PI and PET are both substrates for electric heating films. PI electric heating film, also known as polyimide electric heating film, is an electric heating element formed by making special metal foil into various resistance circuits and then sealing between two layers of insulating sheets. PI electric heating film, divided into cold film and hot film, it is surface heating, with soft material, high thermal efficiency, energy saving, fast heating, small thermal inertia and other characteristics. ...
