That's strange. How about DeOxit? It is not a grease, but a cleaner/lubricant/protectant used by lots of electronics enthusiasts (radio/audio, etc). Musicians use it with mixer boards, pedals, amps and more. You might even be able to find it in a musical instrument store there.
I couldn't get my hands on Noalox locally and used DeOxit on all my vape gear. It is more expensive than the greases, but works fantastic in our high humidity.
I will see if I can find that. With the new contacts from Rob, wouldn't this be an unnecessary maintenance task though?