This foam board is ideal for hobbies, crafts, signs, presentations, framing, mounting, screen printing, and laminating. It’s great for structural applications such as displays, exhibits, models, and proto-types. The brilliantly colored, clay-coated surface paper is permanently bonded to both front and back of the foam board. Water based, non-toxic inks create smooth consistent colors. The core is resilient polystyrene which resists denting and crushing. It’s strong, rigid, and amazingly lightweight. CFC free. Easy to cut. Colored on one side, white on the other. Foam board measures (5 mm) thick.