LOCTITE^® SF 7800 is a grey, solvent-based, zinc and aluminum resin spray for protecting ferrous metals against corrosion. It’s typically used for touching up metal parts after welding, providing long-term protection of metal assemblies and restoring protection to repaired galvanized parts, such as crash barriers, tubes, flanges, tanks and panels. It’s also suitable for restoring protection to repaired galvanized parts. It cures at room temperature by solvent evaporation.