WD-40 Specialist Contact Cleaner Spray with Smart Straw

WD-40 Specialist Contact Cleaner Spray with the patented Smart Straw quickly removes oil, dirt, flux residue and condensation from sensitive electrical components and evaporates without leaving residue.

Designed for technicians, hobbyists and maintenance teams, this twin pack of 11 oz cans brings a precision spray solution for cleaning electrical contacts, printed circuit boards, switches and control panels. The Smart Straw delivers pinpoint accuracy so you can target grime in tight areas while minimizing overspray. Fast-drying and 50-state VOC compliant, the formula is engineered to lift soils and contaminants that interfere with reliable conductivity without leaving a film.

How does the Smart Straw improve precision during cleaning?

The Smart Straw integrates a rigid straw with a flip-up spray option so you can switch between focused jet and broad spray quickly. That control helps you avoid spraying nearby components or sensitive plastics while accessing narrow pins and connectors.

• Flip-up straw for concentrated pinpoint spraying.
• Broad spray mode for covering larger areas fast.
• Reduced overspray keeps adjacent parts protected.

Will this contact cleaner leave residue or damage electronics?

This contact cleaner is formulated to evaporate rapidly and leave no residue when used as directed, making it appropriate for most electrical and electronic surfaces. It removes oils, flux and condensation that can cause intermittent faults without leaving a conductive film.

• Quick-drying formula minimizes downtime after cleaning.
• Residue-free evaporation for reliable contact conductivity.
• Safe for many metals, rubbers and plastics — always test unfamiliar plastics first.

Where should I use WD-40 Specialist Contact Cleaner around equipment?

Use it on printed circuit boards, relays, switches, connectors, electric panels and precision instruments where contaminants affect performance. It’s also useful for cleaning tools and test equipment before calibration or repair.

• Printed circuit boards and component leads.
• Switches, relays and connector pins.
• Control panels, meters and precision instruments.

What precautions should I take when using this cleaner?

Although the product is designed for safe use on many surfaces, avoid spraying adhesives, device screens and keyboards, and always ventilate the area. Test on a small plastic area first and follow standard ESD and power-isolation procedures before cleaning energized equipment.

• Power down and discharge equipment where possible before cleaning.
• Test on plastics and avoid adhesive bonds and touchscreens.
• Use in well-ventilated spaces and follow local VOC regulations.

Who is this for: Professionals in electronics repair, industrial maintenance teams, avionics and automotive technicians, and serious DIYers who need a dependable, residue-free contact cleaner that delivers both precision and volume. The twin 11 oz cans give spare capacity for workshops or multi-job scenarios, and the Smart Straw design speeds detailed work while protecting nearby components.