Both of them have insulation performance and different application occasions. [PVC electrical tape] PVC electrical tape is made of soft polyvinyl chloride (PVC) film and rubber-based pressure sensitive adhesive. It has good insulation, fire resistance, voltage resistance, cold resistance and other characteristics. It is suitable for automobile wiring, wire winding, insulation protection and so on. Polyester electrical tape, also known as Mylar tape, is made of polyester film and solvent-based pressure sensitive adhesive. It has high tensile strength and high temperature resistance. It is used in the manufacture of various transformers. [Insulating tape] Insulating tape refers to the tape used by electricians to prevent leakage of electricity and play an insulating role. Also known as insulating tape, tape, by the baseband and pressure sensitive adhesive layer. Baseband is made of cotton cloth, synthetic fiber fabric and plastic film. Adhesive layer is made of rubber and tackifier resin. It has good adhesion and insulation performance. Insulating tape has good insulation voltage resistance, flame retardant, weatherproof and other characteristics, suitable for wire connection, electrical insulation protection and so on.