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View Poll Results: Dielectric Grease
Never use it 1 50.00%
It's Snake Oil 0 0%
Use it on everything 1 50.00%
Use it on most things except ...... (please specify 0 0%
OTHER 0 0%
Voters: 2. You may not vote on this poll

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  #1  
Old 06-12-2019, 06:17 PM
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jaye944 jaye944 is offline
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dielectric grease

so do you use DG on everything on a BMW
would you not use it ever
would you DEF not use it on some things
it's snake oil ?

I've NEVER ever used DG in 30 years of wrenching

thoughts
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  #2  
Old 06-12-2019, 07:32 PM
BabyUnicornTaco BabyUnicornTaco is offline
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Canít it decompose/break down and cause the contacts to fail early? Where do you want to use it?


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  #3  
Old 06-13-2019, 04:23 AM
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WooHoo. More PolyDimethylSiloxane and fumed silica.

I know what is dielectric grease, do you?

Dielectric grease, is a waterproof grease made by combining a silicone oil with a thickener. Most commonly, the silicone oil is polydimethylsiloxane (PDMS) and the thickener is amorphous fumed silica.

Years ago I bought a pound of Dow Corning - DC-11 silicone grease and use it where ever I want to apply PDMS with no danger of it running - door seal weather stripping, for instance. Underhood water excluding bulkhead weatherseal!

Dielectric means roughly resistor, and many idiots mistake dielectric grease for waterproof contact improver, like NO-OX-ID

https://www.sanchem.com/electrical-c...lubricant.html

This is what my local power coop uses and when I need a dab I just visit them.

DO NOT USE DIELECTRIC GREASE ON ELECTRICAL CONTACTS CONNECTIONS. Now that I think of it, as a sailor I used to maintain 300 KW DC motor-generators with huge commutators and brush sets - with big warning signs to keep atmosphere contaminants away, and they lived in hermetically sealed air cooled enclosures. Silicones and oils ruin commutation. We used to polish the commutators with heavy canvas.
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Last edited by Doug Huffman; 06-13-2019 at 04:38 AM.
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  #4  
Old 06-13-2019, 08:04 AM
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hey Doug,
good explaneo
I'm seeing this stuff on you tube, for example on sparkplug boots and when changing bulbs,
gets gooped in, this one channel was discussing DG
said some people slap it on everything,
just wondering on the BMW,



this was the initial vid I watched

thoughts ?
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Old 06-13-2019, 08:22 AM
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Wonder why my power company guys don't use it, and do use DE-OX-ID. The conspiracy of ignorance masquerades as common sense.

Or try the logic from the other direction. If DG is so cheap and effective then why don't the OEM's use it? How deep does the conspiracy extend?

I was a professional IBEW union marine-electrician journeyman-leadingman that never had engineering instruction procedures to use DG.
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Scepticism and Animal Faith (1923)
Scepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness.
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Eschew eristical argumentation. I am responsible for what I write, not for your understanding of it.
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  #6  
Old 06-13-2019, 01:38 PM
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jaye944 jaye944 is offline
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yes very good point ? everything is always assembled dry, no lube, no silicone grease, no anti-size.. now is that because everything is new, or the "cost" and time of slathering goop adds up.

is it to promote wear and future repairs.

I remember when I asked about spark plug replacements on the 1er, 2 camps came up, use anti-sieze and as the manufacture said DONT use it.

good points

that said, in the uk, on the telco side, many years ago, when the guy's did repair work and spliced wire together, they had a joint connector which essentially had a metal piece which clipped into the old and new cable (essentially tieing them together) it was a transparent
circle of plastic and it was filled with a clear goop, when you then crimped to get the joint.

but is was for telco cabling, using less than 50v at only a few milliamps

Quote:
Originally Posted by Doug Huffman View Post
Wonder why my power company guys don't use it, and do use DE-OX-ID. The conspiracy of ignorance masquerades as common sense.

Or try the logic from the other direction. If DG is so cheap and effective then why don't the OEM's use it? How deep does the conspiracy extend?

I was a professional IBEW union marine-electrician journeyman-leadingman that never had engineering instruction procedures to use DG.
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