Electrical Conductivity Grease

What does it say on the grease's container label?

I use dielectric grease, a thin film. If you're referring to contacts like points in a distributor, you don't want any grease on or near the contact points, it will interfere with the flow of electricity. If you're talking about metal contacts that plug into each other, (male and female), no problem, dielectric will keep out moisture and prevent corrosion. Lithium might work too, I like the dielectric because I know it's non conductive. Before I posted, I just did a google search, and there is a product out there called,"Electrical Contact Grease", I bet that would work well also.

There are graphite loaded greases available, or graphite powder can be added to various types of grease to obtain required result.

any good electrical supply house has specialized grease for various wire & connectors especial if its two different by-metal products to be connected. Some city inspectors make sure this grease is applied to those connectors. Equipment that is in a high vibration location it's a must

good luck from Indonesia

automotive supply stores sell spark plug thread electric conductive lubricants.

I use KOPR-SHIELD grease made by Thomas and Betts when I'm doing electrical work. I use it anywhere a cable is connected like in an AL9CU terminal. It is conductive and has particles of copper suspended in the grease. When you lubricate the aluminum screws in breaker panels you can tighten them better and avoid siezing. It is also recommended on battery terminals to avoid corrosion and enhance the connection's conductivity.

YES

No do not use but you can use any dielectric based greese. You can buy this from Lord corporation

Also no copper antisieze grease is not a great idea on aluminium threads as there is a tendency to overtorque and stretch the thread also under work loading threads can stretch more easily and work loose.[ If it must be used a nickle based antisieze would be better from a corrosion point of view] The correct grade of Loctite would be a better thread sealer for aluminium would avoid seizing and lock the thread when cured with no thread distortion if assembled correctly. Aluminium bolts if used to clamp aluminium busbars together is ok but the two conductive surfaces should be treated with the special gritted grease for a static joint not on the threads.
Special gritted conductive grease for crimp connectors is used when copper and aluminium wires are used this breaks through the oxide layer and seals the connection against electrolysis
Graphite is an ideal lubricant for a sliding surface as its molecular structure is like plates sliding over each other it is very slippery and has good electrical conductance, I have used it to carry 300 amps in a sliding contact configuration so long as no arcing takes place. It is also used in motor and generator brushes because of these properties.

You may be more informed on the subject than me however I can state categorically that KOPR-SHIELD has been working very effectively for me. I always use it on my new installations and have used it when troubleshooting old installations where overheating at connection points ocurrs. As far as overtorquing goes I think this is more an issue of common sense. In panels with no grease I have had problems with seizing and overheated connections requiring retorquing 6 months after initial installation yet with this grease I rarely need to retorque at all. I have never had stripped threads with it either. But thanks for your point of view.

yes due diligence can avoid a lot of problems, initial galling of the bolts could give the impression of a tight joint, I note aircraft aluminium bolts have a very thick anodising which probably helps avoid this problem.

I would have thought galvanised or cadmium plated bolts would be better for aluminium buss bars in so far as strength goes and are compatible so long as joint overheating does not take place. Unless it is a specification requirement to use aluminium.

Lithium grease will work for any point which is not in the electrical circuit path. If you are lubricating the sliding contacts themselves, or any other part of a current path, do not use lithium grease. It is not a conductive medium and will create a high resistance connection. The contacts will overheat and fail. Dielectric grease, which is formulated to be an electrical insulator, will produce similar results.

For locations such as hinges and contacts of air break switches, the bus bar contacts of motor control center starters, or air circuit breaker contacts, use a conductive grease. One such grease is this product from mg Chemicals. It has a carbon content of 21% (lithium grease is <1%) to maintain electric conductivity while reducing metal-to-metal friction. When applying, ensure the grease does not leave a film between contacts, which will create an electrical path through the film.