Phenalkamine Hardeners are unique CNSL based curing agents with inherent property to cure epoxy resins at low temperatures down to 0 deg C under high humidity with surface tolerance and adequate flexibility. Phenalkamine is used in the formulation of epoxy resin systems. Phenalkamine is known for its high performance, durability, and chemical resistance, and is commonly used in a variety of applications, such as marine coatings, tank linings, and industrial flooring. Phenalkamine epoxy hardener is able to cure at low temperatures and in the presence of moisture, making it suitable for use in harsh environmental conditions. It is also able to provide excellent adhesion to a variety of substrates, including steel, concrete, and other metals. In forced cure industrial coating applications, phenalkamines can help save energy by lowering oven cure temperatures, or improving process efficiency via increased production line speeds. Finally, fast cure can also help protect coating manufacturers from coating failures. Phenalkamine curing agents are a class of Mannich bases obtained by reacting cardanol- an extract of cashew nut shell liquid, an aldehyde compound, such as formaldehyde, and an amine.