Yeah it's one I cringe at. Graphite is used to make it conductive. Grease contains water + Graphite + Aluminum =
An interesting study is to look at the number of NEC certified alum. to alum. wire connectors that have been removed from the market in the last 40 years.
This is better
NO-OX-ID Electrical Contact Grease- Conductive Lubricant | Sanchem, Inc.NO-OX-ID electrical contact grease prevents the formation of corrosion deposits & keeps metals free from rust & corrosion. Buy electrical conductive lubricant now!www.sanchem.com
Quoted from the PDF.
Fallacy of adding metals to increase Conductivity:
Many contact greases have copper, zinc or other metals blended into a grease to increase
conductivity. In a study for an aerospace company in 1985 it was concluded that putting a
metal into grease does not help conductivity. In many cases it reduces conductivity. The
United States Department of the Interior Bureau of Reclamation in their Facilities
instruction Journal Volume 3-3 Electrical Connections for power circuits states in Sec.
6.3.2 that "Use of grease with embedded zinc particles will cause a poorer connection due
to the lower conductivity of zinc".
Aluminum Oxide is one of the hardest substances known to man, just softer than
diamonds. How can a metal as soft as Zinc cut through it? It can't! Zinc metal can not
dissolve aluminum oxide either. The aluminum oxide that typically forms on an
aluminum connection is only 50-120 angstroms thick. Sanchem's NO-OX-ID penetrates
the oxide film by the chemical action of our corrosion inhibitor system.
No-Ox-Id is the paste I use and would recommend to anyone. It's cheap, effective, and a little bottle goes a long way. I've used it on all sorts of connectors including on 280Ah cell terminals/bus bars and it performs wonderfully.