American Colloid Company stands for service, quality and pride. These are the values that have shaped our company for over eighty years, making it the world’s largest producer of quality green sand molding materials for the metalcasting industry. With production, distribution and marketing facilities that span the globe, we have become worldwide in scope, but we have retained our small company commitment to customer service.

American Colloid Company’s Metalcasting Products Group produces blended mineral binders containing sodium and calcium bentonite and organic additives sold under the trade name Additrol^®. Castings produced from these materials serve automotive, farm implement, railroad and machine tool markets, among others.

We provide a global network of technical support for our products, which include bentonite, customized performance blends, chromite sand, cellulose, specialty carbonaceous materials, carbon sand, cupola briquettes along with metal treatment products for non-ferrous foundries. Our team of support specialists work with individual foundries to optimize process performance and casting production.

American Colloid Company is proud of its heritage, but even more proud of its role as the foremost supplier of quality green sand molding materials for the metalcasting industry. Reflecting our values, we strive to maintain this role by continuing the work that we have begun; to supply the highest quality materials, to provide unmatched service and to maintain our leadership in new product research and development.