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How did WD-40 get its name?

Updated: 9/13/2023
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8y ago

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WD-40 actually stands for "Water Displacement, 40th attempt" which chemist Norm Larsen wrote in his lab book in 1953. It took him 40 tries to develop a formula that would effectively prevent corrosion. Corrosion is prevented by displacing water.

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8y ago
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Q: How did WD-40 get its name?
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