[TowerTalk] WD-40

[James Wolf]

One of the best auto restoration and repair shops around here recommends
spraying WD-40 up into door panels to curtail rust.

Jim - KR9U

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wd-40 was developed for protecting the outer skin of the Atlas ICBM from
corrosion.  it does provide a protective film that remains even in high
temperatures.
the wd stands for water displacer, 40 is just the batch number from the test
lab that satisfied the military requirements to coat the missile over a wide
temperature range.  it was not designed to remove or break rusted joints,
though it does penetrate fairly well and does provide some lubrication it
doesn't have the rust
busting and penetrant power of fluids designed for that job.