cnsl, cnsl resin, sterin based and rosin based

Product Description

The cashew nut shell contains a viscous and dark liquid, known as cashew nut shell liquid (CNSL), which is extremely caustic. It is contained in the thin honeycomb structure between the soft outer skin of the nut and the harder inner shell. The CSNL content of the raw nut varies between *0 and *5 percent. Cashew nut shell liquid (CNSL) is an important and versatile industrial raw material. There are more than **0 patents for its industrial application, in particular, its use as raw material for phenolic resins and friction powder for the automotive industry (brake linings and clutch disks). In drum-brake lining compounds, cashew resins are used as fillers, and may also be used as binders. In disc pads, the role of cashew resin is restricted to the use of friction dust as a filler. The advantage of the cashew resins compared with synthetic phenolic resins is that they are more economical and produce a softer material, which gives a quieter braking action (CTCS, ***3).