Cashew Friction Dust Manufacturers

Cashew friction dust is used as a stabilizing agent in drum linings and disc pad brakes. This friction dust is resilient in nature and cushions a piece of lining. Usually, phenol formaldehyde resin is needed for its manufacturing. It is further polymerized with any of the donor aldehydes and passed through different mesh sizes in powder form. 

The process of manufacturing cashew friction dust comprises preparation of slurry that includes phosphorylated cashew nutshell, a cross-linking agent, and liquid prepolymer. All these ingredients are mixed in an organic solvent and stirred for up to 20 to 30 minutes. 

These are further pulverized, sieved, thermo-hardened to obtain the friction dust at a temperature ranging between 80 and 13°celsius until the desired form of friction dust is collected. 

Mostly, the residual route is preferred by many cashew friction dust manufacturers, as it is quite cost-effective. The preparation, specifications, and properties of cashew friction dust are actually the trade secrets. That’s why these are rarely published. 

-> Friction dust is obtained in the form of a granular, black or brown colored polymerized resin. Depending on its function, cashew friction dust is classified into four categories: Binder Materials, Friction Modifiers, Fillers and Reinforcements, and Abrasives.

-> Friction Modifiers contain cashew resin, modifiers, and additives used for meeting specific requirements of the formulations needed for brake lining. 

-> Modified friction dust is used in wet mixing as one of its raw materials. It is suitable for both light and heavy commercial vehicles that run on plain roads.

-> Improved impact properties by dissipating heat are manufactured faster compared to other phenol-formaldehyde (PF) resins. 

-> Paraformaldehyde friction dust is used for drying various mixes of friction. This friction modifier offers stability and thermal hardness to clutch fading, brake lining, and railway block. 

-> At elevated temperature, decomposition of friction dust takes place on the surface lining while providing a protective layer to the device. 

-> Cashew friction dust improves skid resistance, as well as lowers the brake noise. It also has amazing water repellency and hence is suitable for use in wet conditions.

-> In hot weather, friction dust can be prepared using modified CNSL Resin or borated CNSL resin. Cashew (borated) friction dust can be used in the production of air brake pads.

Cashew friction dust is an amazing manufacturing product that’s needed to reduce fade value, as well as lower the noise level of brake lining. It is prepared by a simple route but it might catch fire during shipping; therefore, its export market has been eroded to a great extent. Now, it is being developed with advanced processes to improve its resistance to flammability and to provide thermal stability. This improved version will be highly beneficial for manufacturers and suppliers exporting this product to various places across the globe.

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