Learn Peculiarity of Heat Shrink Tubing

Heat Shrink & Accessories

Heat Shrink plastic tubing is expanded, extruded plastic sleeving that is designed to contract when heated. It is commonly used to provide sealing, termination, identification, insulation, and strain relief for cables. It has many uses in electrical, electronic, telecommunications, cable management, and virtually all other industries, and there are many variations to meet different needs: economical options for light, unexposed use, general purpose and high temperature versions for automotive, aerospace and military applications, and adhesive lined heat tubing for tight seals that keep out dust and moisture.

The most common method for contracting heat shrink is the heat gun. Heat guns range from moderate heat, fixed temperature versions for general use to variable temperature models with digital readouts. The heat shrink oven is a costlier and less portable option, but is more energy efficient.

In addition to heat shrink tubing and heat gun/hot air tools, this section also features heat shrink connectors you need to take your heat shrink project from start to finish, including heat shrink labels and high temperature specialized heat tubing.

What makes heat shrink tubing shrinkable?

You've probably noticed that most plastics you come in contact with won't just shrink down if they're heated – so what makes heat shrink tubing different? The answer is cross-linking, the process of exposing a polymer to radiation in order to create covalent bonds between that polymer's atoms. Following World War II, it was discovered that radiation was capable of altering the molecular structure of certain plastics so that they wouldn't melt or develop a flowing consistency, no matter what temperatures they were exposed to. Covalent bonds also give polymers plastic memory, which means that once a polymer has been cross-linked and stretched into an expanded shape, it will automatically shrink back to its original dimensions when a certain amount of heat is applied.

What is heat shrink tubing used for?

Likely to be found just about anywhere there are cables and wires, heat shrink is extremely useful, both for protection and cosmetic enhancement. It can be used to:

• Seal water and dust out of cable splices

• Insulate cables and wires against extreme heat in aircraft, boats, and military vehicles

• Provide a barrier between cables and corrosive chemicals

• Color code cables for easy identification

• Harness multiple wires together

• Make long-lasting labels for network patch cords

• Neatly terminate the ends of braided sleeving

• Improve the look of cables in computer case mods or custom cars and motorcycles

(Cited from Google)

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