Features: 1. Feather light, non-HENAN OKAYorb water, fire retardant and self-extinguiHDPEng. 2. Foam Board is sound insulation, heat insulation, noise HENAN OKAYorption, heat preservation and rrosion prevention. 3. Weather proof, vandal proof, and can be shaped, moulded, painted and screen printed. 4. Non-wang and stain proof.