What problems or matters should be paid attention to when using heat shrinkable tubing?

Heat-shrinkable tubes are used in a wide range and have been used in almost all walks of life, especially in the fields of motors, electrical and automotive wiring harnesses. It helps you achieve the electrical insulation, mechanical protection, environmental sealing and strain relief you need in applications such as harness terminator sealing, breakout points and connector-to-cable transitions.

Now there are many types of heat shrinkable tubes to meet the needs of different industries, such as: high temperature resistant heat shrinkable tubes, high pressure heat shrinkable tubes, double wall heat Shrink tubing replaces traditional insulation protection solutions such as strapping, molding or potting.
First, do not stretch the heat shrink over cables or tubing, as this may cause the heat shrink to tear after recovery. Since heat shrink tubing has a minimum expanded diameter when it is applied, always use the specified minimum expanded diameter. Do not assume that the product size will be exactly the same from batch to batch, but it will always meet the specified minimum unfolded diameter.
Second, don't assume that the heat shrinkable tubing will shrink to the fully shrunk size every time. Sometimes the heat shrink tubing will shrink a little more than the specified inside diameter, but it will still meet the maximum shrink size.
3. Do not cut the Heat Shrinkable Tube longer than the required installation length, because the heat shrinkable tube will become longer after heat shrinkage. The more you shrink, the longer the length will be. You can calculate the length you need according to the length change rate in the data sheet.
4. Do not apply the heat shrinkable tube to things with sharp edges, because the heat shrinkable tube is easily pierced.
5. Follow the installation guidelines, especially about the temperature. If the temperature is too low, it will cause incomplete shrinkage; if the temperature is too high, it will burn out the heat shrinkable tube.
Liu, If you use a heat gun to heat the heat Shrink Tube, you may see some wrinkles. This is caused by uneven heating, but generally does not affect the performance of the heat shrink tubing. It is recommended to use an oven for recovery, because the heating will be even; or use a hot air gun to heat the substrate and restore it on the substrate.
Once heated, the heat shrink tubing will precisely conform to the size and shape of the base of the substrate, speeding and simplifying the installation process. With high expansion, the most damaged cable jackets can be repaired without disassembling the connector.
Heat shrink tubing is available in a wide variety of materials, colors and sizes and can be produced in a variety of shapes such as rolls, 1.22m lengths and loose pieces cut to different lengths. The transparent heat-shrinkable tube allows inspection of the shelled components and provides excellent light transmission, so that the internal structure of the covered object can be seen at a glance, which is convenient for later inspection and maintenance, greatly saves operating time and improves work efficiency.
Summary Different parameters of heat shrinkable tubes have different properties, so different matters must be paid attention to in material selection, measurement and application.