Loctite EA 3478 is a 2-part, ferro-silicon filled epoxy resin system. It is extremely resistant to corrosion, chemical attack and abrasion. It is ideal for restoring parts worn by mechanical and/or corrosion impact. Helps to restore tolerances to worn shafts, repairing worn keyways and damaged housings, filling pitted surfaces in worn machinery and restoring fit to bearing housings.