NOALOX is basically for
aluminum wire and aluminum electrical connections since it contains zinc particles which 'cut' through the aluminum oxide film. I would not recommend using it in your situation. I have been working with electric and electronic circuits and components for years and this is not what I would use for oxidized silver or brass or copper connections.
I highly recommend that you use one of the best products on the market; it's called
DEOXIT Contact Cleaner and is highly reviewed and recommended by many experts in the electronics field. It's not as cheap as NOALOX but a very little goes a long way and it won't leave zinc metallic residue to stain clothes and hands.
You can get it at Guitar World stores, Radio Shack, Ebay, Amazon and directly from the manufacturer.
Here's some info on it:
DeoxIT® D-Series contact cleaner is a fast-acting deoxidizing solution that cleans, protects, lubricates and improves conductivity on all metal connectors and contacts.
Use as a general treatment for connectors, contacts and other metal surfaces, and on non-critical metal surfaces with severe oxidation and corrosion. If the metal surface is discolored, it is severe. DeoxIT® dissolves the contamination and protects the surface.
For reference, DeoxIT® has approximately 20% cleaning action.
KEY FEATURES:
Improves Conductivity
Deoxidizes, Cleans & Preserves
Reduces Intermittent Connections
Reduces Arcing & RFI
Reduces Wear & Abrasion
Temperature Range, -34 C (-29 F) to +200 C (400 F)
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It has a multitude of uses, not just for vaping mods and such. I've used it on computer cards/parts, switches, distributor caps, headlight and taillight connectors, flashlights, etc.
The best pricing I've seen is on Ebay for a 5oz. can for $13.95
Here's a link to the manufacturer's webpage:
DeoxIT® D-Series