Callahan Chemical carries chemicals to creators of coatings, cleaners, and cosmetics. The distribution company's chemicals are also used in inks, adhesives, personal care products, pharmaceuticals, and vitamin products. Product categories include antimicrobials, silicones, solvents, urethanes, surfactants, humectants, preservatives, and specialty resins. The company's suppliers include Dow Chemical, Eastman Chemical, Rhodia, and Stepan. Callahan transports products from four warehouses in the northeastern US and Puerto Rico; it also offers packaging and blending services.