Who uses Dielectric grease for their bulkhead terminals?

Kern Dog · Oct 13, 2020

I never have before. I have several Mopars here that don't have electrical problems even though they sit awhile between drives.
My project car has some electrical problems that I am working on including the replacement of the bulkhead plug and fuse box. As I start putting it back together, I am curious about using the grease to reduce the risk of corrosion. The humidity here is relatively low but the Wife and I are considering a move to a place that may be more humid. I thought I read somewhere that the corrosion gets worse with higher humidity.
If I do use the stuff, I'm guessing that each terminal only needs a small amount.

440Coronet500 · Oct 13, 2020

I think it's a good idea regardless if you live in a humid environment or not. It certainly won't hurt anything. 440'

kiwigtx · Oct 13, 2020

Never used it.

I prefer to go in dry.

toolmanmike · Oct 13, 2020

kiwigtx said:
Never used it.

I prefer to go in dry.

That's what she said! I like a little lube myself! :rofl:

Billccm · Oct 13, 2020

Generous soaking with DeOxIt and that's it.

JimCoronette · Oct 13, 2020

I use it on any electrical connection that gets removed/replaced.

I use antiseize on hardware just as religiously.

BLK 68 R/T · Oct 13, 2020

I put some on mine, figured it will help at least keep corrosion from starting.

Chargerjase · Oct 13, 2020

I absolutely use it on mine. Especially if it sits for a while. Zero issues if you use it.

Big Bad Dad · Oct 13, 2020

I have started using it on most electrical connections. I used to put wheel bearing grease on battery terminals to try and prevent corrosion. But now, the dielectric grease is so much nicer and cleaner. And it really helps on trailer plugs and connectors too.

F4R/T · Oct 13, 2020

If it needs cleaning deoxit is the finest, I also use good old trusty WD-40 and definitely put some silicone grease in there...

toolmanmike · Oct 13, 2020

Big Bad Dad said:
I have started using it on most electrical connections. I used to put wheel bearing grease on battery terminals to try and prevent corrosion. But now, the dielectric grease is so much nicer and cleaner. And it really helps on trailer plugs and connectors too.

It is good stuff!

68gtxman · Oct 13, 2020

I did it to mine and any electrical connection that may ever see water.

Darter6 · Oct 13, 2020

I use it too.

vintage chromoly · Oct 13, 2020

I used it when I re-terminated my bulkhead.

VitaminCRR · Oct 13, 2020

Just bought some today and will be using it on the bulkhead repair I'm dealing with. Lots of corrosion when I took it apart.

Builderguy · Oct 13, 2020

Just a reminder:

Where should you not use dielectric grease?

Since dielectric grease is a silicone grease, it should not be used on silicone-based rubbers or plastics, as it will break them down over time. The grease does not conduct electricity, so it shouldn't be applied directly to the mating surfaces (pins and sockets) of an electrical connection.Feb 26, 2015

From: https://www.farmandfleet.com/blog/what-is-dielectric-grease/

chtampa · Oct 13, 2020

Builderguy said:
Just a reminder:

Where should you not use dielectric grease?

Since dielectric grease is a silicone grease, it should not be used on silicone-based rubbers or plastics, as it will break them down over time. The grease does not conduct electricity, so it shouldn't be applied directly to the mating surfaces (pins and sockets) of an electrical connection.Feb 26, 2015

From: https://www.farmandfleet.com/blog/what-is-dielectric-grease/

Dielectric is not conductive.

Ron H · Oct 13, 2020

Like some other topics where some swear by one SOP or the other, found that more have suggested di-electric grease to thwart corrosion. After replacing my BH I used it. Wasn't something I did years ago but a mechanic buddy was all over me to use the stuff.

moparmarks · Oct 13, 2020

I use a little No-Lox. All my light bulb sockets get it too.

Durandal25 · Oct 13, 2020

Never used it. I use a little bit of Lucas red tacky grease and wipe it off....just a residue left...

Who uses Dielectric grease for their bulkhead terminals?

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