Nomex® Aramid Paper Sheets & Tubes - DuPont Nomex is a high-temperature resistant insulation product with an excellent balance of physical and electrical properties. Nomex is made entirely from synthetic aramid polymer in two forms: short fibers (floc) and microscopic fibrous binder particles (fibrids). Nomex has been widely adopted as electrical insulation for liquid and dry transformers, motors, and generators. Nomex Type 410 is a calendered insulation paper which offers high inherent dielectric strength, mechanical toughness, flexibility and resilience. Type 410 is the original form of ...