Lubricon HD HW (AFCO 5539) is a water-soluble chain and conveyor lubricant uniquely formulated for use in water up to 10 grains (171 ppm) hardness. It will provide excellent cleaning, desired foam level and lubricity at recommended dilutions. AFCO 5539 has been dynamically tested for extreme pressure lubricating properties utilizing the Falex EP Tester as well as practical field tests.