WD40's Five basic functions;
CLEANS: WD40 gets under dirt, marks and grease making it easy to wipe them away. It also dissolves adhesives, allowing the easy removal of labels, tape and stickers.
PROTECTS: WD40 protects metal surfaces with corrosion-resistant ingredients to shield against moisture and other corrosive elements.
LUBRICATES: WD40's lubricating ingredients are widely dispersed and hold firmly to all moving parts.
PENETRATES: WD40 loosens rust to metal bonds and frees stuck, frozen or rusted metal parts.
DISPLACES MOISTURE: Because WD40 displaces moisture it quickly dries out electrical systems to eliminate moisture-induced short circuits.