Home » Public Forums » GMCnet » Do you use and carry dielectric grease in your RV?
| Re: Do you use and carry dielectric grease in your RV? [message #239834 is a reply to message #239816] |
Thu, 13 February 2014 10:31   |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma:
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Senior Member |
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| JohnL455 wrote on Thu, 13 February 2014 09:37 |
It's strange stuff. By name it means it resists electrical conduction. At Amana I brought this up to Dick P and we layed out a small bead of it and checked it with the Ohm meter. No reading on any scale. Yet on metal you could probe through it and get 0 Ohms.
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Di-electric grease is about as bad a label as one can be. With a VERY FEW specific exceptions in materials formulated to be conductive lubricants, everything you know as a "grease" is dielectric and will not conduct any amount on its own.
Those of us that have used this for a long time know this as silicon grease. Real silicon grease is neat, it retains its physical properties over a very wide temperature range. When Dow-Corning first developed the material is was though to be the answer to high altitude low temperature lubrication so needed in the new B-29s.
Just one problem....
It has nearly ZERO film strength. (Can You Say - Flop?)
That high film strength is exactly what makes normal greases - "grease".
At that time the practice of greasing corrosion sensitive connections was well established and only partly successful because of the problem caused by the film strength of any normal lubricating grease. Someone saw the match. When the silicon (aka dielectric) grease replaced the lubricating grease, reliability soared.
Amusing story from an older fellow at GM Tech Center follows.
While the practice was well known in the marine trades, it didn't really get big until the early ECU controlled engines started dying due to bad connections. GM issued a memorandum to "Grease" the connections of any vehicle that had such problems with already stock connection grease in the inventory. Problem... "There is always some fool that doesn't get the Word..." When chassis grease was used, it didn't do the job because it was often good enough to keep the metal parts of the contacts from making contact.. Hence, crates of "GM Dielectric Grease" was shipped to dealerships with explicit instructions for its use and non-use.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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Do you use and carry dielectric grease in your RV?
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Re: Do you use and carry dielectric grease in your RV?
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Re: Do you use and carry dielectric grease in your RV?
By: SeanKidd on Wed, 12 February 2014 11:35 |
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in yourRV?
By: USAussie on Thu, 13 February 2014 15:40 |
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in yourRV?
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in yourRV?
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in yourRV?
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in yourRV?
By: bwevers on Thu, 13 February 2014 19:49 |
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in yourRV?
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in yourRV?
By: USAussie on Thu, 13 February 2014 20:18 |
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in yourRV?
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in yourRV?
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Re: Do you use and carry dielectric grease in your RV?
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Re: Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in your RV?
By: USAussie on Wed, 12 February 2014 15:45 |
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Poll: Do you use and carry dielectric grease in yourRV?
By: USAussie on Wed, 12 February 2014 16:57 |
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Re: Do you use and carry dielectric grease in your RV?
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Re: Do you use and carry dielectric grease in your RV?
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Re: Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
By: USAussie on Fri, 14 February 2014 00:55 |
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
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Re: Do you use and carry dielectric grease in your RV?
By: JohnL455 on Thu, 13 February 2014 08:37 |
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Re: Do you use and carry dielectric grease in your RV?
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Re: Do you use and carry dielectric grease in your RV?
By: Larry on Thu, 13 February 2014 12:41 |
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
By: USAussie on Thu, 13 February 2014 15:08 |
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
By: Larry on Thu, 13 February 2014 20:57 |
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
By: Larry on Thu, 13 February 2014 20:58 |
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
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Re: Do you use and carry dielectric grease in your RV?
By: carguy on Thu, 13 February 2014 13:21 |
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Re: Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
By: USAussie on Fri, 14 February 2014 07:18 |
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
By: USAussie on Fri, 14 February 2014 15:03 |
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
By: jhb1 on Fri, 14 February 2014 08:18 |
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
By: USAussie on Fri, 14 February 2014 15:50 |
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
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Re: [GMCnet] Do you use and carry dielectric grease in your RV?
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Re: Do you use and carry dielectric grease in your RV?
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