8 in Silicon Dioxide Polishing Film Discs, 0.2μm, 10-Pack for Optics & Gemstones

The 8 in Silicon Dioxide Polishing Film Discs (0.2μm, 10-Pack) are precision sub-micron abrasive films designed for final ultra-high-luster polishing of optical fiber connectors, precision glass optics, semiconductors, and gemstone facets.

Key Features

• Sub-Micron SiO2 Particles (0.2μm): Ultra-fine high-purity silicon dioxide grains provide exceptionally smooth scratch-free surface finishes, achieving sub-angstrom optical smoothness.
• 8-Inch Standard Diameter: Compatible with 8" flat lap machines, precision metallographic polishers, and orbital optical finishing platens.
• Consistent Coating Thickness: Coated on heavy-duty, uniform polyester film backing (Mylar) to prevent tearing, surface waviness, or orange peel effects.
• Convenient 10-Pack: Multi-disc package ensures seamless production flow during sensitive final-stage polishing and fiber optic termination.

Recommended Applications

• Fiber optic connector end-face final polishing (UPC/APC geometries).
• Ultra-fine optical glass prisms, flat mirrors, and precision laser window fabrication.
• Sub-micron final faceting and window polishing on high-value gemstones (quartz, sapphire, spinel, and beryl).
• Metallographic and semiconductor wafer section preparation.

Operating Guidelines

• Mount onto a clean, flat backing plate (master lap) using a thin water film or appropriate adhesive backing.
• Use with clean deionized water or specialized colloidal silica polishing lubricant.
• Run at low to moderate speeds (200–500 RPM) under light, consistent hand pressure.
• Rinse thoroughly between steps to avoid cross-contamination from coarser abrasives.