Rheology modification，This is a chemical additive used to change the viscosity and rheological properties of the formula. Its main component is montmorillonite, which is what we often call bentonite. After modification, we use it as an organic bentonite.

It performs similarly in both water-based and oil-based systems. It is currently widely used in paints, coatings, greases, inks and oilfield drilling muds.