Rust remover WD-40 5L canister — multipurpose corrosion remover and lubricant

WD-40 rust remover in a 5 L canister is a multipurpose maintenance fluid formulated to dissolve corrosion, free seized or corroded parts and provide light lubrication and short-term protection against moisture. Supplied in a large-volume container for workshop or industrial use, the product is suitable for metal surfaces, hand tools, fasteners, hinges and mechanisms that require rust removal and temporary anti-corrosion treatment.

Advantages

This 5 L canister delivers a concentrated, ready-to-use formulation that penetrates and loosens rust to restore movement in corroded joints and threaded connections while leaving a light lubricating film. The product displaces moisture, reduces further oxidation for a limited period and is designed for repeated application on working parts. Packaged for professional and hobbyist environments, the canister format reduces packaging waste and enables controlled dispensing for larger maintenance tasks.

Suitable for

• Releasing seized bolts, nuts and threaded fasteners
• Cleaning and restoring hand and power tools affected by rust
• Treating hinges, locks and mechanisms on doors, gates and equipment
• Preparing metal parts for short-term storage or further metalwork
• Workshop and light industrial maintenance tasks requiring corrosion removal

Key specifications

• Volume: 5 litres canister suitable for multiple applications
• Function: rust dissolving, penetration, light lubrication and moisture displacement
• Application surfaces: ferrous metals, steel tools, fasteners and mechanical joints
• Form: liquid maintenance fluid for brush, spray or soaked-wipe application
• Packaging: reusable canister intended for workshop dispensing

How to use

Apply the rust remover directly to the corroded area by pouring, brushing or using a spill tray and soaked cloth, depending on access and surface size. Allow the product to penetrate for several minutes to soften and dissolve rust; for heavy corrosion, repeat applications and mechanical agitation with a brush or scraper may be required. After loosening the rust, wipe away residues with a clean cloth and, if necessary, reapply a small amount for light lubrication and short-term protection. Ensure adequate ventilation during use and follow standard workshop safety practices.

Usage recommendations

Use suitable personal protective equipment such as gloves and eye protection when handling the fluid. Test on an inconspicuous area if surface finishes or coatings are present. Store the canister in a cool, dry place away from heat sources and direct sunlight. For long-term protection after rust removal, consider applying a dedicated long-term corrosion inhibitor or protective coating.