Size:1-Pack Because WD40 displaces moisture, it quickly dries out electrical systems to eliminate moisture-induced short circuits. WD-40 protects metal surfaces with corrosion-resistant ingredients to shield against moisture and other corrosive elements. WD-40 loosens rust-to-metal bonds and frees stuck, frozen or rusted metal parts. WD-40 gets under grease, grime, and gunk. WD-40 non-aerosol formulas also dissolve adhesives, allowing easy removal of labels, tape, stickers, and excess bonding material. WD-40's lubricating ingredients are widely dispersed and hold firmly to all moving parts.