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.
Technologies & Solutions
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.