WD-40® Specialist® Penetrant works quickly to loosen corroded fasteners and stuck parts. Thanks to the capillary action it quickly penetrates into tight crevices, threads and seams to break the bonds that hold stuck parts together. WD-40 Specialist Penetrant also helps to prevent further rust and corrosion. Recommended for nuts, locks, bolts, chains, bearings, fasteners, pulleys, pipes, conveyors, shafts, tools and fittings.

• Quickly penetrates and releases rusted or corroded parts
• Loosens seized fixings and mechanisms
• Lubricates to prevent rust and corrosion
• Low surface tension formula
• Great for hard to reach places