WD-40 Contact Cleaner 400 ml is an aerosol cleaner formulated to remove dirt, oils, flux residues and other contaminants from electrical contacts, circuit boards, connectors and electronic components. The fast-evaporating, residue-free formulation is intended to clean without leaving conductive or insulating deposits, helping to restore electrical contact performance and reduce intermittent faults in assemblies and devices.
Advantages
The product cleans rapidly and evaporates quickly, leaving no residue that could affect conductivity. It is suitable for delicate electronic assemblies because it does not require mechanical abrasion and is compatible with common metal contacts and many electronic substrates. The aerosol format provides targeted application to small or hard-to-reach areas, enabling efficient maintenance and repair operations.
Suitable for
- Cleaning electrical contacts and connector pins
- Removing flux and contamination from printed circuit boards
- Maintenance of switches, relays and sensors
- Preventive cleaning of control panels and instrumentation
- Restoring intermittent or poor electrical connections
Key specifications
- Form: aerosol spray, 400 ml container
- Evaporation: fast-drying, low-residue formula
- Application: electronic contacts, circuit boards, connectors, switches
- Compatibility: suitable for most metals and common electronic components (avoid prolonged exposure to soft plastics and painted surfaces)
- Use environment: for indoor electronics maintenance and repair
How to use
Before use, power off and disconnect equipment from mains and batteries. Shake the can well and spray short bursts from a distance of 10–20 cm to cover the contaminated area; for concentrated deposits, allow the solvent to penetrate briefly, then repeat application if necessary. Use in a well-ventilated area and allow components to dry completely before reapplying power. Avoid prolonged soaking of non-metallic parts and do not use on energized equipment.
Usage recommendations
Test on a small, inconspicuous area if compatibility with plastics, rubber or coatings is uncertain. Use appropriate personal protective equipment such as gloves and eye protection, and follow local regulations for aerosol and solvent disposal.
