... the specification :DK Series Nanometer(Super Dispersion) SmectiteNanometer montmorillonite belongs to smectite(including calcium,sodium,sodium-calcium, ... Rheological AdditiveHFGEL Organic Bentonite Rheological Additive adopts saponite clay,and is made and refined by special processing ... thickning effects are better than the conventional organic clay.The easy dispersing types pf HFGEL series products ...