The polyurea in the spray-on bed liner is an elastomer which holds fragments together when applied to the inside of a wall of cementations, wood, and/or metal. It has been installed in some high-profile buildings. The most famous is the United States Pentagon. The spray-on coating product was applied to the inside surface of the exterior walls of the building. If it's good enough for the Pentagon, it will be absolutely amazing in the bed of your truck.