Technical CNSL

Produced as a byproduct during the processing of cashew nuts, CNSL is a viscous reddish-brown oil found in the honeycomb structure of the cashew nutshell.
Technical grade CNSL, due to the anacardic acid decarboxylation to cardanol under heating conditions, is composed of approximately:
60-65% cardanol
15-20% cardol and 2-methyl cardol
10% polymeric material
By distilling CNSL under proper temperature and vacuum conditions, high purity cardanol is obtained.
Sustainable chemistry aims to substitute completely, or at least partially, petroleum-based raw materials with natural alternatives to develop products with equivalent or enhanced performance properties.
In this regard, cashew nutshell liquid (CNSL) has proven itself to be an invaluable resource for the development of a wide variety of products including:
Friction linings
Surfactants
Synthetic rubber & wax compounds
Foundry resins
Paints and varnishes
Epoxy resins, Epoxy curing agents
Adhesives, sealants and composites
Oil-soluble resins
Laminating resins
Rubber compounding resins, and
Polyurethanes