Purpose and Specifications

The WD-40 WD-401/02 Universal Lubricant is your go-to 150ml spray for loosening rusted bolts, displacing moisture from spark plugs and electrical contacts, and protecting metal surfaces from corrosion. This premium WD-40 product penetrates deep to free stuck parts after sitting for years, cleans away grease and grime without harsh scrubbing, and leaves a thin protective film that repels water and prevents rust buildup. Ideal for automotive repairs, home maintenance, and workshop tasks, it works reliably in temperatures from -45°C to +150°C, handling freezing winters and hot engine bays with ease.

• Volume: 150ml aerosol can – compact and portable for quick jobs
• Weight: 0.123kg – lightweight for easy storage in your toolbox
• Shelf life: Up to 2 years unopened; use within 12 months once opened for best performance
• Key benefits: Stops squeaks instantly, protects tools from rust during storage, safe on rubber, plastics, and most paints

When to Use / Replace?

Grab WD-40 WD-401/02 when rusty bolts won't budge after 10,000+ km of neglect, wet electrics cause starting issues in rain, or metal hinges squeak on garage doors. Use it preventively every 6 months on undercarriage bolts and battery terminals to avoid corrosion in salty road conditions. Replace the can when it's empty or after 12 months of regular use to ensure fresh penetrating power – old cans lose effectiveness.

FAQ

Q: Can I use WD-40 on my car’s brakes?
A: No, avoid brakes as it can make pads slippery. Stick to non-friction areas like bolts and linkages.

Q: How long does the protection last?
A: The thin film shields metal from rust for 3-6 months in harsh conditions like coastal or winter roads.

Q: Is it safe for bike chains?
A: Yes for light lubrication, but for heavy chain wear every 500km, pair with a dedicated chain lube for longer life.