KOCHCHEMIE Koch-Chemie - Reactive Rust Remover - pH Neutral Cleaner; Use for Rust, Metal Particles, Burnt-in Brake Dust and Other Pollutants; Gentle Formula (500 milliliters)

This is absolutely awesome for removing built up brake dust, dirt, & surface rust. We wetted the suspension (normal water) on this c8 and then sprayed RRR on and let sit for about 3-5min. Irritated it with a brush and hosed it off and comes out spotless. The smell takes some getting used to but besides that we love everything about it. Will definitely be using this in the future.

It works.

Removed old rust stains from toilet.

I needed to clean the rust off my car's brakes. I saw this product and the reviews and decided to buy it. I liked it. I thought it was very good and it really did its job.

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.

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.

Works as should results before and after on brake disc

Only problem I had was the spray nozzle broke as soon as I put it on the bottle. The liquid does work well on the rust. Hoping I can get a replacement nozzle from the company. Just don't know how to contact them.