Electrical tape is made form Soft Polyvinyl-chloride (SPVC), Choroprene rubber film or Polythylene(PE), as these backing materials can resist high voltage and high temperatures. It is commonly used to connect separated electrical wires for insulating purposes. "Wonder, Rocket, Viny" are three Taiwan-registered trademarks of ACHEM. These three trademarks are known for their excellent properties in resisting high voltage, tolerating a wide temperature and flame resistance. As a result, it has won increasingly high acceptance and a wide share of the domestic market.