Purpose and Specifications

WD-40 Specialist Contact Cleaner 300ml is your go-to spray for blasting away oil, dirt, flux residue, and condensation from sensitive electronics and electrical parts. This premium WD-40 formula dries in seconds, leaves zero residue, and safely cleans printed circuit boards, switches, battery terminals, sensors, and control panels without harming plastics, rubber, or metal.

Key practical perks include Smart Straw technology for precise spraying - flip it up for pinpoint accuracy on tight spots like sensors or fold it down for broader coverage. It offers dielectric strength over 25,000 volts to protect electrical flow during cleaning, works in temps from -30°C to 50°C for garage or shop use, and has a shelf life of 5 years unopened. Ideal for automotive repairs, restoring connections that cause misfires or dashboard glitches after 50,000 km of driving.

When to Use / Replace?

• Use it when electrical contacts feel sticky, corrode after 2-3 years of moisture exposure, or fail in low-voltage spots like fuses and relays - common after 30,000 km in humid climates.
• Spray monthly on battery terminals during routine checks to prevent buildup; reapply every 6 months on sensors for reliable performance.
• No replacement needed - one 300ml can handles dozens of jobs and stores indefinitely if sealed.

FAQ

Is it safe on car plastics and electronics? Yes, tested safe on most plastics, rubber, and metal - just test delicate screens first.

How fast does it dry? Dries in seconds, so you can reassemble right away without waiting.

Can I use it on live circuits? Best on powered-off equipment, but its high dielectric strength handles low-voltage safely.