The Finewud PVC Foam Board sheets are ideal hobby and maker projects, crafts, modeling, and even decorative interior home improvement. PVC foam board is a lightweight rigid material used primarily in the manufacture of signs and displays. It is considered robust for outdoor use, being immune to rain and resistant to wind and sunlight. It's main ingredients inlcude PVC resin and special additives like foaming agent, anti-aging agent, colorant.etc. The Finewud PVC Foam Board is very efficient and made for us ein various industries.