Anquamine® 661 curing agent is a NPE-free (4-Nonylphenol, branched, ethoxylated) alternative to well established Epilink® 661 curing agent, a leading waterborne polyamine adduct epoxy curing agent used for a wide range of coatings applications. The product has low viscosity, offers high-solids content and provides broad formulating potential. Anquamine® 661 curing agent has been developed primarily for use with liquid epoxy resin, offering the capability to formulate systems with zero VOC and without resin emulsifiers.