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Four things you should never use WD-40 on

WD-40 is a legendary water displacer, but it isn't a universal fix. Using it on the wrong surface can lead to mechanical ...
The year is 1953. Rocket Chemical, a struggling company in San Diego, sets out to create a rust-preventive solvent that can displace water. On the 40th attempt (note: 39 failures), they nailed it.