Black Resinated Lignite Powder can tolerate wide range of soluble contamination. The Resinated Lignite Powder is a water soluble, thermally stable synthetic lignite derivative. The Resinated Lignite Powder is used to achieve filtration control and rheological stability over a wide range of temperature. The Black Resinated Lignite Powder is additive for all water base drilling fluids with chlorides below 60000 mg/L and hardness not exceeding, 3500mg/L.
