Bentone TPG Tetra-alkyl ammonium bentonite Elementis Rheology Modifier/ Thickener >> Organoclay >> Bentonite Coatings >> Solventborne Architectural / Decorative Automotive OEM >> Underbody Can Coating >> Interior protection coat Transportation >> Road marking Metal >> Primer Rheology Modifiers/Antisettling Agents Tetra-alkyl ammonium bentonite BENTONE® TPG is a rheological additive for low polarity solvent based traffic paints and underbody coatings Appliance and Metal Furniture Primer Tetra-alkyl ammonium bentonite. Used as a rheological additive for low polarity solvent based traffic paints and underbody coatings, and appliance and metal furniture primer.