What material are the friction linings on an automobile clutch made of?

　　Friction plates come in various materials; the lower‑grade ones are made by hot‑pressing graphite and resin, while the higher‑quality ones contain a more complex formulation.

　　Some friction‑material manufacturers have adopted new materials: JTC nano‑calcium carbonate (asbestos‑free) and ceramic powder to replace resins, while EKC carbon‑carbon fiber—also free of asbestos—is used in place of asbestos fibers. These products are formulated by blending inorganic whiskers, silica, oil‑resistant compounds, and high‑wear‑resistant metal powders, then molded using advanced pressing techniques. This ensures stable high‑temperature friction performance, endowing the products with superior characteristics such as zero pollution, low noise, exceptional wear resistance, excellent high‑temperature stability, and an extended service life. Their technical performance is domestically leading and meets the advanced standards of comparable international offerings, giving them strong market competitiveness and earning widespread favor from both domestic and overseas customers. The successful development of this product has filled a critical domestic gap and holds significant strategic value for guiding R&D directions in China’s friction‑materials sector and for helping companies further expand into international original‑equipment markets.