Cardolite is a leading producer of high performance cashew nutshell liquid (CNSL) based friction particles for use in the automotive brake industry. CNSL friction particle is used in disc pad brakes and drum linings as a stabilizing agent. These particles (sometimes called friction dust) have a resilient nature which cushions the engaging property of a piece of lining. In addition, they decompose on the surface of a lining at various elevated temperatures which controls the wear and offers a protective device by prohibiting excessive temperature from being developed. The inclusion of friction particles also helps control brake noise.
The friction particle product line consists of brown, black, and modified products that are designed to meet a comprehensive range of performance and property needs. Brake manufacturers can choose the most appropriate friction particle from a broad range of mesh sizes and particle distribution. These particles can be used in metallic, semi-metallic, asbestos and non asbestos brake products.
The tables below are a summary of friction particles properties to aid in product selection.