Organo Clays - Rheological Additive

Organo Clays - Rheological Additive

Organoclay is an organically modified phyllosilicate (Bentonite), derived from a naturally occurring clay mineral. The main component of Organoclay is bentonite, a chemically altered volcanic ash that consists primarily of the clay mineral montmorillonite. The bentonite in its natural state can absorb up to seven times its weight in water, after treatment can absorb only 5 to 10 percent of its weight in water, but 40 to 70 percent in oil, grease, and other sparingly-soluble, hydrophobic chlorinated hydrocarbons.

Organoclay can be used to remove oil from water, as a component in paint formulations or as a viscosifier for oil-based drilling fluids. It can be used in polymer chemistry as a nucleating agent.

This organo clay has important role in imparting rheology and mechanical stability in application of Paints  & Coating, adhesive and Sealants, Ceramics, Cosmetics.


  • Riobent SD 2: Riobent SD 2 is suitable for offering high viscosity, better anti settling properties and does not require activator for loading in the system, it is suitable with most of the solvent borne system.
  • Riobent 3452: Riobent 3452 is suitable for most of the sealant and epoxy system, to prevents filler setting during storage, It helps to Controls sagging on vertical surfaces & penetration on porous. It’s application requires activator for pre gelling.

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