AMCOL - granules and powder Environmental friendly - Innovative - Functionally AMCOL is the market leader for bentonite-based raw materials, colored bentonite speckles, new builder systems as cost effective alternatives to STPP and zeolites as well as surfactant granules on zeolite base. Another innovation is the optical brightener Quest P.W.A. in granular form - a unique Blueing agent.You will find detailed information about the products in our special brochure (only in German available).