HJT-31 is reacted from phenolic resin modified EDA. It can easily soluble in ketene, methyl alcohol, ethanol and dimethyl benzene and slightly soluble in water.

 HJT-31 Epoxy Resin Curing Agent is reacted from the phenolic resin modified ethylene diamine, according to customer's different requirements, we add different agent to our product, so that our products will be more suitable for domestic and abroad market. 

HJT-60 is cardanol replace or part replace phenol,via mann nice reaction, modified EDA to create epoxy curing agent.