- Surface-Activated Silicon Coating: Forms a silica-rich or SiC-like interfacial layer that promotes chemical interaction with ceramic and resin bonds.
- Enhanced Bonding with Vitrified & Resin Systems: Improves wettability and adhesion in glassy ceramic and polymer-based matrices.
- Promotes Interfacial Reaction: Supports strong chemical bonding during ceramic wheel sintering and resin tool curing.
- Improved Heat Dissipation: Enhances thermal transfer at the grinding interface for cooler, more controlled cutting.
- Controlled Grit Retention: Reduces premature pull-out in vitrified and resin bond tools.
- Optimised for Precision Grinding: Helps achieve low thermal damage and stable surface quality on hard, brittle materials.
- Metal-Bond Restriction: Not recommended for Fe-, Co-, or Ni-based metal bonds due to adverse chemical reactions.
Si Coated Diamond Powder
20+ Years Experience
Ultra-Precision Quality
Customized Solutions
Si Coated Diamond Powder is a surface-modified abrasive optimized for vitrified (ceramic) and resin bond systems. The silicon coating forms an active silica- or SiC-like interfacial layer on the diamond surface, improving wettability and chemical bonding with ceramic and resin matrices. This enhances grit retention, grinding stability, and heat dissipation, enabling cooler, low-damage machining of hard and brittle materials. It is not suitable for iron-, cobalt-, or nickel-based metal bonds, and is primarily used in precision grinding applications where strong bond adhesion and controlled thermal behavior are required.
Features
Specifications
Available Grit Sizes
- Fine grit (10–50 μm): Ideal for polishing, lapping, and precision grinding of ceramics, glass, and electronic materials.
- Medium grit (50–200 μm): Suitable for general-purpose grinding and cutting of stone, composites, and hard alloys.
- Coarse grit (200–600 μm): Designed for heavy material removal, drilling, and shaping of ultra-hard materials like tungsten carbide and advanced ceramics.
Coating Thickness
- Light coating: Enhances wettability while maintaining sharpness, recommended for soft bonds such as resin and bronze.
- Medium coating: Balances adhesion and thermal resistance, ideal for metal and vitrified bonds.
- Heavy coating: Provides maximum oxidation resistance and durability in extreme temperatures, suitable for high-temperature sintering and demanding applications.
Applications
Ceramic Manufacturing
Primary application for vitrified bond diamond tools.
- Precision grinding of alumina, silicon carbide, and advanced engineering ceramics
- Ceramic component shaping, finishing, and profile grinding
- High-stability grinding where strong ceramic bond adhesion is required
Optical & Optoelectronic
Used in resin and ceramic bond tools for low-damage machining.
- Optical glass and quartz precision grinding
- Sapphire and crystalline material finishing
- Applications demanding reduced subsurface damage and thermal control
Glass & Gemstone
Conditionally used in resin bond tools for stable, low-damage processing.
- Optical and technical glass grinding and finishing
- Crystal and gemstone cutting and fine grinding
- Applications benefiting from improved heat dissipation