Heatbath® Corporation and its subsidiary Park Metallurgical (formerly Park Chemical) manufacture heat treating salts and quenchants and metal finishing chemical products. The company was established in 1923 by individuals with a background in chemistry and metallurgy who had developed unique heat treating salts and metal finishing products and had a deep sense of adherence to the New England tradition of quality and economy. From this humble beginning, Heatbath / Park Metallurgical has grown to become the leader in metal finishing and heat treating salts technologies. New technologies and innovative product applications are expanding opportunities for today's metal industries. Successful companies that know the importance of experienced technical advice and a reliable supply of quality products count on Heatbath Corporation. This website will introduce you to our company, our line of heat treating salts, quenchant salts, oil and polymer quenchants and metal finishing products, and the capabilities that make us unique in the industry.