A solution of polyvinyl alcohol in water, used as a base for steel quenching media. In water solution, it cools austenitized steels faster then quenching oils, hardens steels with less distortion or breakage than straight water quenches. More economical than other water-base quenchants because of the lower concentration required. Typical concentration is 5%. Information provided by Heatbath Corporation - Park Metallurgical. Heatbath/Park has been acquired by DuBois Chemicals. |