It is a kind of banded-shaped insulation material woven by polyester fiber. It has heat resistance and insulation property. It is used for coil binding and fastening on transformers, reactors, electric motors and other products, and has high heat shrinkage rate, high hot tensile strength, no loose or dropping, and no pollution to the oil. Structure: plain weave According to different shrinkage rates, it is divided into: electrical polyester high shrinkage tape(shrinkage rate 40% ~ 45%) / electrical polyester low shrinkage tape(shrinkage rate 18% ~ 23%).