Precautions for Purchasing PVC Electrical Insulating Tape

PVC electrical tape is a soft polyvinyl chloride (PVC) film as a substrate, coated with rubber pressure-sensitive adhesive. They have good insulation fire resistance, voltage, cold resistance, and other characteristics, suitable for vehicle wiring, wire winding, insulation protection, etc. PVC electrical tape, also known as Mylar tape, is made of polyester film and solvent pressure-sensitive adhesive, with tensile strength, and high-temperature resistance, and is used in the manufacture of various transformers. Ordinary smooth surface or matte insulating tape with good adhesion and flexible material. The color of PVC tape is not monotonous. Available in red, blue, green, white, black, and yellow.

 

 

Three common insulating tapes

 

1. Insulation black tape

 

In the early days, the insulating black tape was used more often, which is generally called black tape. It is based on cotton fabric, with good insulation and winding properties, and the price is very cheap, but it is neither flame retardant nor waterproof, and it has been gradually phased out.

 

2. PVC electrical tape

 

PVC electrical tape is currently the most widely used. It is made of polyvinyl chloride (PVC) film as the base material and is made of pressure-sensitive adhesive evenly coated on the PVC film. The color of PVC electrical tape is not monotonous at all, there are red, blue, green, white, black, yellow, and other colors to choose from.

 

3. High-pressure rubber self-adhesive tape

 

There is also a high-pressure rubber self-adhesive tape, which is made of rubber, oil, and calcium powder. It can withstand high temperatures of up to 150 degrees. Its ductility is worse than that of PVC electrical insulating tape, but its strength is not as good as that of PVC electrical insulating tape. Use PVC electrical tape.

 

Precautions for purchasing PVC electrical insulating tape

 

1. Pay attention to the appearance of the tape:

 

It mainly depends on whether there are burrs, the section should be flat, and there should be no overflow or leakage of glue.

 

2. Differences in insulation properties:

 

Although PVC electrical tapes have insulating properties, different manufacturing processes can cause their insulating properties to vary. For example, if a lot of fillers are added to the PVC base material, the phenomenon of reverse whitening is obvious after elongated use, and its insulation performance has dropped a lot at this time. We took the bull electrical insulating tape for simple verification. After doubling the force, there was no obvious whitening. It can be seen that the material is still very solid.

 

3. Lead-free:

 

Lead-containing PVC products are a frequently mentioned problem. You can choose lead-free electrical insulating tapes such as Bull and 3M, which are environmentally friendly and lead-free and safe, and secure to use.

 

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