On 05/03/2016 17:14, DaveC wrote:
Cleaning up an old rotary mode switch used for 5v logic levels. It has some
kind of grease in it.


€¦which has always confused me: grease is an insulator (well, the grease in
this switch is€”just tested and its infinite ohms).

I read that dielectric grease is good to keep contacts sealed against the
elements that have high physical pressure (which overcomes any separation
provided by the grease) but that signal and other low voltages grease is
contra-indicated.

What say yall?

Thanks.


Can we summarise this thread by saying -
Any grease is better than no grease, in low voltage, wiped contact
situations, as long as the grease doesn't go hard with age or otherwise
degrade or corrode the contacts itself