3M SJ5900 Bumpon protective products molded shapes - colored and clear series are pressure sensitive. Adhesive backed polyurethane products. The urethane is a durable, resilient elastomer. The aggressive, high tack, pressure sensitive adhesive is protected with a release liner making application fast and easy. - 3M Bumpon resilient rollstock products are opaque, colored polyurethane materials produced with aggressive pressure sensitive adhesives. They can be used as feet, stops, spacers and protectors in many applications.