GC400# green silicon carbide powder is a high-performance functional filler used in automotive brake pads to improve friction stability, heat resistance, wear resistance and thermal conductivity. It helps reduce brake fading, extend brake pad service life and maintain reliable braking performance under high-speed, heavy-load and continuous braking conditions.

  Why Use GC400# Silicon Carbide in Brake Materials?

  1. Stable Friction Coefficient for Reliable Braking Force

  GC400# green silicon carbide features ultra-high Mohs hardness. As a rigid reinforcing filler added to brake friction materials, it can maintain a consistent friction coefficient under both low-speed daily braking and high-speed emergency braking conditions.

  Unlike ordinary inorganic fillers that are prone to friction fluctuation, GC400# SiC powder avoids brake slipping, soft braking and insufficient braking power, providing continuous and stable braking effect for passenger cars and commercial vehicles.

  2. Excellent High-temperature Resistance to Eliminate Thermal Fading

  Temperature of brake assemblies can rise above 350℃ during continuous braking such as long downhill driving.

  Most common friction fillers will soften, decompose or fail at high temperatures, leading to severe brake thermal fading.

  GC400# silicon carbide boasts outstanding thermal stability, with no structural deformation or performance attenuation under extreme high temperatures.

  It effectively restrains thermal fading and ensures reliable braking performance for vehicles under high-speed and heavy-load working conditions.

  3. Superior Wear Resistance to Extend Service Life of Braking System

  Wear resistance is another vital advantage of GC400# SiC powder. Adding reasonable content of GC400# silicon carbide powder can greatly improve the wear resistance of brake pads, reducing the replacement frequency of brake pads.

  Meanwhile, its matched particle size and hardness will not cause excessive scratch damage to brake discs, realizing dual protection for brake pads and brake discs, and cutting the overall maintenance cost of automotive braking systems.

  4. Efficient Thermal Conductivity and Strong Chemical Inertness

  Silicon carbide has excellent thermal conductivity, which can quickly export massive heat generated by friction during braking, reduce local high-temperature aggregation inside friction materials, and slow down thermal aging of brake pads.

  Besides, GC400# SiC powder has stable chemical properties with strong oxidation resistance and corrosion resistance.

  It can adapt to harsh driving environments including rainy and humid days, road salt spray and weak acid and alkali erosion, keeping stable braking performance all year round.

  Green SiC or Black SiC for Brake Materials?

  Both green silicon carbide and black silicon carbide powder can be used as reinforcing fillers for friction products.

  GC400# green silicon carbide with finer particle size and higher purity is more suitable for high-precision automotive brake pads with stricter performance requirements.

  By contrast, black silicon carbide is more cost-effective for general motorcycle brake parts. In addition, different particle sizes and purity grades of silicon carbide powder can be customized for high-end scenarios including high-speed rail braking systems and aviation braking components.

  Conclusion

  With high hardness, stable friction performance, high temperature resistance, good thermal conductivity and chemical stability, GC400# silicon carbide powder has become a premium reinforcing filler for modern automotive brake friction materials.

  It solves core pain points such as thermal fading, rapid wear and unstable braking force of traditional brake materials, and helps the automotive industry manufacture safer, more durable and low-maintenance braking components.

  As the demand for high-performance vehicle brakes increases, GC400# green silicon carbide powder will have broader application prospects in the global friction material industry.