Cardolite NX-4956 Cashew nutshell based Cardolite Phenol Formaldehyde (PF) Coatings >> Solvent-Free/ High-Solids Cardolite® NX-4956 is a low viscosity reactive modifier for epoxy resins. It was designed to improve cure response and reduce film defects at low temperatures. Increased early water resistance is also seen with the addition of Cardolite® NX-4956. With a viscosity of 65 cps it is an excellent tool for formulators looking to develop sprayable high solids / solvent free coatings. Increase flexibility while maintaining performance Low volatility Excellent water resistance Increased thermal shock resistance Low viscosity Good electrical properties Cashew nutshell liquid. Used as a low viscosity reactive modifier for epoxy resins in sprayable high solids/solvent free coatings. Improves cure response. Reduces film defects at low temperatures. Offers increased early water resistance. Increases flexibility while maintaining performance. Offers low volatility, very good water resistance, increased thermal shock resistance, low viscosity and good electrical properties.