... drilling fluids for water well, exploration and mining, etc Bentonite Powder API grade1.DescriptionBentonite swells greatly when it meets water ... water form a viscous, shear thinning material. Most often, bentonite suspensions are alsothixotropic, although rare cases of rheopectic behavior ... be used in cement, adhesives, ceramic bodies, and cat litter. Bentonite is also used as a binding agent in the ...