Heat shrink tubing has many functions, and it can often be seen in daily life. The most commonly used scenario for individuals is to use heat shrink tubes to repair data cables. If the outer layer of the data cable is damaged, heat shrink tubes can be used to regain protection. However, it often happens that the heat shrink tubes are too small to fit in.

When choosing heat shrink tubing, everyone overlooks an important piece of information. The data cable has a plug-in head, and the size of the plug-in head is larger than the wire diameter. When purchasing heat shrink tubing, you choose it based on the wire diameter. The inner diameter of the heat shrink tubing is larger than the wire diameter, but it cannot pass through the plug-in head, so it will not fit in. This phenomenon occurs. Heat shrinkable tube manufacturer Fu Xinyi can tell you responsibly that there is no way to get it in. Unless the wires are cut and rewired, it is still difficult for non-professionals to connect the data cables, which is a bit superfluous and unnecessary.

The correct method is to choose a heat shrink tube with a larger inner diameter and a higher shrinkage rate, which can perfectly solve this problem. If it is an Apple lightning interface, you can choose 3 times φ9mm heat shrink tube. After repeated trials, it can be applied directly.

Whether it is a data cable or other wiring harness, if the heat shrink tube cannot be put in, you can use this method and choose a heat shrink tube with a larger inner diameter and a higher shrinkage rate. This is something you need to pay attention to when choosing heat shrink tubing, because the heat shrink tubing is a cylindrical sleeve that cannot be opened and can only be inserted through one end, so you must know the maximum and minimum dimensions of the cable. The maximum part size is to facilitate the insertion of the heat shrink tube, and the minimum part size is to allow the heat shrink tube to tightly wrap around the cable after shrinking. If the lock cannot be tightened after 2 times of contraction, just choose 3 times, 4 times, 6 times and then choose higher shrink ratios until it can be completely shrunk in place.