Super NR 38 White is high abrasion soft rubber for use  as a rubber lining for the wear protection of equipment  surfaces. It provides outstanding elongation, tensile  strength and abrasion resistance, giving excellent  performance in both wet and dry applications. It is also ideal for use of ballistic rubber such as target  backing curtains. Provides excellent self-seal  performance. Only a pin-sized hold is left when  penetrated by a bullet.