Get To Know About Heat Shrink Tubing

Heat Shrink tubing finds great usage in many major industries

, such as automotive, aviation, shipbuilding and more. It is also used in a range of electronic equipment, appliances and audio and video devices.

Heat shrink tubing is a type of tubing that shrinks to fit any object that it is applied to, once heat is applied. It can be used in a variety of ways and is especially useful for maintenance and repair work. This simple material can be found in a lot of everyday electronic devices, such as telephones, MP3 players and so on.

Heat shrink tubing is primarily designed for the insulation of wires from extreme temperature. It can also be used for the sealing and protection of wires that are in cable joints. It helps to protect these wires from water as well as dirt. The tubing is also useful for holding bundles of wiring together to create a tidy environment in electronic devices.

Thermoplastic is the basic material that is used for making heat shrink tubing. The most commonly used thermoplastic materials are polyolefin, neoprene, fluoropolymer, silicone elastomer, polyvinyl chloride and many more. Several other materials are also added to the thermoplastic to provide other required capabilities to heat shrink tubing.

This type of tube is able to reduce in size because of the manufacturing process that it is taken through. It is expanded during production and this expanded shape is retained until it experiences the required temperature change. The tube reverts to its original diameter the moment the required temperature change is attained.

Monomers play a very important role in this phenomenon. If the thermoplastic material has many monomers, they tend to polymerise on the application of heat. Monomers start bonding together which increases the density of heat shrink tubing and it takes up less space.

When you want to buy shrinkable tubing, there are a few considerations that should be made. Size is a major requirement but you also have to consider the environment, temperature and voltage ratings. Make sure that you choose the right size that can easily fit over the type of surface that you are working on.

Tubes are usually made in a series and each one in the series may revert to a different diameter after temperature change. This is why you have to find out the final diameter before you make your purchase. The right diameter will make it possible to have the correct fit that will not tear or break.

The purpose of using heat shrink tubing will be defeated if there are breaks, tears or gaps. You have to choose carefully, especially when the tubing is needed for weatherproofing or insulation. The final size is usually indicated by a ratio. For instance, a ratio of 2:1 simply means that the shrinkable tube will reduce to half its original diameter.

by: Gill Bowles

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