Hello,
Here is a ancient Chinese secret.
"NO-OX-ID A-Special Electrical Grade" is the best bar none. 1 tube will last a lifetime, Unless you let your neighbor use it, than it disappears.
The telephone company has been using NO-OX-ID for seventy years. I have seen fifty-year-old NO-OX-ID on connectors that I've disassembled and the stuff is still goopy and the connections are still bright and shiny as the day they were made.
http://www.sanchem.com/aSpecialE.htmlDon't waste your time with anything else.
Thanks