WD-40 Logo and Tagline

WD-40 is an American brand and the trademark of a penetrating oil manufactured by the WD-40 Company based in San Diego, California. The formula for WD-40 was invented for the Rocket Chemical Company as early as 1953 before it evolved into the WD-40 Company. WD-40 became available as a commercial product in 1961. It acts as a lubricant, rust preventive, penetrant and moisture displacer.

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