Can You Use WD-40 On Electrical Contacts? Here’s The Truth

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Any modern-day home houses a wide range of electrical components, electrical contacts, relays, circuit breakers, conductors, and sockets. These electrical components have numerous electrical connections such as terminal, interlocking, sliding, fast-on, etc.

The prolonged use of the electrical services of these components may lead to deteriorated contacts and malfunctioning. Applying WD-40 Specialist Fast Drying Contact Cleaner to your contacts could sort out your electrical problem before you spend money on an electrician.

When cleaning electrical contacts, it is suggested that you use WD-40 Specialist Contact Cleaner, as it removes 95% of the most common surface contaminants. Its patented Smart Straw technology will blast away dirt, oil, flux residue, and condensation from sensitive electronics, leaving no residue.

WD-40 has a “secret formula” manufactured in four different plants, each plant situated in a different country, before being shipped out to other companies, which blends and packages the WD-40.

Only then does the WD-40 get shipped out to consumers. It sounds like a James Bond movie with all the secrecy involved, indicative of the high-quality product that is WD-40.

This article will discuss if you should use WD-40 Specialist Fast Drying Contact Cleaner on electrical contacts and if they will stop working if applied.

Can You Use WD-40 On Electrical Contacts?

Do you phone an electrician every single time that you encounter an electrical problem? Your electrical problems could be due to contacts interrupting the service. Most of a home’s electrical controls are situated in boxes that can be affected by numerous types of humidity issues, therefore being exposed to dust, rust, and oxidation.

WD-40 Specialist Fast Drying Contact Cleaner’s solvent blend is safe to use on metal parts and most plastics. It is commonly used to clean a wide variety of electronic contacts and enhance equipment’s optimal performance.

WD-40 Specialist Fast Drying Contact Cleaner dries quickly, leaving no residue (removing 95% of surface contaminants), making it one of the best products to use on the following:

  • Electric Panels
  • Circuit Boards
  • Electric Controls
  • Battery Terminals
  • Switches
  • Precision Instruments
  • Electric Controls

WD-40 Specialist Fast Drying Contact Cleaner is widely regarded as the “industry workhorse” in cleaning these surfaces mentioned above, and you can use it on electrical contacts. In fact, it is recommended that you do!

Does WD-40 Clean Electrical Contacts?

WD-40 Specialist Fast Drying Contact Cleaner is one of the leading brands globally when it comes to cleaning electrical contacts and is VOC compliant in 50 states. Its patented Smart Straw Technology is one of the reasons this product blasts away oil, dirt, flux residue, and condensation from both sensitive electrical equipment and electronics, always with pinpoint precision.

Step-By-Step Guide How To Clean Electrical Contacts With WD-40

Here is a quick guide that will help you clean electrical contacts, the ones you can clean yourself, and the ones which a professional electrician should rather do.

Step 1-Switches And Wall Sockets

When you find that a wall socket or switch is not working properly, do the following:

  • Disassemble the socket/switch.
  • Reinsert any disconnected cables.
  • Spray (treat) the electrical connectors and terminals with WD-40 Specialist Electrical Contact Cleaner .
  • Allow product to dry and power up the socket/switch.

If you find that the switch is damaged, it will need to be replaced.

Step 2- Junction Boxes

Junction boxes contain small and large groups of conductors that are connected with cap nuts. When a socket or light point is not working, do the following:

  • Make double sure that the problem is not coming from the electrical service itself.
  • If not, start tracing it back to the conductors that reach the service from the junction box.
  • Confirm that the terminals are properly connected.
  • Loosen the affected terminals and apply the WD-40 Specialist Electrical Contact Cleaner .
  • Retore the clean contacts.
  • Apply to all the other connectors in the box while you are at it.

Step 3- Main Switches & Circuit Breakers

When it comes to removing and reassembling the main switch and circuit breaker controls, it could be too difficult a task for someone without electrical experience and should probably be left to an experienced electrician.

  • Look for any disconnections and apply WD-40 Specialist Electrical Contact Cleaner

Step 4- Assorted Types Of Electrical Equipment

Household appliances and power tools all have electrical contacts. These contacts are typically always found inside the body of the appliance. When you want to inspect and do maintenance, it involves opening them up. If the appliance is under warranty, make sure that opening them up yourself will not lead to loss of warranty coverage.

  • Open up the electrical appliance.
  • Find the electrical contact.
  • Apply some WD-40 Specialist Electrical Contact Cleaner to the parts that require some maintenance.

Step 5- Electrical Contacts On Cars & Motorcycles

All car and bike owners know that water and other substances can interfere with the vehicle. If your vehicle is malfunctioning, do the following:

  • Check problem area and evaluate with a tester.
  • Reconnect any detachments.
  • Apply WD-40 Specialist Electrical Contact Cleaner which will penetrate the hard-to-reach areas.

WD-40 Specialist Electrical Contact Cleaner restores electrical conductivity and will eliminate the danger of short circuits. Its non-conductive secret formula will evaporate quickly and leave no residue behind. You can use it on metal, plastic, and rubbers.

Will Electrical Contacts Stop Working If You Use WD-40 On Them?

Not if you use WD-40 Specialist Fast Drying Contact Cleaner on your electrical contacts. It is designed to remove the contaminants that cause the current leakage and component failure.

Removing condensation is one other attribute that is very helpful when electrical contacts have been exposed to water or humidity, and the spray does not leave a residue that could stop electrical contacts from working.

The product is a non-conductive spray and is designed to provide excellent hassle-free cleaning:

  • Removes Dirt
  • Removes Dust
  • Removes Condensation
  • Removes Flux Residue

This contact cleaner, rather than causing electrical contacts to stop working, give them the best chance to work again properly!

On What Other Products Can You Use WD-40?

When doing some research, I found some customer reviews on the product, and it indicated how WD-40 Specialist Fast Drying Contact Cleaner was of use to them in cleaning the following:

  • Guitar Pot (Electric Guitar)
  • Yamaha Amplifier
  • Bass Guitar
  • Golf Cart Battery
  • Nintendo Game Consoles
  • Compressors
  • Vacuums
  • Generators
  • Computers
  • Car’s Electric Components


WD-40’s product range covers many fields and uses. However, when cleaning electrical contacts, make sure to choose the WD-40 Specialist Fast Drying Contact Cleaner to assist with the job.

It cleans 95% of all surface contaminants and does not leave any residue! Now that’s what they mean by cleaning without a trace.

The general reviews on the product speak of a product designed to do what it says and a little extra.

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