Performance Materials
American Colloid Company (ACC) is the world’s largest producer and supplier of green sand bond solutions for ferrous castings.
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A Global Leader in the Foundry Industry
We are a global leader in the foundry market, driven by our penetration through substitution strategy, which enables foundries to reduce costs and improve quality.
Our Brands
American Colloid Company
We are the world’s largest producer and supplier of green sand bond solutions for ferrous castings.
Volclay
Volclay® Western (Sodium) Bentonite (DC-2) is the world standard for high-quality, natural sodium bentonite. Volclay is used in all green sand molding applications, ranging from the production of iron and steel castings to the production of non-ferrous castings.
Additrol
Additrol® our signature solution, is a single-package, custom additive blend of western and/or southern bentonites and organic additives, such as carbonaceous products, cereals, iron oxides and starches.
Hevi-Sand
Hevi-Sand is the only chromite brand that offers your business full life-cycle support, starting with our mine and ending in your mold.
Minteq
Minteq, the premier supplier of engineered refractory lining systems, manufactures monolithic refractories for the iron, steel, non-ferrous metals, minerals processing and glass markets. Combined with our application systems and measurement innovations, Minteq products and systems help manufacturers increase productivity and lower overall costs.