DeoxIT D100L-2DB Brush Applicator, More Than A Contact Cleaner, 7.4mL, Pack of 1

Step sister thought this was some kind of fingernail polish .

love this stuff , had 48 golf cart chargert that worked intermittent, once i applied this to the connectors it hasnt failed once.

Works great on dirty charging ports

Doing its thing well. I would recommend this.

I have a 1985 Porsche 911 which is all original. Over the last couple of years, I'd started to have issues with the spade connection in the ignition wire near the key. I'd plug and unplug the connection and eventually, I'd get a connection and the car to start. Then a couple of weeks ago, nothing I did could make a good connection. So I tried DeOxit on the male and female ends of the connection and let it sit overnight. (This is a key to the application process, it seems.) The next day the connectors looked like new and the connection has been solid ever since. I'd recommend DeOxit for any electrical connection that has oxidized and isn't working properly.

This stuff works wonders for electronic connections for audio and video gear. When used as directed it can turn less than standard stock headphones sounding decent. Been using this stuff for years. Only get the gold treatment if both your connections are gold plated. Otherwise it’s a waste of time and money and it was not designed for this way. The red treats all connections well, no matter the metal type.

Works as advertise -- fix a chuch sound system that would not respond to typical contact cleaner highly recommend.

I used it on the pins of the vacuum tubes for my headphone amplifier. Before, there had been a lot of crackling and I thought it was a noisy tube. Now there is dead silence. I had previously tried the Deoxit pen. That had helped, but the brush allowed much better coverage. Despite being cleaned by the pen, I still got a lot of oxidation come off on the cleaning cloth after applying the Deoxit with the brush.