Protect metals and tools from the salt air and life in a wet locker. Not all metals on a boat are stainless steel and corrosion resistant. And even stainless steel, in the certain conditions, will corrode. WD-40 Specialist Long-Term Corrosion Inhibitor adds corrosion protection to any metal. Ideal on tools to maintain functionality and prevent rust stains they can leave in lockers and on gelcoat. Can be used on hardware fittings and parts that use lower grade stainless steel or mild steel. Long Term Corrosion Inhibitor is formulated to adhere to metals and provide a protective barrier for up to a year for exterior applications and two years for interior applications. The aerosol bottle with spray tube allows controlled application. Manage corrosion by applying a long term corrosion inhibitor. Key Features Provides corrosion protection to ferrous and non-ferrous metals Great on tools to maintain functionality Helps to prevent rust stains in lockers caused by constant residual moisture Includes spray tube for focus application right where it is neededVOC compliant in 50 states .