Koch-Chemie (RRR) Reactive Rust Remover | Acid Free Iron Remover

Koch Chemie Reactive Rust Remover (RRR) is a powerful, pH-neutral iron fallout remover designed to dissolve superficial rust, metal particles, brake dust and other inorganic contamination from exterior vehicle surfaces.

Features & Benefits

• pH-neutral reactive iron remover
• Removes iron particles, fallout and superficial rust
• Effective on burnt-in brake dust and non-organic contamination
• Turns violet as it reacts with contamination
• Gentle on materials when used correctly
• Longer contact time helps dissolve stubborn particles
• Suitable for paint, wheels and exterior surfaces
• Essential preparation step before polishing or protection

Koch Chemie Reactive Rust Remover is designed to remove embedded metal contamination that regular washing cannot safely eliminate. These particles often come from brake dust, rail dust, industrial fallout and road contamination, and they can bond into paint, wheels and exterior surfaces over time.

The pH-neutral formula uses reactive agents and high-performance detergents to dissolve superficial rust, metal particles and burnt-in brake dust. As the product reacts, it turns violet, making it easy to see where contamination is being broken down.

Reactive Rust Remover is especially valuable before machine polishing, ceramic coating application, wax application or any major exterior detail. By chemically removing iron particles before contact decontamination, you reduce the amount of contamination that needs to be removed with clay, helping lower the risk of marring.

For a complete decontamination process, wash the vehicle first with Koch Chemie Gentle Snow Foam or Koch Chemie AutoShampoo, then use Reactive Rust Remover before claying or polishing. For tar and bitumen contamination, follow with Koch Chemie Teerwäsche A where required.

Pro Tip

Use Reactive Rust Remover before clay barring. Chemical decontamination first removes iron particles that would otherwise be dragged across the paint, making the clay stage safer and more effective.

Frequently Asked Questions

What does Reactive Rust Remover remove?

It removes iron fallout, metal particles, superficial rust, brake dust and other inorganic contamination.

Is it pH neutral?

Yes. Reactive Rust Remover is pH neutral and designed to be gentle on materials when used correctly.

Can I use it before ceramic coating?

Yes. It is an excellent decontamination step before polishing, paint preparation and coating application.

Paint Decontamination

1. Wash and rinse the vehicle thoroughly first.


2. Apply Reactive Rust Remover to cool exterior surfaces.


3. Allow the product to dwell while it reacts and turns violet.


4. Do not allow the product to dry on the surface.


5. Agitate lightly only if required.


6. Rinse thoroughly with clean water.


7. Repeat on heavily contaminated areas if needed.

Wheel Decontamination

1. Spray onto cool wheels after rinsing loose dirt away.


2. Allow the product to react with brake dust and iron particles.


3. Agitate with a wheel brush if necessary.


4. Rinse thoroughly before drying.