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Free authorization to use DuPont EIS

DuPont offers you free authorization to use a series of electrical insulation systems (EIS)—which are compliant with Underwriters Laboratories (UL) and International Electrotechnical Committee (IEC) standards—that we have developed for manufacturers of transformers, motors, relays, solenoids and other electrical applications.

These pre-approved systems can save your company significant time and money by offering solutions that have recognition from UL and are ready to be used for your end-product registration testing.


DuPont has a long history of excellence and innovation as a supplier of electrical insulation materials. Since inventing nylon 66 (polyamide 66) and DuPont™ Teflon® (polytetrafluoroethylene) more than 60 years ago, DuPont has become one of the world's leading suppliers of electrical insulation materials and the global leader in UL-recognized EIS.

Offering a wide range of films, high-performance thermoplastic resins, fibers, wire enamels, varnishes, aramid papers and pressboard products, we are able to meet virtually all the electrical insulation requirements of today's transformers, motors, relays, switches, sensors and encapsulated coils and components. We continue to innovate by tailoring and improving material performance to meet emerging application requirements.

Global Networks

Together with our distributors, converters and molders, DuPont has established a network capable of supplying world-class quality products and services virtually anywhere on the globe. Our production plants are located in all regions of the world and are either certified or are in the process of being certified to comply with ISO 9001 and ISO 14001.