Thermtech is a heat treating company. The Company specializes in the following processes: austempering of ductile iron and steel. hardening or quenching in water, polymer, and oil of steels and irons, flame hardening of gears, sheaves, and wheels. gas nitriding, gas carburizing and carbonitriding, aluminum annealing and aging, normalizing, annealing, and stress relieving of ferrous and non-ferrous materials. ThermTech provides value added services to the Forging, Foundry, Machining, and Tool & Die markets. In 2017 it was acquired by ProAct Services.