ADDITIVE HW is an additive used to increase the hardness of water. ADDITIVE HW is a solution of calcium acetate. Adding one gallon of ADDITIVE HW per 1,000 gallons of fluid will increase the hardness by approximately 14 grains or 240 ppm.
|Flash Point, COC||None|
|Freeze-Thaw||Do Not Freeze|
|Weight, lb-gal., 60°F (15.6°C)||9.24|