Founded in 1964, Colorco Inc. is one of the oldest coloring manufacturers in the United States. Located in Linden, N.J., the company specializes in formulating custom dry color as well as manufacturing color concentrates and liquid colorants. It also formulates for all thermoplastic resins, including grades of specialty engineered resins and compounds. The company caters to the manufacturers of plastic components for homes, garden wares, tools, decorative washbasins, windows, blinds, structural partitions, food/nonfood packaging, office furniture and medical devices