PAC HV (High Viscosity PAC, API 13A PAC HV) is the certified workhorse — simultaneous viscosity building and fluid loss control in fresh, sea and salt water muds. Tested against API Specification 13A, it is the default PAC Regular Viscosity on rigs worldwide, delivering dependable rheology and a tough polymer filter cake in one product, making it an ideal Salt Mud Viscosifier.
