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

Works great!

Works as advertised and corrected my corroded electrical contacts.

Works well on the electrical contacts that I’ve used it on so far.

FOR ANY CORRODED TERMINALS THIS IS THE ANSWER. I LIKE IT ESPECIALLY FOR CONTACTS ON CAMERAS AND HOT SHOES WHERE DIRT GATHERS

I like to refurbish old test gear-- a Heathkit oscilloscope, a Simpson 260 voltmeter, etc. A common problem is intermittent connections from dirt and tarnish on the switch contacts. A lot of problems go away when potentiometers, connectors and switches are cleaned up and tarnish-free. I use a variety of different cleaners-- isopropyl alcohol, inexpensive aerosol contact cleaner, or even something like Brasso on heavily tarnished brass or copper contacts. When Im done cleaning, I add a drop of D100 to add lubricity and keep the contacts from tarnishing again. There is a great deal of debate regarding which cleaner, if any, to use on which contacts. In my case, by the time I get my hands on a piece of old test gear, Im usually trying to undo years of neglect or outright abuse. I usually have very little to lose by adding a drop of D100. The only thing I definitely wont use it on is some of the low tension gold-leaf contacts in some older Tektronix oscilloscopes. Tek specifically says to use nothing but isopropyl alcohol on these, so thats what Ill do when I finally get around to restoring the 7000-series mainframe scope that is patiently waiting its turn. Everything else, including the bazillion socketed transistors inside that scope, will get a drop of D100. Yes, Deoxit is expensive, but a little goes a long way. I buy the needle applicator bottle because its 100% contact cleaner with no propellant. I find the needle applicator wastes less (no overspray) and makes it easier to apply just a small drop where needed. The bottle I bought a couple of years ago is still 80% full, and Ive used it a fair amount. I still keep some cheap aerosol contact cleaner (my go to is the WD40 aerosol from Home Depot) around for doing the bulk of the initial cleaning, but the final step is almost always to add a drop of D100.

Needle dispenser was great for getting into tight spots

Had a noisy audio connector for years. Tried a drop of this just to see if it would help. Fixed it up completely. Not just for controls and switches!

Used for restoring vintage ham radio gear, cleaning potentiometers, rotary switches, etc. Its amazing stuff. One swipe with a cotton tipped swab on switch contacts or a few drops in an old pot and theyre like new... Its expensive, but it does work, use sparingly.

I have used CAIG DeoxIT cleaners for a long time. I am an electronic engineer and I have used it with radios, gadgets, outdoor electrical connections, and many other electrical contacts. This product is the best in cleaning and restoring just about any electrical connection including those which show signs of corrosion. The needle applicator makes it easier to direct it to small areas than using a spray can.

A must have for restoring turntables and old stereo equipment. I acquired some vintage stereo equipment and turntables that were in dire need of some cleaning and TLC. CAIG products are a must when doing projects like this. Sticking, popping slider controls are now smooth throughout their operation and sound like new. Before you toss that old equipment, give this a shot. I might just save the life of your loved one (your loved stereo equipment, that is)...