Re: Dielectric grease on printed circuit pins
[Re: mopars4ever]
#2104025
07/05/16 12:55 AM
07/05/16 12:55 AM
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Joined: Mar 2003
Posts: 4,848 Memphis
HemiRick
master
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master
Joined: Mar 2003
Posts: 4,848
Memphis
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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 68 Coronet R/T 440 & 68 Charger 528 Hemi,and 5 Challengers! 6 cyl, 318, 360, 383, 451
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Re: Dielectric grease on printed circuit pins
[Re: Stanton]
#2104558
07/05/16 11:17 PM
07/05/16 11:17 PM
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Joined: Jan 2003
Posts: 4,278 Morrow, OH
markz528
master
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master
Joined: Jan 2003
Posts: 4,278
Morrow, OH
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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. 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
67 Coronet 500 9.610 @ 139.20 mph 67 Coronet 500 (street car) 14.82 @ 94 mph 69 GTX (clone) - build in progress......
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Re: Dielectric grease on printed circuit pins
[Re: Stanton]
#2104596
07/06/16 12:30 AM
07/06/16 12:30 AM
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Joined: Jan 2003
Posts: 15,462 Omaha Ne
TJP
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 15,462
Omaha Ne
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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,
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Re: Dielectric grease on printed circuit pins
[Re: TJP]
#2104815
07/06/16 11:31 AM
07/06/16 11:31 AM
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Joined: Sep 2003
Posts: 19,534 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,534
north of coder
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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.
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Re: Dielectric grease on printed circuit pins
[Re: mopars4ever]
#2104836
07/06/16 11:52 AM
07/06/16 11:52 AM
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Joined: Jan 2003
Posts: 12,218 Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 12,218
Benton, IL.
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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
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Re: Dielectric grease on printed circuit pins
[Re: DaveRS23]
#2104937
07/06/16 02:41 PM
07/06/16 02:41 PM
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Joined: Jun 2008
Posts: 1,822 Colorado
denfireguy
top fuel
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top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
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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
2014 Ram 1500 Laramie, 73 Cuda Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango Only previous Non-Mopar: Schwinn Tornado
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Re: Dielectric grease on printed circuit pins
[Re: mopars4ever]
#2105332
07/06/16 11:44 PM
07/06/16 11:44 PM
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Joined: Oct 2005
Posts: 8,899 Ontario, Canada
Stanton
Don't question me!
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Don't question me!
Joined: Oct 2005
Posts: 8,899
Ontario, Canada
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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.
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Re: Dielectric grease on printed circuit pins
[Re: Stanton]
#2105488
07/07/16 09:23 AM
07/07/16 09:23 AM
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Joined: Sep 2003
Posts: 19,534 north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,534
north of coder
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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 ?
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Re: Dielectric grease on printed circuit pins
[Re: moparx]
#2105547
07/07/16 11:16 AM
07/07/16 11:16 AM
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Joined: Jun 2008
Posts: 1,822 Colorado
denfireguy
top fuel
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top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
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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
2014 Ram 1500 Laramie, 73 Cuda Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango Only previous Non-Mopar: Schwinn Tornado
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