4MHHPA by Nan Ya Plastics is methtyl hexa hydro-phthalic anhydride (>98.5 wt%). Acts as a curing agent. It is produced by hydrogenation from MTHPA. It has low viscosity, light color and low volatility. It has longer pot life than amines. It is hydroscopic and exhibits electrical & mechanical properties. 4MHHPA is compatible with epoxy resins. Used in electric markets.