Founded in 1927, Alco Chemical is a part of National Starch and Chemical Company. It manufactures a variety of specialty chemicals, polymers and adhesives. Alco Chemical provides a range of chemical products that include various pigments, aqueous and emulsion polymers, carbon disulfide materials and sulfonated products. Its brands include ALCOGUARD, ALCOGUM, ALCOQUEST, NARLEX, NSIGHT and VERSA-TL. The company s additional products include rheology modifiers, dithiocarbamates and specialty products. The company also offers contract manufacturing services for spray drying and custom polymerization. It serves pulp and paper, water treatment, textile and detergent industries. The company has one of its offices located in Chattanooga, Tenn.