As for the question of whether a hair dryer can shrink heat shrink tubing, you only need to figure out the shrinkage temperature of the heat shrink tubing and the temperature of the hair dryer. The initial shrinkage temperature of conventional heat shrinkable tubes is generally around 70°C, and the maximum temperature of a hair dryer is generally around 80°C.

    Theoretically speaking, a general hair dryer can shrink heat-shrinkable tubes. If you just connect a wire at home and use heat-shrinkable tubes to repair the data cable, there is still no problem. A hair dryer can be used to shrink transparent heat-shrinkable tubes such as rings and glasses legs. Therefore, there is no problem in using a general hair dryer to shrink heat shrinkable tubes at home, because you don’t have to care about production efficiency, it just means that the shrinkage time is longer.

    If the heat shrinkable tube is shrunk in large quantities in the industrial field, it is unrealistic to use a hair dryer to shrink the heat shrinkable tube. First, the temperature of the hair dryer is too low, and the heat shrinkable tube may not be fully shrinkable, causing a quality accident; second, the temperature of the hair dryer is too low. Low temperature means that the heating shrinkage time will be long, which will affect production efficiency.

    It should be noted that the general hair dryer is only suitable for heating and shrinking ordinary heat shrinkable tubes, such as PVDF heat shrinkable tubes, fluororubber heat shrinkable tubes, oil-resistant heat shrinkable tubes, Teflon heat shrinkable tubes and other high-temperature resistant heat shrinkable tube series; Seven types of heat shrinkable tubes, including medium-walled heat-shrinkable tubes, thick-walled heat-shrinkable tubes and busbar heat-shrinkable tubes, cannot be shrunk using a hair dryer, mainly due to two reasons: higher shrinkage temperature and thicker wall thickness. For example, the initial shrinkage temperature of high-temperature-resistant heat shrinkable tubes is around 150°C, and a hair dryer cannot reach such high temperatures. If you are using heat shrinkable tubes in large quantities, it is still recommended to use an industrial heat gun. The temperature can be adjusted at will. Basically, all types of heat shrinkable tubes can be shrunk with a heat gun.