Designed for use in 1/4 sheet palm sanders and is ideal for all types of wood, metal, and plastics. Features StickFast backing, an industrial-grade pressure sensitive adhesive backing, for a strong and secure bond. Premium aluminum oxide blend designed for fast material removal and long sanding life. Clog-SHIELD, a high performance stearate coating, reduces pitch build-up and clogging for maximum productivity. ENDURA-BOND, a specialized high strength resin, provides superior grit-to-backing bond for extreme durability.