Understanding Diamond Lapping Film Technology

Diamond lapping film represents the pinnacle of precision abrasive technology, combining monolayer diamond particles with specialized polymer or metal bond systems on ultra-flat polyester or Mylar substrates. Unlike conventional abrasives, these films maintain consistent particle distribution down to 0.5μm tolerances, critical for optical and semiconductor applications.

Core Components

• Diamond Grit: Synthetic diamonds (3-40μm) with controlled crystal structure
• Bonding Matrix: Nickel-electroplated or resin-bonded particle retention
• Substrate: 75-125μm polyester films with <0.5% thickness variation

Performance Advantages Over Traditional Abrasives

Key Industry Applications

Fiber Optic Polishing: Our fiber optic polishing film series achieves <0.02dB insertion loss with 9μm diamond particles, meeting Telcordia GR-326 standards for connector end-face finishing.

Aerospace Components: XYT's nickel-bonded films maintain ±0.1μm flatness across turbine blade leading edges during final lapping.

Selecting the Right Grit Sequence

Proper progression through diamond particle sizes ensures optimal material removal rates while preventing subsurface damage:

1. Roughing: 30-40μm (200-400#) for rapid stock removal
2. Intermediate: 9-15μm (800-1200#) for scratch pattern refinement
3. Finishing: 3-6μm (2500-4000#) for optical-grade surfaces

XYT's Proprietary Technologies

Our ISO 9001-certified facility utilizes:

• Electrostatic deposition systems for perfect particle distribution
• In-line laser thickness monitoring (±0.2μm control)
• Class 1000 cleanroom production for contamination-free films

Why Choose XYT's Diamond Lapping Solutions?

With 14 years of specialization in precision abrasives, XYT delivers:

• 30% longer service life through advanced bonding technology
• Custom formulations for exotic materials (SiC, sapphire, CVD diamond)
• Global technical support with application engineering services

Contact our abrasives specialists today to discuss your specific surface finishing requirements and request free sample testing of our diamond lapping film products.