Manufacturing process of insulation duct tape.

Manufacturing process of insulation duct tape.

News 03 Mar 2021

insulation duct tape refers to the tape used to prevent leakage and play an insulating role when used by electricians, also known as insulation duct tape or tape. The manufacturing process is based on polyvinyl chloride film as the base material, and then coated with rubber-type pressure-sensitive adhesive. The base belt is generally made of cotton cloth, synthetic fiber fabric and plastic film, etc. The adhesive layer is made of rubber plus tackifying resin and other compounding agents, which has good viscosity and excellent insulation performance. insulation duct tape has good insulation voltage resistance, flame retardant, weather resistance and other characteristics, and is suitable for wire connection and electrical insulation protection.

insulation duct tape is widely used in electrical work such as wrapping, joints, insulation and sealing of wires used below 380V. There are two production processes: rubbing glue and glue coating.

insulation duct tape

In the process of using electricity, although people have noticed that the size of the cross-sectional area of ​​the power cord material has an impact on the safe use of electricity, they often pay insufficient attention to the use of insulation duct tape for the joints. Nowadays, power lines are becoming more and more complicated, and they can be found under wooden floors, in walls, in partitions, and in damp ground or water. If the insulation duct tape is used improperly, leakage will occur, which will endanger personal safety. Therefore, we must use insulation duct tape correctly. The power cord connectors are divided into "+" word connection, "-" word connection, and "T" word connection. The joint should be tightly wound, smooth and free of burrs. Otherwise, before the thread is disconnected, you should first press it lightly with wire cutters, then wind to the pressure opening, and then swing left and right, the thread will be compliantly broken at the joint. open. If the joint is in a dry place, first wrap 2 layers of insulating black tape, then 2 layers of plastic tape, and then stretch it about 200% with insulating self-adhesive tape, wrap 2 to 3 layers, and finally wrap 2 layers of plastic tape.

Because there are many shortcomings of using plastic tape directly: plastic tape is prone to misalignment and opening after a long period of time; when the electrical load is heavy, the connector heats up, and the plastic tape is easy to melt and shrink; the power connector is squeezed in the junction box, and the connector has burrs. It is easy to puncture plastic tape and so on.

These hidden dangers will directly endanger personal safety, cause circuit short-circuit, and cause fire. The above situation will not occur with the use of insulation duct tape. It has a certain strength and flexibility, can be tightly wound around the joint for a long time, is affected by time and temperature, and is compact and shaped, will not fall off, and is flame-retardant. In addition, wrapping with insulation duct tape and then wrapping with plastic tape can prevent moisture and rust.

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