In the world of professional detailing, choosing the right cutting compound can make all the difference. Koch Chemie's H8.02 and H9.02 are two powerhouse compounds that dominate the heavy-cutting segment. Let's dive into a detailed comparison to understand their unique strengths and applications.

H8.02: The Precision Powerhouse

Key Features

• Medium to heavy cutting power
• Silicone-free formula
• Hologram-free finish
• Exceptional working time
• Lower dust formation

Perfect For

• Medium to severe defects
• Single-stage paints
• Oxidized surfaces
• Deeper scratches
• Professional body shop applications

H9.02: The Evolution of Excellence

Key Features

• Maximum cutting performance
• Enhanced dust control
• Improved working properties
• Extended polish time
• Superior finish quality

Ideal Applications

• Severe paint defects
• Heavy oxidation
• Deep scratches
• Fresh paint correction
• High-volume detail work

Head-to-Head Comparison

Cutting Power

• H8.02: 7.5/10
• H9.02: 9/10

Finishing Quality

• H8.02: Excellent, minimal follow-up needed
• H9.02: Outstanding, often one-step solution

Working Time

• H8.02: Extended working window
• H9.02: Longer working time with better control

Dust Control

• H8.02: Very good dust suppression
• H9.02: Superior dust control technology

Choosing Between the Two

Choose H8.02 When:

• Working on medium paint defects
• Needing versatility across different paint types
• Focusing on body shop applications
• Requiring a reliable all-around compound

Choose H9.02 When:

• Dealing with severe defects
• Working on harder paint systems
• Needing maximum cutting power
• Prioritizing efficiency in heavy correction

Professional Tips

1. Pad Selection
• H8.02: Works best with medium to heavy cutting pads
• H9.02: Optimal with heavy cutting pads, adaptable to medium pads
2. Speed Settings
• H8.02: 1200-1500 RPM
• H9.02: 1400-1800 RPM
3. Work Area
• Both compounds perform best on 2x2 ft sections
• H9.02 allows for slightly larger working areas

Conclusion

While both compounds excel in their respective applications, H9.02 represents Koch Chemie's latest innovation in heavy-cut technology. Its improved formula offers enhanced cutting power and superior dust control, making it the go-to choice for severe correction work. However, H8.02 remains a versatile option for medium to heavy defects, particularly in body shop environments.