Important Considerations for Heat Shrink Tube

Notes on the use of heat shrink tubing
·When shrinking heat shrink tubing, it is recommended that you start the shrinking process in the middle of the heat shrink tubing and then gradually proceed to one end and then from the middle to the other end. This will help you avoid trapping air inside the heat shrink tubing.
·Heat shrink tubing also shrinks along the longitudinal direction, i.e. along the length of the heat shrink tubing. This shrinkage should be taken into account when cutting heat shrink tubing to length.
·Longitudinal shrinkage can be minimised by shrinking the ends first and then the middle section. However, if this is done, air may be trapped, which will prevent shrinkage of the middle portion of the heat shrink tubing. Alternatively, you can start shrinking the tubing at the most critical end and then slowly shrink towards the other end.
·If the object to be covered by the heat shrink tubing is metallic or thermally conductive, care must be taken to ensure that the object is preheated to avoid "cold spots" or "cold marks". This ensures a tight fit.
·When cutting heat shrink tubing and wrap-around tubing to the required lengths, special care should be taken to ensure that the ends are cut smoothly. Improper cuts and irregular edges can cause heat shrink tubing and heat shrink sleeves to split during shrinkage.
·When selecting heat shrink tubing sizes, it is important to consider the 80:20 rule. This means that the size should be selected to allow for a minimum shrinkage of 20 per cent and a maximum shrinkage of 80 per cent.
·During the shrinking process, always ensure that the workplace is well ventilated and wear personal protective equipment such as gloves and safety glasses.

How to store heat shrink tube
·First, heat shrink tube needs to be stored in a ventilated, dry, clean warehouse, need to avoid contact with light, heat and other radiation. At the same time, also need to avoid rain, heavy pressure and all kinds of external impact. For the storage of Durst heat shrinkable tube warehouse, its temperature is best not to exceed 30 ℃, humidity should not exceed 55%.
·Secondly, heat shrink tube has combustibility, so it should be avoided to be stored with flammable and explosive items. For longer storage time Durst Heat Shrinkable Tubing products, if there is a warehouse order, should give priority to the release of products stored for a long time. For the use of leftover Durst heat shrinkable tube products, need to be packed with clean materials to prevent dust and other adsorption on it.
·Third, the heat shrink tube try not to store too long, which will lead to internal viscosity deterioration, performance will deteriorate, so it is best to buy as needed, as needed to use, to ensure stable quality.