Tolsa group Producer of rheological additives based on high purity sepiolite and attapulgite. (Pangel)
Degussa AG Aerosil® - fumed silica, hydrophilic and hydrophobic grades. Thixotropic agent in paints and coatings.
Elementis Specialties, Inc. Producer of rheological additives: Organoclays, castor based thixotropes, wax based anti-settling agents and exterior alkali swellable thickeners. Major products: Bentone, Benaqua, Rheolate, Thixatrol.