Purpose and Specifications

WD-40 Specialist Fast Release Penetrant is your go-to spray for breaking free rusted nuts, bolts, threads, locks, and chains that won't budge. This 400ml can penetrates up to 2x faster than competitors, using capillary action to wick deep into tight crevices and seams, loosening seized parts on contact while leaving a protective layer that prevents rust from returning for up to 10x longer.

Safe on metal, rubber, and plastic, it works in temperatures down to -50°C for cold starts and up to 150°C for hot engine jobs. Low-odor formula with an 8-inch flexible straw reaches awkward spots like undercarriage bolts or garage tools. Shelf life is 5 years unopened, perfect for your toolbox.

When to Use / Replace?

• Use it when rusty bolts on brakes, suspension, or exhaust won't turn after sitting 6-12 months in wet conditions.
• Spray on stuck chains, hinges, or locks before wrenching to avoid stripping threads; let soak 10-30 minutes for tough jobs.
• Reapply every 3-6 months on high-wear parts like trailer hitches to keep them moving smoothly up to 50,000 km.
• Replace the can when empty or after 2 years opened to ensure full penetrating power.

FAQ

Q: How long does it take to free a rusted bolt?
A: Works on contact for light rust, but soak 10-30 minutes or overnight for bolts frozen after years of neglect.

Q: Is it safe for my car's plastic and rubber parts?
A: Yes, fully safe on metal, rubber, and plastic without damage.

Q: Does it evaporate like other sprays?
A: No, it leaves a non-evaporating protective film that fights rust long-term.