I use NOOX-X on all my aluminum connections. It is an oxide inhibitor that you can get it at any electrical supply house. I think Home Depot and Lowes carry similar products in the electrical dept. Dave - KB1PVH Sent from my Verizon Wireless DROID X On Jul 22, 2011 2:43 PM, "Dee" <morsesat at optonline.net> wrote: