For using the polymer quenchant during the heat treatment of aluminum alloy, several tests of the polymer quenchant of Aquatensid BW are conducted, including the measurement of cooling rate curve, conductivity, mechanical properties and metallurgy properties, etc. The results provide a guideline to
choose polymer quenchant, and on this basis Aquatensid BW is used in the heat treatment of 6061 Aluminum Alloy parts.