Paper made of composite polyester and DuPont’sNomex® paper is of high temperature insulation paper made of pure aramid fiber and exhibits numerous excellent properties such as high strength, low deformation, heat resistance, flame resistance, resistance to chemicals, good dielectric property and etc. It can be widely used in dry-type transformers, special transformers , microwave oven transformers , HID ballasts and other transformers as turn to turn insulation,interlayer insulation and insulation end. It can also be used in metallurgy,lifting,hauling,mining,explosion-proof,marine,wind power and other special motors and generators as slot insulation, liner insulation and turn insulation, It has temperature insulation rating of 220'C and can provide higher level of electrical equipment security.