DeoxIT D100L-25C Precision Needle Applicator, More Than A Contact Cleaner, 25 mL, Pack of 1

i saw some one on youtube use this to clean their game cart and also put some in a pot for a 2600 paddle.so i got some and boy does it work well! especially for cleaning the contacts on a virual boy for the displays after solder fixing them. i also tried it out in the volume knob and and its as smooth as silk after applying when turning it and the sound is no longer crackly. it works way better than wd-40! all though the price is high i will be using this sparingly. one thing i really like it the fact that it absorbs in to tiny cracks making it easier to oil a pot.If you work on old electrics this is a must!

Used on some original NES game cartridges. They went from being very finicky/temperamental to easily reliable. Have been working great for several months.

Great product! Works for all kinds of electrical contacts.

Did the job on a scratchy volume pot on a vintage hollowbody electric guitar. The needle applicator allowed me to apply through an f hole right into the side of the pot. A few twists on the knob and the scratchiness is completely gone and it turns more smoothly as well. Design:Needle applicatorUse:Clean a vintage guitar potentiometer

It works flawlessly. Just needed two drops to get a sliding switch working properly again. Cost per ounce too high though.

Stopped recurring oxidation problem with RV battery-to-charger connection

Mine didn't come with a cap or plug for the needle valve and so it leaks everywhere and I've wasted much of it, otherwise it's a great product and doesn't an excellent job cleaning oxidized electric contacts and keeping them firing well.

I've been using this stuff for years and it's one of those items that live up to the hype! If you need to protect connectors from oxidizing or losing connectivity, this is the stuff. I've never had problems with it harming plastic parts. I use it mostly on electronic assemblies and treat every connector with it. I've used it on downhole oilfield electronics that operate in a very high temp environment and it has made a big difference in performance and reliability.