What drives methyl tetrahydrophthalic anhydride demand in epoxy potting compounds?

What drives methyl tetrahydrophthalic anhydride demand in epoxy potting compounds?
Methyl tetrahydrophthalic anhydride (MTHPA) is a key curing agent in two-component heat-cured epoxy potting systems, prized for its low viscosity and high loading capacity that enable dual curing and diluting roles. With tertiary amine accelerators, it cures at 80-120°C and offers over four hours of pot life at 30-40°C, making it ideal for electrical insulation applications. Demand is rising sharply as motors, electronics, and appliances demand higher insulation reliability. MTHPA-based cured epoxies deliver excellent electrical and mechanical properties, positioning it as the preferred choice over amine hardeners in high-performance potting, casting, and impregnation processes across transformers, switchgear, and capacitors.