asad137

asad137 t1_iu5lbt5 wrote

>Torsion springs are EXTREMELY dangerous. They fail in unpredictable ways and have a lot of potential energy wound up in them.

While this is true, they are also trapped by the rod passing through the center. So the only way to get a piece flying off is if less than a 360-degree arc of the spring breaks off.

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asad137 t1_iu58duo wrote

It's both. It's not particularly great at either, though. There are better penetrating oils and better lubricants.

Also it's kind of amusing to see "WD-40 is a lubricant", since in lots of discussions regarding WD-40 people make the (also erroneous) claim that WD-40 is a solvent, not a lubricant.

WD-40 is a mixture of solvents and lubricants. The solvents thin the oils and help it penetrate, and when the solvents evaporate what's left is the oils.

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