Features StickFast backing, an industrial-grade pressure sensitive adhesive backing for a strong and secure bond. Premium ceramic blend, a superior quality formulation designed for fast material removal and long sanding life. Clog-SHIELD, a proprietary blend of grinding agents, reduces pitch build-up and clogging. ENDURA-BOND, grit-to-backing bond, provides sanding discs with longer life and extreme durability. For orbital and dual action sanders in wood, metal, and plastics.