tesa ® 2125 Polyester tape is a class B electrical insulation tape. The heat cured rubber adhesive system of the tape make it resistant to varnish/impregnation agents. It has a high break down voltage, excellent conformability and is tear/puncture resistant. Product description Technical properties Main applications Insulation of coils in motors, transformers, relays & contacts High tension cable terminals & cable joining Interlayer insulation Reinforcement of slot liners Jumper arms.