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320# black silicon carbide powder for polishing

$1,500.00 /MT

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Black silicon carbide powder is widely used in polishing and lapping due to its high hardness (Mohs 9.1-9.3), sharp edges, and excellent thermal stability. It is particularly effective for metals, ceramics, glass, stone, and composite materials.

Key Properties for Polishing

 High Hardness – Efficient material removal
Sharp, Angular Grains – Provides a consistent cutting action
Thermal & Chemical Resistance – Suitable for wet or dry polishing
Controlled Particle Sizes – Available in fine to coarse grits (FEPA, JIS, or micron grades)

Common Polishing Applications

  1. Metal Polishing

    • Deburring and finishing of stainless steel, titanium, aluminum, and cast iron.

    • Used in vibratory tumblers, abrasive pastes, and buffing compounds.

  2. Stone & Concrete Polishing

    • Granite, marble, and engineered stone polishing.

    • Used in resin-bonded grinding wheels and polishing pads.

  3. Glass & Ceramics Finishing

    • Edge grinding and surface polishing of optical glass, LCD screens, and technical ceramics.

  4. Lapping & Precision Finishing

    • Used in lapping compounds for achieving ultra-smooth surfaces on seals, bearings, and valves.

Grit Sizes for Polishing (Common Standards)

Grit Size (FEPA) Avg. Particle Size (µm) Typical Use
F220 53 – 63 Rough polishing
F320 29 – 37 Medium polishing
F400 17 – 23 Fine finishing
F600 9 – 13 Precision polishing
F800-F1200 6 – 9 Ultra-fine finishing

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