... colloid, bentonite for drilling mud can heighten viscosity, with good capacity of hydrophily, lubricating and suspension. It is widely ... nature with Bentonite for Drilling Mud. It also has a lots of advantages, such as low filtrate volume, good capacity ... of refining, it has nontoxic, tasteless, strong cohesion, adsorption capacity, deodorization ability, durable, applicable to the family pet, such ...