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Dielectric grease on printed circuit pins #2104019
07/05/16 12:30 AM
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mopars4ever Offline OP
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Would it be ok to put some dielectric grease on the pins where the wiring harness plugs on to the printed circuit board?

Re: Dielectric grease on printed circuit pins [Re: mopars4ever] #2104025
07/05/16 12:55 AM
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HemiRick Offline
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prob be a good idea I've had plugs pull pins outta the PCB from too much friction


Take care,
Rick
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Re: Dielectric grease on printed circuit pins [Re: mopars4ever] #2104031
07/05/16 01:04 AM
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Yea, that`s what happened to me. When I get a new one I don`t want it to happen again.

Re: Dielectric grease on printed circuit pins [Re: mopars4ever] #2104110
07/05/16 09:47 AM
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moparx Offline
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and soldering those pins to fix them is not the most pleasant job. and the 96 up model year connectors are more "fun" to repair than the earlier models. dielectric grease is your friend on all electrical connections.
beer

Re: Dielectric grease on printed circuit pins [Re: mopars4ever] #2104155
07/05/16 11:39 AM
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Stanton Offline
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Ok, do you know what dielectric grease is ?? The popular misconception is that dielectric grease is conductive and will and provide good electrical conductivity on contacts. This is FALSE. Dielectric grease in NON-CONDUCTIVE and will hinder any electrical connection. So you DO NOT want to put it on the contact portion of any circuit board. What often happens when people do use it in that manner is the grease will burn, smoke and stink because there is just enough contact to generate heat.

A good example of where to use dielectric grease is on spark plug boots to seal against moisture. A bad example of where to use it would be on the plug wire contacts.

Re: Dielectric grease on printed circuit pins [Re: mopars4ever] #2104262
07/05/16 03:01 PM
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That was why I asked. Didn`t know if it would be ok or not. Anything I can use?

Re: Dielectric grease on printed circuit pins [Re: mopars4ever] #2104310
07/05/16 04:38 PM
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Just having the pins clean will give years of trouble-free service. But if you really want to put something on there, consider a light shot of WD40.

Re: Dielectric grease on printed circuit pins [Re: mopars4ever] #2104488
07/05/16 09:43 PM
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Are there any places/businesses that you can send the board to and have it repaired?

Re: Dielectric grease on printed circuit pins [Re: Stanton] #2104558
07/05/16 11:17 PM
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Originally Posted By Stanton
Ok, do you know what dielectric grease is ?? The popular misconception is that dielectric grease is conductive and will and provide good electrical conductivity on contacts. This is FALSE. Dielectric grease in NON-CONDUCTIVE and will hinder any electrical connection. So you DO NOT want to put it on the contact portion of any circuit board. What often happens when people do use it in that manner is the grease will burn, smoke and stink because there is just enough contact to generate heat.

A good example of where to use dielectric grease is on spark plug boots to seal against moisture. A bad example of where to use it would be on the plug wire contacts.


That is a myth. It will work just fine to prevent corrosion and add some lubrication.

However, this stuff is unbeatable for these types of connections..........

http://www.aviationpros.com/product/10139374/aerosafe-products-inc-super-corr-a


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67 Coronet 500 (street car) 14.82 @ 94 mph
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Re: Dielectric grease on printed circuit pins [Re: markz528] #2104578
07/06/16 12:13 AM
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Originally Posted By markz528

That is a myth.


Really, OK it may be OK BUT,

Quote:
dielectric [(deye-i- lek -trik)]


A material that conducts ( see conduction ) electricity poorly or not at all. If a voltage is applied to a dielectric, the atoms in the material arrange themselves in such a way as to oppose the flow of electric current. Glass, wood, and plastic are common dielectrics. ( See insulator.)


twocents

Re: Dielectric grease on printed circuit pins [Re: mopars4ever] #2104587
07/06/16 12:26 AM
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Stanton Offline
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Well who ya gonna trust !!!!

Re: Dielectric grease on printed circuit pins [Re: Stanton] #2104596
07/06/16 12:30 AM
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Originally Posted By Stanton
Well who ya gonna trust !!!!


Hmm, Johnson and Johnson, They make a connectivity product called KY that has been proven to ensure "connections" LOL

Sorry couldn't resist the "CONNECTION" no pun intended, stirthepot

Re: Dielectric grease on printed circuit pins [Re: TJP] #2104815
07/06/16 11:31 AM
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all i know is that for 40 years or so using dielectric grease, i have not seen any smoke, fire, melted wires, heat, or poor electrical functions on any places i use this stuff. i have also seen using this stuff prevents corrosion on the connections as well. it also doesn't explain why you see, on a very common basis, white grease [lithium perhaps ?] on factory connections of all sorts. it works for me and i will continue to use it, right or wrong. if it didn't work as described, no one would be using it today with all the problems caused by corroded, unprotected connections. your results may vary.
beer

Re: Dielectric grease on printed circuit pins [Re: mopars4ever] #2104836
07/06/16 11:52 AM
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I have used dielectric grease on nearly all my electrical connections since I worked in the marine industry 35 years ago. They mandated it. And I have never had a problem.

I always believed that they mandated the dieletric because it would provide protection and lubrication while not promoting cross-terminal conductivity when too much was in there. In fact, we often used enough in connections that it filled the cavity in an effort to keep water out.

Aren't the connections metal to metal? I just have never had a problem with the dieletric. Even when used to excess.


Master, again and still
Re: Dielectric grease on printed circuit pins [Re: DaveRS23] #2104937
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Same experience I have. The connections are supposed to be self wiping making a metal to metal connection. If the connection is loose, dielectric grease can insulate and prevent a good connection. You have to always make sure that mechanically everything is up to snuff before applying grease and assembling. The grease is to prevent water and air from oxidizing the connectors, not to promote electrical conduction.
Having said that, it does help with heat conduction. Before heat conduction compounds became available we used dielectric grease to mount power transistors to heat sinks.
Craig


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Re: Dielectric grease on printed circuit pins [Re: mopars4ever] #2105275
07/06/16 10:29 PM
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When I removed the front turn signal bulbs today they had a orangish color grease on them. Anyone know what kind of grease was on them?

Re: Dielectric grease on printed circuit pins [Re: mopars4ever] #2105332
07/06/16 11:44 PM
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Quote:
it also doesn't explain why you see, on a very common basis, white grease [lithium perhaps ?]


"Dielectric grease" and "Lithium grease" are NOT the same thing.

Re: Dielectric grease on printed circuit pins [Re: Stanton] #2105473
07/07/16 08:42 AM
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FWIW I usually use grease on electrical connectors - typically white lithium - to help keep moisture out and limit corrosion.

Agree it is not a good conductor of electricity but metal contact is sufficient with grease applied. It has worked well for me.

Re: Dielectric grease on printed circuit pins [Re: Stanton] #2105488
07/07/16 09:23 AM
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moparx Offline
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Originally Posted By Stanton
Quote:
it also doesn't explain why you see, on a very common basis, white grease [lithium perhaps ?]


"Dielectric grease" and "Lithium grease" are NOT the same thing.


that is very true, and i am well aware of that fact. just asking what is used. are there various other "white" greases out there besides lithium ?
beer

Re: Dielectric grease on printed circuit pins [Re: moparx] #2105547
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I mentioned heat sink compound earlier. It is dielectric grease with additives to make it a better conductor of heat. It is heavily used in electronics for mounting voltage regulator ICs, power transistors, power FETS, etc. It is electrically inert and more readily available. It also is easier to see when applying because of its color. It is usually white but comes in other colors.
Most of the automotive stores sell CRC grease that is clear. They really push it for metal base bulbs. If you are using aluminum based bulbs in brass sockets, it is mandatory to use. The only mechanically secure connection is the bayonet prongs. Dissimilar metals without a mechanical connection will corrode making removal of the bulb impossible.
Craig


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