Mainly used in the epoxy curing agent. MHHPA is heating-curing type of anhydride curing agent, mainly used in electrical and electronic fields, having the advantages of low melting point, low viscosity of complexes with the alicyclic epoxy resin, long life, high heat resistance, good high-temperature electric performance, etc. It can be used for impregnation of the electrical equipment coil and casting of the electrical components and seal of the semiconductors such as outdoor insulators, capacitors, LED, digital tubes.