Professional Industrial Rust Penetrant Aerosol, 11oz, Deep Penetrating Spray, Ideal for Penetrating Rust Bolts, Rust Loosner, Bolt Lubricant

This was the best thing ever. I let it sit as instructed and when I went back to test if it would allow me to turn the lever I needed it for, it was like new

I used this product to remove the rust off of my truck's metal rack. It is very easy to apply precisely where needed using the narrow nozzle. I am impressed with the end results. I have not tried it on large spot but using it on small or limited areas worked perfectly.

This rust penetrant works as described in the description. The smell isn't overwhelming, and it is easy to use. The size is comparable with name brands. A good value for the price.

Dealing with weather in the PNW, a lot of things tend to accumulate rust from the moisture and rainfall. This rust penetrant spray is very handy to have around for things that have either already succumbed to rusting or might be in danger of rusting. The aerosol spray works well like you would expect and includes a straw for more precise spraying.You can instantly see the effects take place, surface rust runs off with the initial spraying but a lot of rust needs to let it sit and then maybe still be scrubbed off. This spray doesn't leave quite as much of a goopy residue as a previous rust protection spray which I like but also I wonder if it will prevent future corrosion as well. Either way this stuff works really well on rust and can be a life-saver sometimes.

Quality penetrant from a USA company. Overall the product is exactly as described, and performs as expected.

Love this 3rd-party competitor to the big-name you-know-what.Works better IMHO and is a nice big can to last years for those much-needed times when you need to use.

I've been using the other well known penetrating spray on the crank of our 16 ft trailer and to loosen the bolts for the blades on our zero turn mower with no luck. A couple squirts of this deep penetrating spray and I'm impressed. I know I used half a can of the other spray and got no where. This spray works great.

Overall, this is a really good product. I am not a professional mechanic or repairman so I can't say exactly how well this works compared to other brands but I am not convinced it is any better. It does loosen nuts, especially baked on ones in the engine bay. I used some common WD-40 for a comparison and I didn't notice a difference. I see no mention of it being a rust-converter so I assume it is a light coating of oil that protects the metal. I am happy with it but for the price I would choose another alternative. I don't notice any special characteristics of this product. It's good, just expensive.