Page 1 Cone and Gyratory Crushers, Water Flush Systems, Grinding Mills, Locks and Dams LOCTITE Nordbak Crusher Backing Materials Page 2 | LOCTITE Nordbak Crusher Backing Materials LOCTITE Nordbak Crusher Backing Materials PC Nordbak Backing Compound solids epoxy compound for use in water flush systems and protecting backing wear plates under the most demanding conditions .