Quote:
Originally Posted by getty150
WD = W ater D isperser!
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WD-40 is mostly a mix of baby oil (mineral oil), Vaseline (petroleum jelly), and the chemical used inside Decane
Decane:
WD-40 contains an abundance of these alkanes—hydrocarbons that match the formula CxH2x+2, usually in a long, zigzagging chain. This one, C10H22, which is also a common ingredient of gasoline, helps WD-40 remain a liquid at cold temperatures. Decane doesn't freeze until around -21 degrees Fahrenheit.
WD-40 is hygroscopic*and may attract unwanted moisture once the propellant disperses and as anyone who has added some water to mineral oil and shaken can see the cloudiness forming showing mixing of the two, also WD-40 doesn't have enough lubrication properties to be useful on gears or bearings for long term lubrication.
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