320# black silicon carbide powder for polishing

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)