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What can be used as a corrosion inhibitor in vehicle electrical connectors?

BuildSpark

I recently had  to change a connection block and windscreen wiper motor controller unit on a Ford Transit Custom because of water ingress into the connector and the wiper motor controller unit.  What can be used as a corrosion inhibitor inside electrical connectors to extend the life of the connecting elements?

  

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  • 0

    I would use silicon grease as an alternative to vaseline, the sort that is sold for potable plumbing.

  • 0 in reply to davidwalker2

    Wouldn't silicon reduce conductivity?

  • 0 in reply to BuildSpark

    My understanding is that these connectors have high contact pressure, and the wiping action as it makes will move the silicon out of the way.  Petroleum jelly is also an insulator (and flammable).

  • 0 in reply to davidwalker2

    Ok, that makes sense.  We've used Dielectric silicon grease before but reluctant to smear the contacts with it. Maybe we should be a bit more brave. 

  • 0 in reply to davidwalker2

    I see no reason why silicone grease would repel water any better than Vaseline or bog-standard grease. Whichever sort you use, the contact between the prongs and sockets will wipe it away. What you need is a good dollop of the stuff which prevents the water from getting near in the first place.

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  • 0 in reply to davidwalker2

    I see no reason why silicone grease would repel water any better than Vaseline or bog-standard grease. Whichever sort you use, the contact between the prongs and sockets will wipe it away. What you need is a good dollop of the stuff which prevents the water from getting near in the first place.

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