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What does the “WD” in WD-40 stand for?

April 26, 2017Education Reference stand Trivia wd wd-40

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What does the “WD” in WD-40 stand for?

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What does WD-40® stand for? WD-40 literally stands for Water Displacement, 40th attempt. That’s the name straight out of the lab book used by the chemist who developed WD-40 back in 1953. The chemist, Norm Larsen, was attempting to concoct a formula to prevent corrosion-a task which is done by displacing water. Norm’s persistence paid off when he perfected the formula on his 40th try.