En el artículo , Ian Jackson
escribió:

On the occasions when I've used WD40 on pots, fan bearings etc, it
hasn't caused any subsequent problems.

"proper" contact cleaner works better and doesn't pick up contaminants
like WD40 does.

But, of course, you must use it
vary sparingly.

Indeed, and at the force it comes out of the can, that can be tricky.
Spraying it into a small snootiness and using the tip of a screwdriver
to transfer it works. But for pots, switches, etc., it's still better
to use contact cleaner made for the job.

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