Bainbridge® Clay Coat foam core board is a high-quality paper-faced mounting board with a polystyrene foam center and a smooth, bright white paper with a moisture resistant clay-coating. An economical choice of frame backing board to support your artwork within the frame. Warp and dent resistant, and available in space-saving 1/8” thickness, our Bainbridge board comes in customizable foam board sizes. Manufactured with pride in Bridgeview, Illinois. Non-archival and not recommended for original drawings or watercolor paintings. Cannot be used with canvas floater frames.