Horn Plastics carries a variety of slick plastic sheets for truck beds, hoppers, and bins in a wide range of properties and prices. UHMW & HDPE PLASTIC SHEETS. Whether you are seeit a new abrasive-resistant plastic that is durable and long-lasting, UHMW and HDPE plastic sheets are ideal for a multitude of operations. UHMW and HDPE plastic sheets perform well in high-stress applications.