited uses - picture framing, displays, floral design, theatre props, stage sets, hobby and craft constructions, posters, picture frames, and much more. Accepts many techniques - die cutting, embossing, screen printing, painting, laminating, dry mounting, vacuum mounting, cold mounting, and printing.