Koch-Chemie Heavy Quick Cut B9.01 — Fast-Cutting Coarse Compound

Koch-Chemie Heavy Quick Cut B9.01 — Fast-Cutting Coarse Machine Compound

Koch-Chemie Heavy Quick Cut B9.01 is an aggressive machine polishing compound engineered specifically for high-speed scratch elimination on scratch-resistant OEM ceramic clearcoats and tough industrial finishes. Formulated with rapid-breakdown aluminum oxide abrasives, B9.01 eliminates severe weathering, overspray, and sanding marks up to P1200 grit in record cycle times while producing virtually zero airborne dust.

Optimized for rotary machine polishers and paired with lambswool cutting pads, B9.01 delivers an aggressive initial bite that rapidly transitions into a clean finish without burning or scouring clearcoats. 100% silicone-free and bodyshop-safe.

Step-by-Step Professional Application Protocol

1. Prepare the vehicle with thorough decontamination and mask delicate plastic and rubber edges.
2. Shake B9.01 vigorously before opening.
3. Apply 4 pea-sized dots of compound onto a primed Koch-Chemie Lambswool or Heavy Cut foam pad.
4. Spread evenly over a 40 x 40 cm area at low speed (rotary: ~800 RPM).
5. Increase speed to 1200–1400 RPM and guide the machine crosswise with moderate initial pressure.
6. As the scratch pattern disappears and the compound becomes oily, reduce pressure to avoid panel overheating.
7. Wipe clean with a plush microfibre cloth and inspect with high-CRI inspection light.
8. Follow up with Koch-Chemie Fine Cut F6.01 or Micro Cut M3.02.

Pro Detailing Tips, Do's & Don'ts

• DO: Monitor surface temperatures closely on modern plastic bumpers and thin clearcoats.
• DO: Keep lambswool pads fluffed using a spur tool between polishing sets.
• DON'T: Do not use dry or unprimed wool pads to prevent swirl burns.
• DON'T: Do not allow compound to dry out on unworked body panels.

Volume & Packaging Selection Guide

Opt for 250 ml for individual projects and custom bodywork; choose 1 L for high-volume collision centers and production detailing environments.