Interesting home uses for WD-40 include exterminating roaches and repelling insects, removing scuffmarks and tea stains as well as winter-proofing boots and shoes. WD-40 can also be used to clean licence plates, prevent snow and ice buildups on windows and to clean and lubricate guitar strings.
WD-40 is a penetrating oil manufactured by the WD-40 Company. The active ingredient in WD-40 is a non-volatile viscous oil that adheres to many different surfaces and materials. This oil is diluted with a volatile hydrocarbon to lower its viscosity that evaporates after being aerosolized. WD-40 is commonly used to remove dirt and to lubricate tools and equipment.