Used for curing agent of epoxy resin, solvent-free paint, laminate, epoxy adhesive, etc. Used as curing agent for epoxy resin, it has excellent properties such as long-term storage at room temperature, low freezing point, small volatility and low toxicity. Widely used in motor, dry type transformer, high voltage switch, transformer, line output transformer, home appliance capacitor, power capacitor resistance, integrated circuit impregnation, pouring and winding.