What is that whiteish stuff on bad batteries (ruins stuff)?

Never heard of that stuff, but if it's as you describe, it should be quite useful. How conductive, I don't know. The patent isn't very helpful: "The contact stabilization material comprises at least one block polymer or co-polymer of polyoxypropylene together with polyoxyethylene." It then points to a French patent: which has a better explanation. I'll RTFM over the weeken.

I got the Caig L260 and M260 info you linked came from: (Sorry I forgot to include the link. Kinda crazy today). Notice the mention of metallic filler. Is Caig L260 and M260 the right grease or should I be looking for something else?

Yeah, there's a high information cost... and there's more boosterism than chemical physics in the sales lit. As to 'how conductive', the L260 variant that I used doesn't have conductive particles, so it only conducts in thin films, like rubbing parts would have around contact points. Because it is nonlinear, 'conductivity' is undefined (and the rubbing of bumpy surfaces mean the film thickness is likewise indefinite). Variants on this lubricant are recommended for slide potentiometers, I see.

The admixture of conductive particles would make a grease conduct electricity, but that would be unsafe in electrical panels (and the intended uses include busbars). It would decalibrate potentiometers, too. Because metallic particles would constitute dissimilar metals in my mechanism, I didn't want to use such a grease.

MMMMMMMMMMMMMM

use the artist's paintbrush not the zerkgun ....

If the stuff works as you describe, then it should change conductivity from a bad insulator to a marginal conductor when pressure is applied. That got my interest because I have an application for a cheap pressure sensing system, that will work with rollers and gears. In theory, I could monitor the conductivity between meshed gears, which would give me an indication of the applied pressure or changes in pressure.

However, I don't think it works the way you suggest[1]. The grease simply prevents surface oxidation and displaces electrolytes to reduce galavanic corrosion if the mating surfaces are dissimilar meatals. Doping it with conductive particles also helps reduce galvanic corrosion. When I read the vague and misleading promotional literature from that point of view, the claims seems to make sense.

On the other foot, there are specialized greases that allegedly work the way you describe. I found a hint at: but could not find any specifics. I'll dig more later. I also haven't had time to read through the patents yet but I'll get to it this weekend.

This material is better known as "Stabilant 22" (often used as "Stabilant 22A", diluted in alcohol). Years ago, Stabilant 22A was remarketed to the audiophile community (in small syringes, probably with a huge mark-up) under the name "Tweek".

I've used it for quite a few years. It definitely seems to help maintain electrical connections between contacts. Quite useful for (e.g.) finger contacts on PCI cards... it has restored reliable operation for cards which were intermittent, when a simple "unplug, clean, and re-plug" cycling didn't help.

I still have cramolin copper grease. I never used it on anything. Seems like it had little conductivity with test leads.

Greg