Koch Chemie Heavy Quick Cut B9.01

The Koch Chemie Heavy Quick Cut B9.01 is a powerful compound designed for the first polishing stage on severely damaged paint or hard factory clearcoats. Its exceptionally uniform abrasive particle size delivers high cutting power while keeping behavior manageable: the product does not dry out on the pad, generates minimal dust, and already builds visible gloss during the correction pass. That means thorough removal of sanding marks down to P1200 grit, combined with a surface that makes the finishing step straightforward. Available in 250 ml for job-by-job use and in 1 L for regular professional work. Follow up with a finishing polish for a flawless, swirl-free result.

What's inside

Bottle of Koch Chemie Heavy Quick Cut B9.01 compound (250 ml or 1 L) with uniform abrasive and low dust generation, suited for hard and heavily damaged paint.

Why this product

• Corrects sanding marks down to P1200 grit in one machine pass, including hard factory clearcoats

• Uniform abrasive prevents new micro-scratches during cutting

• Does not dry out on the pad, allowing longer uninterrupted working time

• Low dust generation for a cleaner work area and significantly less cleanup

• Builds visible gloss during the correction phase, reducing effort for the finishing step

How to use

1. Wash and decontaminate the paint thoroughly (Wash the vehicle and remove iron fallout and tar. A clean, decontaminated surface gives the compound optimal grip.)

2. Apply 3 to 4 dots of product onto a cutting pad (Use a cutting foam pad or wool pad on a rotary or DA polisher. Spread the compound at low speed (800 rpm) across a 40 x 40 cm section.)

3. Polish at 1200 to 1600 rpm with moderate pressure (Make 4 to 6 passes over the section. Let the machine do the work and avoid excess pressure on thin or delicate paint.)

4. Remove residue and evaluate the result (Wipe away residue with a clean microfiber towel. Check under a work light for remaining scratches. Move to Koch Chemie Fine Cut F6.01 for the finishing step.)

Pair the B9.01 with Koch Chemie Fine Cut F6.01 for finishing, the Liquid Elements T4200 orbital polisher for the right machine, and Koch Chemie Protector Wax for lasting paint protection after polishing.