DuraPlate is a proven structural composite material that consists of two external skins thermally bonded to a high-density polyethylene core. It was originally developed in 1996 for over-the-road trailers. The DuraPlate composite trailer is the leader in the North American trucking industry, with over 350,000 on the road today. At the heart of the DuraPlate panel is a structure that is extremely strong and energy absorbent, resulting in durability, impact resistance and unsurpassed aesthetic appeal.