On Sat, 28 Mar 1998, Brad Kahler wrote:
> I believe WD-40 was not designed as a rust penatrent, it was designed
> for nasa to be used on the launch pads I believe (someone correct me
> if I'm wrong here!) I used the liquid wrench on my broken bleeder
> screw and it certainly helped.
WD-40 was invented due to a foggy climate. Metal pieces that were stored
outside would rust due to condensation.
WD = Water Displacement
40 = there were 39 failures beforehand
I spray it on my handsaw blades to keep them running well.
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