... ,HV,RV Poly anionic cellulose Applications: PAC-HV is for water-based drilling fluids, which can effectively reduces the filtration rate ... fluids, which can effectively reduces the filtration rate of many water-based drilling fluids, without causing significant increases in viscosity or ... - 1252.5g PAC in 350 ml Saturated Salt Water120 - 190The PAC-HV has high water-loss control ability , is a kind of ...