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WD 40 is Water Displacement 40th attempt. wd40 was originally created to prevent corrosion on the tips of the Military missiles while in storage. They tried 39 times before becoming successful on the 40th attempt, hence, wd-40.

WD40 is a spray lubricant that does a lot of other things. Water Dispersant formula 40

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Erin Hand

Lvl 10
2y ago

What else can I help you with?