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Poly Anionic Cellulose HV&LV

Poly Anionic Cellulose HV&LV


PAC-HV is a high molecular weight purified polyanionic cellulose polymer that is an extremely effective filtration control additive, viscosity and clay encapsulator in fresh, hard and saline water.

PAC-LV is a polyanionic cellulose polymer, which is an extremely effective filtrate reducer in fresh or salty water. It also acts as a thinner in salty water in low concentrations.







white or yellowish free flowing granule/powder

Degree of Substitution (D.S)


PH (25℃,1% solution)


Loss on Drying, %


Purity, %

≥ 95.0

≥ 95.0

Apparent Viscosity, mPa.s



Fluid Loss, ml




Conforms to API 13A standard


PAC-HV is multifunction, an excellent viscosifier promoting better hole cleaning, forms a protective colloid which inhibits the hydration of water sensitive formations and promotes borehole stability through filtration control. PAC-HV will enhance the lubricating properties of the fluid and can be added to foam to improve cuttings transportation.PAC-HV can be added to enhance a Bentonite-based fluid system and is compatible with most polymers lubricants. Addition rates can be adjusted to suit specific applications.

PAC-LV can be used in any type of water based drilling fluid, including saturated salt water fluids. It will effectively reduce filtrate loss without increasing viscosity.PAC-LV is an excellent shale encapsulater and inhibitor in medium to high concentration.

Packing: 25kg or 50kg per sack sealed in compound paper bag with plastic lining or in jumbo bags.