Need recommendation on which product to use on Audio and Video equipment?

Q: (19337)

Hello CAIG,
We are professional installers and would like some advice or instruction sheet on which product to use on our audio and video equipment.
We also do outdoor installations for home and businesses.


Problem with silver-plated rotary switch on a Marantz 2325

Q: (18989)

I have been using DeoxIT D5 cleaner on my Marantz 2325 beast for years now. It typically needs to have every silver-plated rotary switch sprayed every 6 months or so. As this is a lot of opening and flipping upside-down and sideways, so opted for the G5 gold spray 142 ml fluid ($40 Canadian) to hopefully leave a film to keep oxygen off the contacts a week after air drying the D5 away. Unfortunately the results were as if no G5 treatment was done, and the intermittent issue showed itself again.

Is my best bet to shove a bit of lithium grease into the rotary contacts about a week after a DeoxIT D5 treatment? I know it should be plastic-safe and if little is used it should not gum up much in the future. I do need to leave a film to prevent additional oxidation.

I don’t turn the function knob and know the DC bias voltage is accelerating the oxidation. I need to coat it well so i can save a constant need to repair every half year. I am considering bypassing the rotary switches all together. The contacts really are correctly aligned, but Montreal is a very humid environment.

My findings from the G5 were that it was unable to leave a significant coating of anything really. I think it pretty much all evaporates leaving the environment to take over. If it were not for plastics in the assembly I would be able to choose things that film over long term. Alas, since the 60s plastics took the industry and they are easy to destroy.

I cannot imagine repeating a procedure twice per year for life. Manufacturers used to do a mixture of stuff that protected well for about ten years back in the 70s. Lithium grease may very well be part of the good original mixture in potentiometers and rotary switches and from what i was told an early version of D5 was part of the mixture.

Thanks for any suggestions,

Best product on 7/16 DIN connectors (military/aviation) for 10 year life?

Q: (18844)

Dear Sir

I am interested in using / testing DeoxIT Gold on RF power connectors.
These connectors are in difficult places to access and need to function well for 10 years. They are placed in exposed positions but the centre PIN and the coax outside are shielded by metal. see 7/16 connector.

These are to be used in the UK so not the -40c to + 50c , but may be near salt water, or pollution.

See 7/16 DIN connector

The main problem I think is thin film build at about 20 Angstroms thick, and not so much fretting.
Do you supply the Military? Aviation with any product and if so does it meet a test specification.

In short Do you think your product could help ?

Many thanks in advance,

Can I use the DeoxIT L260DQp grease on old vehicle connectors with severe oxidation?

Q: (18807)

I work on older vehicles quite a bit, but these are new enough to have electronic sensors with connections to the engine management computer that are very important and sensitive. I have been using your L260DQNp….no particles the last couple of years. I love the all-in-one functionality…protecting/sealing plus promoting continuity between metal but NOT encouraging stray electrical paths like a conductive grease would.
But, I have noticed that some of the older connections need cleaning to really get good conductivity even after the Np grease. My question….do you think the L260DQp, with non-conductive quartz particles, would be a good fit for this?….promote some mild cleaning when I apply and work the connector, but NOT too abrasive over time with the minor vibrations of an automobile?



Is DeoxIT L260D Grease OK to prevent corrosion in connectors (wire nut) with copper to aluminum wires together?

Q: (18584)

Is DeoxIT L260D Grease OK to prevent corrosion in connectors (wire nut) with copper to aluminum wires together?
I have a house with AL wire but installing new copper wire.


Cleaning of AC connectors; Pin and Sleeve, Single Pole Staging Cam-Lock, and Twist Lock?

Q: (18520)

I’m wondering what you recommend for the cleaning of AC connectors; Pin and Sleeve, Single Pole Staging Cam-Lock, and Twist Lock.
Some examples:  Primarily Hubbells HBL2613, HBL 2623, HBL460P7WR, HBL330C6W, HBL400 series.


Having Fuse box connection problems on BMW Motorcycles and Mercedes vehicles?

Q: (18407)

I own a company that services motorcycles, plus older BMW and Mercedes vehicles which have continuing problems in the fuse box connections to pin type fuses. Have used Stabilant 22 in the past with very marginal success, but it is hard to use and hard to find. Do you have any products to help?

Can I use DeoxIT® on Car batteries and other connections?

Q: (18405)

I use your DeoxIT® D-Series and DeoxIT® Gold G-Series products on my audio/video and computer systems. I have a 12 years old car and this is the first time that I have to change battery. Since your products are so excellent in the audio field, I thought to clean the oxidized termination in the car with the red DeoxIT® D-Series, and then later put the DeoxIT® Gold on it. Do you recommend this?

So, can I use them on the new battery and the old termination? Do you recommend putting any grease between the termination wire and the new battery or the DeoxIT is enough?

Refurbishing an old Car (automotive) Hi-Fi system – Which products?

Q: (18389)

I’m planning to refurbish the contacts of my old car-HiFi system. Is it a good 3-day practice to use first the DeoxIT® D-Series for cleaning the contacts, then the DeoxIT® Gold G-Series for the golden contacts and at last to seal them with the DeoxIT® Shield S-Series? Or is it a disadvantage to mix up the products this way? The car is exposed to the mid-European weather the whole year, so moisture and fast temperature changes is a problem even inside of it.

Electronic locks not working?

Q: (18376)

Electronic locks not working, Help! We install and service many electronic locks and controllers, mostly on industrial and institutional applications, that are exposed to the elements and have a terrible time with oxidation and corrosion on contacts.  It gets so bad in some areas (coastal locations or on marine equipment), the locks/equipment totally stops working. What do you recommend?