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Unread 03-07-2009, 12:58 AM   #16
MFC
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Merick, Now you've done it.
Just to set the record straight about WD-40.
It was developed by the US government for use in missile silos.
WD= water displacement
40= formula #40
Main ingredient= fish oil... which is why it hardens over time as the solvents dissapate. It's actually a great preservative, but when used on firearms it needs to be applied frequently , which dissolves the old oil and adds fresh solvents/oil.
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