Create a barrier against damaging salt and moisture with Ultimate Corrosion Blocker with PTEF.Protect engine blocks, nuts and bolts, trim and tilt rams, trailers, anchor chains and more with this easy-to apply spray that forms a protective PTEF polymer barrier against damaging salt and moisture. Will not harm painted surfaces or wiring. Safe for use on all marine metal surfaces.Key FeaturesProtects equipment and gear against salt and moistureSafe for painted surfaces and wiringSafe for all metal surfacesContains PTEF22oz.