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What does the WD in WD 40 stand for?

Updated: 4/28/2022
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13y ago

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In 1953, a fledgling company called Rocket Chemical Company and its staff of three set out to create a line of rust-prevention solvents and degreasers for use in the aerospace industry, in a small lab in San Diego, California.

It took them 40 attempts to get the water displacing formula worked out. But they must have been really good, because the original secret formula for WD-40®-which stands for Water Displacement perfected on the 40th try-is still in use today.

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Q: What does the WD in WD 40 stand for?
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What is WD-40 stand for?

Water Displacement - 40th Attempt


What does DW-40 stand for?

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Water Displacer


What does WD-40stand for?

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