Your cart is empty.
Your cart is empty.Less time fixing and more time enjoying. WD-40 Specialist Penetrant makes it easy to quickly get the job done right so you bask in your accomplishment and move on. Professional-grade WD-40 Specialist Penetrant formula works fast to break the toughest jams and protects parts from future rust & corrosion. Leaves a thin protective layer that prevents future corrosion without attracting dust or other particles. Designed with safety in mind: Low odor formula, VOC compliant in 50 states. Backed by the excellence of WD-40, the world leader in residential and commercial lubricants. Effective in breaking bonds for most materials - metal, rubber, plastic and more. Penetrates up to 2x faster than the competition* - Penetrates rust to free up stuck, frozen, or seized equipment and parts - Safe to use on metal, rubber and plastic parts - Ideal for use on nuts, bolts, threads and locks - 50-state VOC compliant. *Test Lab: Fred Cuneo (3rd Party); Nail Climb Test; Test date: 03/2021. **Test Lab: WD-40 Co. Technical Center (Pine Brook, NJ); ASTM B117; Test date: 02/2021.
JohnB
Reviewed in the United States on March 1, 2025
Great for lubricating. For hand tools, I first use this, such as for pliers and wire cutters, but then I use the separate rust inhibitor spray. The rust inhibitor spray lasts much longer!
Book buyer
Reviewed in the United States on February 25, 2025
Exactly as described.
Jim
Reviewed in the United States on February 17, 2025
Works well! Would buy again.
Bob
Reviewed in the United States on February 12, 2025
Classic, functional
Mark Lubbock
Reviewed in the United States on January 4, 2025
Most of the repairs made for vehicles and things around the house like mowers are done by myself. The need to loosen a rusted fastener or nut arises often. My practice in the past was to use a combination of applied heat and regular WD-40 or some other lubricant. A friend suggested I try this WD-40 penetrant and let it soak in to see if I noticed a difference.I bought this and tried it on a repair job on my old mower. Years of use ensured the bolts I wanted to remove was solidly rusted and immovable. On one bolt I sprayed the regular WD-40 and the other I tried this new-to-me product. Both were allowed to soak for half a day. (There may be an ideal soaking time, but I've not found any data that is universal for all applications.)When the bolts were broken loose there was an immediate difference between the two products tested. The penetrant served to loosen the bolt MUCH better and broke loose with very little effort or leverage. The other required a measured amount of force, and the wrench slipped off twice before the bolt came loose.I was convinced of the value of this product. Since then, I've used this routinely on cars, motorcycles - you name it. One star was deducted due to the fact that there were some situations where no amount of spray and no amount of soaking served to loosen bolts/screws. Multiple times in fact. I could not identify the factors that made some work and others fail to loosen. There are times when the application of the spray, no matter how thorough or how long I let it sit, just made no difference at all.Not a failure in my opinion, but the product is not full magic working on every stuck fastener. It is my primary go-to and remains a vital component in my maintenance tool set.
SirEpicIndividual
Reviewed in the United States on January 25, 2025
It's WD-40! This is a well established product that is known to work beyond as advertised.
Chrisann Cochran
Reviewed in the United States on January 19, 2025
I used it for loosening the rust on my camper hitch so I could hook it up for traveling. As an older woman, it makes it easier to for me to keep it on hand for future use.
Major review reader myself 2
Reviewed in the United States on January 13, 2025
Doesn’t smell like you even used it! So nice having the straw flip up and stay attached. Bonus is it works without needing to flip the straw up. Is a pretty big can & a bit of a trick to press the button down. Almost takes two hands to have control of where you want to spray. Still the only one I will be buying again. Never knew WD40 was a brand. The brand has various kinds for different uses.
Recommended Products
