When you’re designing products that require electrical insulation systems (EIS), DuPont can make your job easier in meeting electrical insulation standards. That’s because we offer the industry’s largest number of EIS that have been pre-approved by Underwriters Laboratories (UL) and recognized to IEC standards. These systems include a wide range of DuPont materials used in electrical insulation, including: films, varnishes, aramid papers, pressboard products, thermoplastic resins and wire enamels.