Interplastic Corporation has been an industry leader in thermoset resin, gel coat, colorant, and putty research, design, and development since 1959. Our chemists and engineers work closely with Interplastic customers and suppliers to develop innovative solutions for product, manufacturing, and marketplace challenges. Our goal is to help composites and cast polymer manufacturers build better, longer-lasting products. Interplastic has strategically placed itself to meet the diversified needs of its customers by expanding its manufacturing capabilities and by investing in product research. Our three full-service product development laboratories are located in Minneapolis and St. Paul, Minnesota; and Fort Wright, Kentucky. In addition, all of our manufacturing facilities and research and development laboratories are ISO 9001:2008 certified. Interplastic manufacturing facilities also have ISO 14001:2004 registered environmental management systems. Interplastic is the leading manufacturer of unsaturated polyester, vinyl ester and specialty resins, gel coats, colorants and putties under the CoREZYN®, Silmar®, and Integrity® brand names for the composites, cast polymer, and solid surface industries. All CoREZYN, Silmar and Integrity products are sold direct and through our extensive network of distributors in North America and around the world.