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With the popularity and application of heat shrinkable tubes in modern lift, more and more people are paying attention to heat shrink tubes, and at the same time they are very interested in its characteristics. Despite this, many people still don’t know how to choose and what factors need to be considered when choosing heat shrinkable tubes. Let’s take a look at hoe to choose buy them.

1. Consider the length

If you want to choose the right heat shrink tubing, its length must be taken into consideration. The appropriate length requires correct measurement methods. Choose a verier caliper or ruler to measure the diameter of the smallest and largest parts and mark them. At the same time, it should be considered that the selection of heat shrinkable tube is 20%-30% larger than the maximum measured data, and a certain space should be left to allow the heat shrinkable tube to shrink. According to the data, if the space left is too small, the heat shrinkable tube cannot play its due role and cannot perform insulation protection work. If the space left is too large, it cannot be tightly integrated with the wrapped items, and the insulation protection effect will not be satisfactory. Only by leaving an appropriate position and just right can the insulation protection effect be achieved.

2. Consider the temperature range

The heat shrinkable tube itself has the characteristic of "shrinking" when it encounters "heat", so when selecting, you must also consider the temperature change range, which is a relatively important indicator. The size of the wrapped items varies greatly, and the data obtained by measuring the items is only a relative value, and temperature changes must be fully taken into account. Heat shrinkable tubes require external heating when shrinking. The shrinkage begins when the temperature reaches 70°C, and reaches the full temperature for ease of use at 120°C.

3. The heat resistance of the wrapped items

Heat shrinkable tubes need to be heated to achieve the effect of insulation protection. When selecting heat shrinkable tubes, the heat resistance of the wrapped items must be fully considered. The wrapped items are heat-resistant and can withstand high temperatures. Only when the heat shrinkable tube is heated can it play its due role. Withstand low temperatures, the consequences are unimaginable. 

There are many manufacturers that produce heat shrinkable tubes . When purchasing, you can consult carefully and make a reasonable choice according to your needs. No matter which type you buy, its basic nature will not change. Keep it in mind and deeply grasp this point, and it will be easy to make a purchase choice.

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