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American Colloid is the world's largest producer and supplier of quality green sand molding materials. What began in 1927 as a small venture in the hills of South Dakota has grown into a truly international organization with production, processing, distribution, and marketing facilities spanning the globe. In North America alone, American Colloid operates ten custom-blending facilities. A fleet of specialized railcars and a trucking subsidiary owned by American Colloid's parent company, AMCOL International Corporation, help ensure just-intime delivery of American Colloid's variety of essential products to foundries across the continent.
During the more than 75 years that American Colloid has developed products for the metalcasting industry, we have dominated in the development of new bentonite uses. Our applications research has led to new, higher-performance clays and more efficient carbons, cellulose products, and compounds-all produced individually or blended precisely...