bentogeland wide solvent polarity range. Bentogel™ BG 6 is used in transparent paints as well as in printing inks. Product Type Dispersing Agents. Rheology ModifiersBentogel™ BG 4 by Yillong Chemical is a rheological additive. It is produced from Na-bentonite and Ca-bentonite by purification and modification. It has hh gel efficiency