WD-40 SPECIALIST LONG TERM CORROSION INHIBITOR, 10.5 OZ.WD-40 Specialist Long Term Corrosion Inhibitor | Long-lasting protection | Blocks rust and corrosion | Protective coating and lubricant for metals | Ideal to use on equipment before storing Ideal for use on tools, locks, propane tanks, hinges, chains, cables, metal doors, car parts and any untreated metal or iron exposed to the elements or damp storage conditions. Metal-seeking Vapor Corrosion Inhibitors (VCIs) seal & protect metals from the air and moisture that can cause rust. VCIs continue to work, even if some of the sprayed surface gets rubbed off, re-sealing the vulnerable surface.