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)

I don’t know what ancient German spellbook KOCHCHEMIE pulled this formula from, but this stuff *obliterates* rust like it owes it money. One spray and the corrosion practically packs its bags and leaves in shame. The chemical reaction happens fairly quickly, pretty cool to watch.Let’s address the the smell. It smells like hot pennies mixed with expired pickles and sadness. You’ll question your life choices for a moment... but then you’ll see the rust vanish before your eyes, and all is forgiven. Worth the money, I wish there was more for the money but still would consider it decent value for the performance.Bottom line: it’s like a spa day for your metal parts. Absolutely worth the stank

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.

Really worked well. Resolved the rust right before my eyes.

Works good but smells terrible!

Best Rust Remover in the game

Chemicals should smell bad if they are any good. This stuff doesn’t smell great but it works exactly as promised. What an amazing product. I will order more products from this brand.

Removed old rust stains from toilet.

awful smell even after you wash it for 20 minutesand not working as promised