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

Love this stuff. As close to a miracle as Ive ever seen. Use it on contacts, plugs, batteries, computer cables. Improves conductivity of anything it touches.

Everything was fine

I have an Owon scope and the rotary encoders that control the trace location and other things were erratic. Other people replaced them or the whole assembly. Someone fixed by adding decoupling capacitors. I was lazy so i tried DeoxIT. I applied it only to the shaft under the knob three times 1 drop a day apart. It is been a few months and it is still working. For the negative; it is expensive. I could have replaced all the encoders for what i paid for this and the DeoxIT slider product. (i used both) . I still have most of it left for other projects.

This stuff is magic. Buy the small nail polish size with a brush, then refill from this. I use it on EVERYTHING. Before putting batteries in anything, I brush some on the battery spring and contact. No more jiggling flashlights. Ever. Those cheap aluminum LED flashlights that have sections that screw together - aluminum oxid (rust) is an insulator (read flashlight dies). Unscrew the new flashlight sections and apply a drop of this to each threaded section and reassemble. I use a little on USB cables. No more intermittent connections. Anything thats bare aluminum or bare copper us going to oxidize/corrode without thus stuff. I put it on bare twisted copper wire before using a wire nut - like on my landscape lighting. Without it, you might get an intermittent. You come back and the copper is black. Theres no way to get a good connection, short of stripping back at least six inches of wire... Twist each wire, brush some magic on. Twist them together and use the wire nut. You wont get an intermittent, and if you come back to re-wire anything, youll find the wire uncorroded! Seriously. Any place metal and electricity collide, add some of this and everyone will be happier. Trust me. You will not be disappointed. It may seem expensive, but a little goes a long, long way. (I use it a LOT and the nail polish bottle lasts me at least a year, my refill bottle just ran out after maybe five years.)

I use DeOxit on all sorts of electrical contacts and havent found anything better. This particular form is great for lubricating electrical plugs then inserting them in outlets that are old and resisting plug insertions.

I was leery about the price of this product but saw other reviews and decided to give it a shot. Im glad I did. It has silenced several noisy pots on older audio equipment that I have spent hours trying to clean in the past. You would still want to clean with an aerosol product, but this seems to be good as a followup once the aerosol dries.

Good a clean and lubricating switches.

I have been using the bottle with brush applicator for almost a decade. And when it was about to run out, I got this to refill the brush bottle and at the same time have a syringe-like applicator for delivering into tight connector spots like in surface-mount interfaces. I use this in tandem with the usual pressured spray can contact cleaner first, then apply this one. The contacts are maintained at high-efficiency maximizing signal transfer and preventing intermittent problems due to poor connections. My go to choice for connector maintenance and reconditioning.

This works very well, but you need to store it upright.

I used this product to clean the pots on the tone and volume knobs of two of my old guitars. This product worked great. It removed the crackling sound I would get when adjusted the tone and volume. My old guitars sound like they did when the were new.