Gatorfoam consists of a lightweight, durable core of extruded polystyrene foam bonded on both sides to patented Luxcell® facings. These are wood-fiber veneers impregnated with a proprietary resin for integrity, durability and moisture resistance. Gatorfoam is ideal for both indoor and outdoor uses (Black Gatorfoam is not recommended for exterior usage). Weatherproof, lightweight-yet-durable signs may be constructed from Gatorfoam.