ok,
first noalox is a semi conductor and it has zinc in it but was originally designed for aluminum as in NO ALuminum OXidiation., It doesnt increase conductivity it preserves it. ever notice the black junk in the threads of the battery cap or 510? this is what noalox helps prevent.
many mod makers say NOT to use it on silver plating as it will wear it off faster. (and silver is the most conductive material there is) you dont put something with less conductivity in the way.
if your looking to actually help conductivity there are several copper and carbon based compounds which will work much better while providing the same protection specifically designed for electric, electronic and switch contacts.
silver, while being highly conductive will also tarnish easier and should be cleaned regularly and left bare, (on mod pins we are only talking a few microns) and these treatments are too aggressive under pressure and turning of the battery etc. and will quickly grind it right off like liquid sandpaper.
MG Chemicals 8463-7G Carbon Conductive Grease, 7g Syringe, Silver: Amazon.com: Industrial & Scientific