Why is it important to use quality EPDM rubber seals on your truck?
Some Truck Caps rest on an aluminum or steel frame that is cushioned by less than 1/4" of PVC foam tape sits on the top rails of your truck. In a very short time, the weight of the cap compresses the PVC foam tape down to nothing and the vibrations of the cap frame begins to scratch the painted surface of your rails. Moisture will get underneath and begin to rust the top surface of your rails. Using ESI's rubber seals on your truck cap you can prevent vibrations and rust or damage to your rails and provide a better moisture barrier seal.