WD-40 Specialist Contact Cleaner Spray, 13.3 oz 6-Pack — Fast-Drying, No-Residue for Electronics & Battery Terminals

WD-40 Specialist® Contact Cleaner is a fast-drying, no-residue spray that removes oil, dirt, and flux from electrical contacts, battery terminals, switches, and motors without disassembly.

Keep electronics, automotive connectors, and delicate electrical components performing reliably with a spray formulated to clean without leaving residues. This larger, 13.3 oz can (sold in a six-pack) is an Amazon-exclusive size designed for busy shops, maintenance crews, and home mechanics who need extra supply and less refilling. The aerosol’s formulation evaporates quickly and is safe for many plastics, rubbers, and circuit-board assemblies when used as directed.

How does this contact cleaner restore electrical performance?

The formula lifts and removes soils that interfere with conductivity—such as oils, grease, flux, and condensation—so contacts and terminals can re-establish solid electrical connections. Because it evaporates without leaving a film, there’s no need for wiping or prolonged drying times after application.

• Removes oil, dirt, and flux residue from contacts and switches
• Fast evaporation minimizes downtime
• No-residue finish preserves conductivity
• Safe for many plastics and rubbers when used per instructions

Can I use this on sensitive electronics and circuit boards?

Yes—it's formulated for use on circuit boards, connectors, and internal electrical components without harsh solvents that can leave residue. Use short bursts at a safe distance and allow full evaporation before powering devices back on.

• Designed for circuit boards, relays, and connectors
• Non-corrosive, fast-drying blend reduces rework
• Works on internal contacts without disassembly in many cases
• Avoid prolonged soaking of components; follow manufacturer guidance

Is this product suitable for automotive battery terminals and motors?

This cleaner is ideal for battery terminals, motor contacts, switches, and electrical panels commonly found in vehicles and equipment. It removes contaminants that can contribute to poor connections and intermittent faults, helping restore reliable operation.

• Cleans battery posts, cable clamps, and motor brushes
• Removes grime that causes voltage drops and arcing
• Fast-drying to reduce time spent off-line
• Works as part of routine electrical maintenance

What are the practical usage tips and safety considerations?

Apply in a well-ventilated area, use short controlled sprays, and keep the can upright. Do not apply to energized circuits unless the device is designed for live maintenance; always follow equipment safety instructions and test compatibility on plastics or coatings first.

• Use short bursts and distance to avoid over-penetration
• Ventilate area and avoid ignition sources while spraying
• Test on a small plastic or coated area if unsure about compatibility
• Allow complete evaporation before re-energizing components

Who is this for: technicians, electricians, automotive mechanics, hobbyists, and facility maintenance teams who need a reliable, fast-drying contact cleaner in larger, shop-ready quantities. The six-pack 13.3 oz cans suit busy environments where repeated cleaning is routine—ideal for garages, production lines, and maintenance closets that benefit from staying ahead of electrical contact problems.