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Old 11-08-2021, 02:15 PM   #5
Civicsman
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Join Date: Jul 2007
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FYI, dielectric grease is not a contact cleaner. It is simply a type of grease that has a high resistance to conducting electricity, and sometimes it has good thermal conductivity (for heat-sinks).

It doesn't fix bad contacts. Simply removing and re-seating the connection does the cleaning, because every electrical contact mating surface involves a tiny bit of plastic deformation, by design. So, pushing it back together jams the contact surfaces together, deforming them and making a new connection.

Applying dielectric grease just helps minimize oxygen infiltration into the contact area, which might help prevent the problem from returning.
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