... 3.for printing or sticking Specification PS Foam board :light weight, durability, flatness, rigidity, structural strength and moisture ... paper. It is also flatness, light-weight, rigid and durable, water proof, moisture proof, good heat preservation, sound insulation ... colorfully. Features:1. Smooth, Light-weight.2. sound insulation, heat insulation .3. weather proof.4. easy to clean and maintain ...