Stops Rust and Converts Rust Spots to Leave A Primed Surface Ready to Paint, Professional Rust Repair Manufactured in USA – Sprayer Included

This stuff is amazing, bar none. And really, the price isn't bad when you consider the price of buying the ingredients separately and mixing it yourself would only save you a few bucks per gallon and probably not work as well. Basically this consists of ~%35 phosphoric acid, ~%5 citric acid, and some surfactants (alcohol and NP9.5) to help the solution penetrate the rust and scale. The citric acid helps dissolve the loose rust and make it water soluble, and the phosphoric acid reacts with the rust (iron oxide) converting it into iron phosphate, which is actually an anti-rust coating that is commercially applied to some steel products. If you prep properly by removing the loose rust and paint and making sure the surface is free of oils, you'll end up with all the rusty brown spots turning a satisfying black color, and the excess acid drying up to a white powder. Then you just rinse off the excess and optionally paint to protect the bare steel that didn't get converted. I bought this after watching a YouTube video that compared most of the "rust converting" products on the market, including the primers, aerosols, and acids. This blew the competition away. I had to try it for myself and I'm glad I did! You should wear gloves and eye protection while using it, as while it's the consistency of soapy water and comes in a household spray bottle, the spray will definitely sting your eyes, and if some spray dribbles out of the bottle onto your hands you can feel it dissolving the top layers of your skin like bleach (your fingers get slippery). However, it doesn't stink and it washes off easily with water. Note that this is not a "quick fix", the solution takes one to three days to convert the rust, and on heavily rusted objects you may need to apply two or three times, allowing the solution to dry in-between. But the results are amazing. My bottle saved a totally trashed wheelbarrow, protected another wheelbarrow that was starting to rust in the basket, fixed up my super rusty cast iron digging bar that I've had to previously grind every year, and cleaned up a bunch of rusty lug nuts, wheel mounts, and rims on an old car. And I still have 1/3 bottle left. I still plan to paint most of those objects for extra protection, but I'm a believer and will definitely be buying this again in the future. Now if you'll excuse me, I have some rusty lawn furniture and tools to hit next.

Removes rust

Works pretty good

Very good rust hasn't come back better than any other product I've used

fantastic product. Melts away rust. Much better than Rustoleum Or CRC

This kind of rust converter works good. The issue with this particular item is with the trigger sprayer. First it leaks and it runs out all over your hand. Second, it sprays too large of a quantity. This kind of rust converter doesn't work right when there is too much or too little. Include a trigger that sprays less volume per squeeze so that a person can squeeze it to get a good fan and spray pattern for coverage without dispensing way too much material. The aerosol spray cans using this type of converter dispense the right amount of material. Enough pressure for a spray pattern but the right amount of material so that the item can be sprayed until evenly covered and then move on to the next area. Trigger sprayers come in different types so choose one to match the correct dispense rate to ship with this bottle. Even when squeezing the trigger a little to try to limit the quantity, it still sprays way too much and the converter drenches the area and drips and run.

Used this to prime the exposed supports made of red iron on my patio cover. Easy to spray and let dry and then coat with the paint I ordered.

Works. Normally use 2 coats and easy it within 1 hour or less

While this is expensive then it has done its job very well thus far. Have used it over few years and most of it is still left: you don't need much for smaller areas. Another funny thing is that it doesn't evaporate: even a tiny amount will remain in the container where you used it from. So remember to use up all of it or pour what's left back in the bottle.

Disolves rust. excellent

Me gusta este producto mucho. 👍

Works as well as per my research before purchasing, can also be painted on the next day. Expensive but worth it overall.

This stuff is amazing. A little spray, next day rust is gone.