They exploit the phenomenon of "tunneling" that expidites electron movement between poorly contacting metals.

D series - first and foremost a heavy duty contact cleaner with contact enhancer/

This product cleans electronic contacts very well, as well as very easily

Over time, contacts get dirty which are then either noisy or not functional

I use for many applications such as cleaning and improving contacts in switches and resistant sliders, old tuners

Don't know of any other contact cleaner that lubricates

When the contacts in electronic components get dirty they stop working correctly

This product cleans electronic contacts very well, as well as very easily

Use this one ONLY for Gold or Gold Plated contacts

This product is God sent for fixing electronics contact related issues

It's an amazing contact enhancer

In fact - it is the only contact cleaner, lubricant, and contact enhancer I trust

I used the Gold Contact Conditioner after first using the DeOxit cleaning solution - as recommeded by CAIG.

In the end, I hope this description helps you pick the best formula for your needs but the bottom line is the Caig/Hosa contact cleaners/enhancers are all first class and even if you pick a less than perfect formulation it will not only do NO harm but likely still fix your problem

This is excellent for keeping contact clean on electrical equipment and is a highly respected product in High End audio

This spray is more suited to preserving things that are already clean, whereas I wanted the spray that restores already corroded contacts.

For gold contacts it offers near perfect protection and will enhance electrical connections for gold, etc

Great product for cleaning contacting metals which are gold or gold plated.