WD-40 Specialist Long-Term Corrosion Inhibitor

I use this on highly exposed parts on my RV. I primarily use this for prevention in areas prone to rust. The best prevention is to ensure any rust is removed and painted appropriately. That being said, there are simply places that cannot be painted, such as scissor stabilizers or areas exposed to road debris. This is where this product comes into play for me. In one situation, simply because I did not have the time to properly fix it, I just sprayed it on the affected area to prevent further rust. By the time I got back to it, the rust was almost entirely removed. Because it was more of an unsightly issue than a critical component, I let it sit longer. After two weeks, it just about removed all the visible rust and protected the part even in dusty and arid conditions. It didn't seem like it dried out. I was impressed. This will be used for removal, prevention, and quick fix to prevent further damage until it can be properly fixed. Overall, this is a good product, but a bit pricey. Time will tell how much a 6.5 ounce can will last, which will ultimately determine its overall value. For effectiveness, it works great. I would recommend.

Worked great on AC coils etc. Seems to have stopped corrosion in salty environment. Going to put cleaning and WD 40 corrosion inhibitor application on a 6 mo schedule.

Excellent product as always. Spread it on some rusty areas. We’ll see what happens. Come the end of winter.

Works well just a bit pricey

Great product! For rusty hand tools, I take several steps: 1. Place all hand tools in a 2 gallon bucket of distilled white vinegar. 2. Let stay for 3 to 4 days. 3. Rinse off with hot soapy water, and use dish scouring pad as necessary. 4. Dry with hand towel. 5. Spray joints with WD40 lubricant, such as pliers and wire cutters. 6. Spray this rust inhibitor onto each tool while holding tool in a 5 gallon bucket to catch the overspray. 7. Wipe off vinyl or composite or wood (hammers) handles with a soapy rag. Tools are now as new and protected from rust. This rust inhibitor works much better than WD40 penetrant for rust protection. Think of WD40 penetrant and this rust inhibitor as being complementary, not just one or the other.

It’s perfect 👌

Great product

I have a couple older cars and use this product to attack rust, along with Rust-Oleum Rust Reformer. I use the latter on locations that need black, but anything else gets this. It helps if you spray an area and then spread this around with your fingers to get all areas fully coated. The tube attachment helps for hard (or impossible) to reach rusty areas so they get a dose too. I'll be buying more cans.