How Was "WD-40" Named?

From Wikipedia:

It stands for "Water Displacement, 40th attempt." Its first industrial use was by Convair, which used WD-40 to protect the outer skin of the Atlas missile from rust and corrosion. The product first became commercially available on store shelves in San Diego in 1958. WD-40's name comes straight out of inventor Norm Larsen's lab book. Larsen was attempting to concoct a formula to prevent corrosion—a task that is done by displacing water. His persistence paid off when he perfected the formula on his 40th try.

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posted by Staff @ 8:49 AM