Heat-shrinkable tubing is an insulating element used for cables. They are also used as markers due to the wide range of colors. They provide the cables with an additional protective layer in order to minimize the risk of undesirable effects on adverse external factors. When exposed to high temperatures, heat shrink tubing shrinks and thus adapts perfectly to the shape of the cable. The shape memory makes it possible for the tubes to shrink in any way. We can distinguish two dimensions of the tubing - the original size of the tubing and the extended size, i.e. the delivered dimensions. Heat shrink tubes come in many sizes and colors. They have a wide range of applications and are widely used in various industries as insulation, protection and sealing of cables. They are suitable for difficult environments, where there is a risk of contact with chemicals and water, and there is a clear and intense influence of atmospheric factors on electrical installations.
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Shrink tubes
Products: 18
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Heat shrink solder connectors - set of 50pcs - justPi
The heat shrink solder connector kit from justPi allows you to connect wires by shrinking under the influence of heat. The set contains 50 pieces of connectors with...
Index: JUS-23833
Index: JUS-23833
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Set of heat shrink tubes 100pcs - black
Set of black heat shrink tubes with length 100 mm and diameter from 1.5 mm to 13 mm. The whole set come in transparent packaging.
Index: NSZ-05374
Index: NSZ-05374
Heat shrink tube 2,4/1,2 black - 10pcs
Heat shrinkable tubes with diameter of 2,4 mm. The product is used to protect cables with removed insulation or to sheath a broken optical fibre. After heating the tube shrinks...
Index: NSZ-00914
Index: NSZ-00914
Heat shrink tube 1.6/0.8 black - 10pcs
Diameter before heat shrink: 1.6 mm, diameter after heat shrink: 0.8 mm. Price for 10 x 1 meter.
Index: NSZ-00089
Index: NSZ-00089
Heat shrink tube 3.2/1.6 black - 10pcs
Diameter before heat shrink: 3.2 mm, diameter after heat shrink: 1.6 mm. Price for 10 x 1 meter.
Index: NSZ-00088
Index: NSZ-00088
Heat shrink tube 10.0/5.0 red - 10pcs
Diameter before heat shrink: 10 mm, diameter after heat shrink: 5 mm. Price for 10 x 1 meter.
Index: NSZ-04256
Index: NSZ-04256
Quick connector with solder + heat shrink foil 3mm - 5pcs.
The 40 mm long, 3 mm inside diameter, heat shrinkable quick connector has a tin ring built into the tube. It is designed to connect wires with cross-section from 0,5 to 0,1...
Index: DNG-19607
Index: DNG-19607
Heat shrink tube 1.6/0.8 red - 10pcs
The diameter before heat shrink: 1.6 mm diameter after heat shrink: 0.8 mm. Price for 10 x 1 meter.
Index: NSZ-00085
Index: NSZ-00085
Quick connector with solder + heat shrink foil 26-24AWG 0,25-0,34mm2 - 5pcs.
Heat shrinkable quick connector with fused tin. It is 26mm long with an inner diameter of 2mm, and has a tin ring built into the tube. It is designed to connect wires with...
Index: DNG-19606
Index: DNG-19606
Quick connector with solder + heat shrink foil 16-14AWG 1,5-2,5mm2 - 5pcs.
The heat shrinkable quick connector is 40 mm long with an inner diameter of 4.5 mm, and has a tin ring built into the tube. It is designed to connect wires with...
Index: DNG-19608
Index: DNG-19608
Quick connector with solder + heat shrink foil 12-10AWG 4-6mm2 - 5pcs.
The 40 mm long, 8 mm inside diameter, heat shrinkable quick connector has a tin ring built into the tube. It is designed to connect wires with cross-section from 4 to 6 mm2....
Index: DNG-19609
Index: DNG-19609
Set of quick-connectors with tin + heat-shrink tubing
A set of 50 quick dis connects with different sizes of tin and 50 heat shrink tubes in black. Quick connectors allow to easily and quickly connect two wires together or...
Index: LEC-18352
Index: LEC-18352
Set of heat-shrink tubes 170pcs - length 100mm - 6 colors
A set of colourful 100 mm long heat shrink tubes with diameters from 1.6 mm to 9.5 mm. The set includes 170 tubes in 6 colours: red, blue, yellow, white, transparent and...
Index: LEC-18165
Index: LEC-18165
Heat shrink tube 12.0/6.0 black - 10pcs
Diameter before heat shrink: 12 mm, diameter after heat shrink: 6 mm. Price for 10 x 1 meter.
Index: NSZ-04257
Index: NSZ-04257
Set of heat shrink tubes 100pcs - multicolor
A set of colourful heat shrinkable tubes with a length of 100 mm and a diameter from 1,5 mm to 13 mm. The whole is in a transparent box.
Index: NSZ-05375
Index: NSZ-05375
Heat shrink tube 2.4 / 1.2 red - 10pcs
Diameter before heat shrink: 2.4 mm, diameter after heat shrink: 1.2 mm. Price for 10 x 1 meter.
Index: NSZ-00084
Index: NSZ-00084
Heat shrink tube 3.2/1.6 red - 10pcs
Diameter before heat shrink: 3.2 mm, diameter after heat shrink: 1.6 mm. Price for 10 x 1 meter.
Index: NSZ-00086
Index: NSZ-00086
Set of heat shrink tubes 100pcs - lenght 100mm - black
Set of black heat shrink tubing 100 mm long and 1.6 mm to 9.5 mm in diameter. Tubes type CB - HFT are flexible and resistant to ignition up to 125°C. The product is...
Index: LEC-18164
Index: LEC-18164
See also
The use of heat shrink tubes
Heat shrink bands are used to insulate electrical wires and connections between wires, strengthen insulation, mark cables (red, black, blue or yellow-green tubes are available) and create wire harnesses. They can also be used to connect, protect against corrosion or mark components that do not come into contact with electricity - for example wires, shafts, tubes, rods, handles or tool shafts.
Heat shrink tube - What to pay attention to when shopping?
Heat shrink tubes should primarily be matched to the diameter of the cable. Of course, the shrinkage of the band must be taken into account: it is usually 2:1, which means that the heat shrink tube will double in diameter when heated (but even variants with a shrinkage of 6:1 are available on the market). T-shirts must be resistant to extreme temperatures - at least between -30°C and +120°C (the minimum welding temperature for most products of this type), and preferably more. Thanks to this, products of this type will not be damaged during welding on the cable and during subsequent work. Operating temperature is particularly important during changing conditions.
What else should heat shrink tubes stand out for?
Heat shrink tubes must also be durable - they should not be damaged by bending and stretching, of course within the range specified by the manufacturer. It is also worth paying attention to the value of resistance to electrical breakdown (given in kilovolts per millimeter, it should be at least 15 kV/mm). If you want to use tubes for marking cables, remember to choose the appropriate color. Also remember to choose heat shrink tubing that does not corrode wires (especially copper) and does not contain toxic substances such as lead or mercury. Technical data regarding heat shrink tubes and method of use can be found on the leaflet or directly on the packaging. We also offer a wide selection of cable ties necessary for various types of assembly work.
Working with heat shrink tubing
It is very important not to exceed the operating temperature indicated by the manufacturer - both when welding the tube onto the cable and during subsequent operation. Otherwise, the quick heat shrink connector may be damaged and, if the permissible limit is significantly exceeded, the cable underneath may also be destroyed. However, storing the ties at too low a temperature (especially after installation on the cable) may cause micro-cracks to form and thus weaken the durability of the cover. This applies especially to lower quality products - for this reason, it is worth choosing heat shrink sleeves (heat shrink hoses) from a proven source, which have better technical and operational parameters. Do not stretch the tubes beyond the values specified by the manufacturer, as this may result in a decrease in the strength of the material and loss of desired properties (for example, resistance to electrical breakdown). The heat shrink band will always be properly described by the manufacturer.
Heat shrink tubes - FAQ
Heat shrink tubing will be useful wherever you need to protect cable connections against water and dust, insulate cables and wires against extreme heat,
marking wires for easy identification and handy connecting multiple wires together.
The best heat shrink tubes are universal, easy to use and widely used in maintenance and repair. Heat shrink tubing can be used for preventative maintenance to avoid problems, and is also an excellent tool for making minor repairs to cables and connectors.
A good choice is the ZD-508 hot air heat gun . It will be useful wherever it is necessary to repair electrical installations by crimping heat shrink tubing, but also for deforming and welding PVC pipes and simple works such as removing stubborn stickers and veneers.
To "attach" the heat shrink tubing to a wire or other element, we must first heat it. Heat shrink is not universal, its size must be adapted to the insulated element. Unlike insulating tape, heat shrink tubing becomes stiff after welding.
It depends on the material of the heat shrink tube. The recommended shrink temperature for commonly used polyolefin materials is around 90°C, although other materials, especially Teflon, can reach high shrink temperatures, up to 250°C.