... fluids for water well, exploration and mining, etc Bentonite Powder API grade1.DescriptionBentonite swells greatly when it meets ... form a viscous, shear thinning material. Most often, bentonite suspensions are alsothixotropic, although rare cases of rheopectic behavior ... Modern chemical processes to modify the ionic surface of bentonite greatly intensify this stickiness, resulting in remarkably dough- ...