MTHPA is used in epoxy resin curing agents, solvent-free coatings, laminate epoxy adhesives, etc. It has excellent properties such as long-term storage at room temperature, low freezing point, low volatility, and low toxicity. It is also widely used in the impregnation, casting and winding of motors, dry-type transformers, high-voltage switches, mutual inductors, line output transformers, household appliance capacitors, and integrated circuits.