WD-40 Specialist Penetrant contains a proprietary blend of ingredients that work fast to free rusted bolts and other stuck parts. The capillary action penetrates into tight crevices, threads, and seams to break the bonds that hold stuck parts together. It helps prevent rust and corrosion from re-forming and leaves behind a lubricating layer. The professional-grade formula is low odor, working effectively without harsh, lingering scents.
Use Penetrant on nuts, bolts, pipe threads and rusted things that are stuck and won't move! It is safe to use on most common application surfaces, including most metals, plastics, and rubbers when used as directed. If unsure, test on a small area first.
The permanently attached Smart Straw® Sprays 2 Ways® delivery system allows for pinpoint application or a wider spray, giving you different options to fit the job.
1Test Lab: WD-40 Co. Technical Center (Pine Brook, NJ); Penetration speed measured using nail climb (time to reach 1.75cm); Test dates: 03/2023; 07/2024
- Penetrates at least 50% faster than the competition for less downtime and faster return to service.1
- Low-odor formula works effectively without harsh scents.
- Safe to use on most metals, plastics, and rubbers when used as directed.
- Does not require California Prop 65 Warning
- 50-state VOC compliant
Works Great On:
Threads
Locks
Nuts
WD-40 Specialist® Penetrant
WD-40 Specialist Penetrant contains a proprietary blend of ingredients that work fast to free rusted bolts and other stuck parts. The capillary action penetrates into tight crevices, threads, and seams to break the bonds that hold stuck parts together. It helps prevent rust and corrosion from re-forming and leaves behind a lubricating layer. The professional-grade formula is low odor, working effectively without harsh, lingering scents.
Use Penetrant on nuts, bolts, pipe threads and rusted things that are stuck and won't move! It is safe to use on most common application surfaces, including most metals, plastics, and rubbers when used as directed. If unsure, test on a small area first.
The permanently attached Smart Straw® Sprays 2 Ways® delivery system allows for pinpoint application or a wider spray, giving you different options to fit the job.
1Test Lab: WD-40 Co. Technical Center (Pine Brook, NJ); Penetration speed measured using nail climb (time to reach 1.75cm); Test dates: 03/2023; 07/2024
- Penetrates at least 50% faster than the competition for less downtime and faster return to service.1
- Low-odor formula works effectively without harsh scents.
- Safe to use on most metals, plastics, and rubbers when used as directed.
- Does not require California Prop 65 Warning
- 50-state VOC compliant
Works Great On:
Threads
Locks
Nuts
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TIPS & TRICKS
Do hard jobs faster. WD-40 Specialist Penetrant loosens seized screws and rusted-bonded parts in minutes.
Prevent corrosion from re-forming on tools, vehicles, and metal surfaces.
Bust through rust inside and out of your vehicle to ensure auto maintenance is done right.
Updating and replacing old plumbing components just got a lot easier — free seized bolts, nuts, and threads in tight spots with the 8" flexible EZ-Reach straw.
WD-40 Specialist Penetrant boosts efficiency in fabrication shops. Keep hinges, fasteners and pulleys moving and the work flowing.
Seized locks and chains. Stuck tools and parts. Whether you’re on a job or DIYing at home, WD-40 Specialist Penetrant blasts through frustrating project roadblocks.
