Heat Shrink Tube is used to protect cables, provides abrasion resistance and environmental protection for solid conductors and strands of wire, connections, joints and terminals in electrical work. It can also be used to repair insulation on wire or to bundle them together, to protect cables or small parts of small abrasion, and making cable entry seals, offering environmental sealing protection. These heat shrink tubes are usually made of Nylon or polyophelin, which shrink radially (but not longitudently) when heated, to between half and one-sixth of the diameter.
Heat shrink tubes are available in various colors for Color - Coding cables and connections. In the beginning of the century heat shrink tubes began to be used for PC modding to tidy up computer parts and provide an appearance that was considered pleasing In response to this market opening, manufacturers have begun to produce heat shrinkable tubes with light and UVreactive varieties.
Although heat is usually used for insulation, heat shrink tubes with conductive layers are available, to be used mainly in joints that are not soldered.
Special heat shrink tubing, known as andquot solder sleeves and quot; have a solder solder tube in a shrinking heat tube, so that a heat source for electrically joins two wires with the solder melting and simultaneously isolating the junction with the tube. Soldering arms also often contain a ring of heat-activated sealants inside each end of the pipe, allowing connection to also be made waterproof.
Heat shrinks the end of the cap, closed at one end, which is used to protect the cut ends exposed to insulated cables.