3M Bumpon protective products molded shapes - colored and clear series are pressure sensitive. The urethane is a durable, resilient elastomer. Adhesive backed polyurethane products. The aggressive, high tack, pressure sensitive adhesive is protected with a release liner making application fast and easy. - 3M Bumpon protective product SJ5300 is a self-adhesive rubber bumper designed to be used as feet, stops and spacers. Long aging resiliency, will not crack or harden. Excellent skid resistance. Abrasion resistance.