F-grade DMD epoxy prepreg is made of modified polyester film polyester fiber non-woven soft composite material (F-grade DMD) impregnated with heat-resistant epoxy resin and baked.

Class F DMD epoxy prepreg has excellent mechanical and electrical properties, good heat resistance, long storage period and simple molding process. Class F DMD epoxy prepreg is mainly used for interlayer insulation and end insulation of low voltage coils of Class F dry-type transformers, and can also be used for slot insulation and turn-to-turn insulation of Class F motors. In addition, compared with the traditional vacuum pressure-impregnated low-voltage winding, the foil-type low-voltage winding can not only improve the production efficiency, but also reduce the lateral magnetic flux leakage, so that the axial electromotive force is reduced, and the short-circuit resistance is correspondingly improved. strength, reducing additional losses.