Koch-Chemie - Reactive Rust Remover - pH Neutral Cleaner; Use for Rust, Metal Particles, Burnt-in Brake Dust and Other Pollutants; Gentle Formula (5 Liter)

Over the summer I went all out fixing my 2014 VW GLI and repairing/repainting rusted quarter panels. This stuff works great removing surface rust and it turns purple and runs off. I also used it on panels that had not rusted through the point where there were just fleks of rust and it removed them. It smells horrific but it does the job. If you have thick rust I through the pint it isn’tgonna remove it but it will remove rust stains on top on the pint or where it ran down the pint.

I recently tried the Koch-Chemie Reactive Rust Remover, and I’m extremely impressed with how well it works! This product does an amazing job at dissolving rust particles and iron contamination from my car’s paint and wheels, leaving the surface looking clean and refreshed.One of the standout features is the reactive formula—you can literally see it working as it turns purple while breaking down rust and embedded iron deposits. It’s also pH-balanced and safe for various surfaces, which gives me peace of mind when using it on my car’s paintwork.

Great stuff I recommend getting the neutralizer to go with it, as it will flash oxidize after rinsing.

This is the best wheelbrake cleaner I've ever used nothing comes close to the quality of this product. Only issue it has a very bad smell to it which goes away after a few days. It works extremely well. Two 👍🏾👍🏾 up.

This product works great.Had rust stains in the paint from a steel ladder rack, and the Rrr removed the stains.

This rust remover worked very well for me! I was skeptical at first, but it got the job done. Wish I would have taken pictures of the before and after, but I didn't cause I was eager to try it. I definitely recommend this solution to anyone who has rust on their wheels of their car.

Only tried this stuff once and I’m amazed at how well it works. The reason for 3 stars is because the spray bottle leaks like crazy. Pretty sure more leaked onto my hand then sprayed onto the truck. All in all this is a great product packaged in a garbage container. I will be trying a different brand going forward, if others dont leak, work just as well and cost half the price I will use their products instead.

Excellent product