A heat-shrinkable tube: Glue and other products use, diameter, videos and photos

Heat-shrinkable Tube: specifications and characteristics of the

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Table of contents

  • 1 Benefits
  • 2 Specifications
  • 3 additional types
    • 3.1 adhesive
    • 3.2 polyvinylchloride
  • 4 Varieties shrinkable tubing wall thickness
    • 4.1 thin-walled
    • 4.2 thick-walled
  • 5 conclusion
Heat-shrinkable Tube - quick and reliable electrical insulation wires compounds

Heat-shrinkable Tube - quick and reliable electrical insulation wires compounds

What is heat shrink tubing, and it's better than electrical tape? I always use it in their work and is ready to talk about the advantages, technical specifications, variants and additional fields of application.

Benefits

Why you should try at least once a heat-shrinkable tube? If you apply it at least once, you will notice the following advantages:

  1. Ease of use with his own hands. The algorithm is as follows:
Photo Step-by-step instruction
ylovayolvrpolyvp1 Prepare two wiresTo be joined.
ylovayolvrpolyvp2 take pre-cut piece of heat shrink tubing of suitable size.
ylovayolvrpolyvp3 put on it on one of the wires.
ylovayolvrpolyvp4 twist wire strands together.
ylovayolvrpolyvp5 move previously put on one of the wires of a piece of heat shrink tubing in place stranding.
ylovayolvrpolyvp6 Heat up with assembly dryer heat-shrinkable tube and observe as its diameter begins to shrink tightly clasping the junction wires. Instead, you can use the hair dryer blow torch, lighter or even ordinary matches.
ylovayolvrpolyvp7 inspect the finished result of: twisting reliably insulated.

If the hand is not a soldering iron with all the necessary to work with him articles and conditions, it is possible to do, as shown in the above instructions, only twist. But if you want to get the highest-quality and durable connection is recommended, of course, solder the twisted strands before they are insulated.

Soldering requires special tools and takes precious time, but ensures durability and reliability create the connection electric wires

Soldering requires special tools and takes precious time, but ensures durability and reliability create the connection electric wires

  1. Low price. Here are examples of the cost of some of the popular sizes:
The tube diameter, mm The cost of one meter, rbl.
before heating after heating
4 2 6,95
6 3 7,45
8 4 10
10 5 11,4
12 6 15,8
16 8 22,1
  1. No increase in effect diameter compound. Shrink tube hardly change stranding thickness due to their thin walls in contrast to the same electrical tape, which sometimes makes it so thick that no longer connected by wires placed in his place packing;
Increasing the diameter of the compound only occurs at the expense of twisting conductors, but not due to shrinking tube, whose wall thickness is only 0.3 mm

Increasing the diameter of the compound only occurs at the expense of twisting conductors, but not due to shrinking tube, whose wall thickness is only 0.3 mm

  1. multifunctionality. The use of the material in question goes far beyond its direct purpose. Termokembriki may further fulfill the following functions:
  • mechanical protection. Additional polymer layer is able to effectively protect from impacts, scratches and cuts as shrinkage object itself and objects that may come into contact with it;
In the photo - the fuel of the car, which is threaded into a special heat-shrinkable tube, in this case playing the role of shock absorber in a collision with small debris and bottom of the machine

In the photo - the fuel of the car, which is threaded into a special heat-shrinkable tube, in this case playing the role of shock absorber in a collision with small debris and bottom of the machine

  • corrosion protection. Shrink tubing fits snugly wire or any other suitable form of metallic article and does not pass moisture. Therefore, the corrosion process can not begin.

For maximum effect it is recommended to use a glue tube for corrosion protection, that due to the presence of adhesive on the inner side of the wall allow to reach the highest index sealing.

  • Fixing of various products. Density and elasticity after heat treatment shrunk tube allows it to keep the crimped part in one position;
  • marking. Colored sleeves for easy and convenient to label different objects. In particular this applies to cables and pipes;
Shrink tube may also vary no color, and the labels contained on the surface thereof

Shrink tube may also vary no color, and the labels contained on the surface thereof

  1. Durability. All polymeric materials have a long operational life.

Specifications

We now turn to more specific data and familiarize with simple technical characteristics of heat shrinkable tubing:

Parameter Value
The limits of operating temperature -55 to +125 degrees Celsius
Start temperature shrinkage process 70 degrees Centigrade
Total shrinkage temperature 125 degrees Celsius
Range of existing diameters From 0.6 mm to 180 mm
The coefficient of shrinkage process From 2: 1 to 6: 1
longitudinal shrinkage Not more than 8%
Available colors Black, red, yellow, green, purple, gray, blue, transparent, yellow, green, white
Allowable elongation until break Not less than 460%
Volumetric electrical resistance 1015 Ohm / cm
Strength limit 14.8 MPa
The level of combustibility Suppression of the combustion process
Dielectric strength More than 20 kV / mm
Resistance to chemically aggressive media present
UV resistance present
The diameter of the heat-shrink cambric decreases after heating approximately twice

The diameter of the heat-shrink cambric decreases after heating approximately twice

additional types

In addition to classic heat-shrinkable tubing discussed above can also be found:

adhesive

The main feature of the adhesive tube - the presence of glue on the inside of its wall

The main feature of the adhesive tube - the presence of glue on the inside of its wall

These sleeve on the inner surface of the hot melt adhesive layer suffered which on heating melts and fills all pores, creating a durable and completely sealed connection. That is why most of them are used for maximum protection against corrosion of wires.

When using an adhesive glue tubes thoroughly fills all voids which may be connectable between the wires

When using an adhesive glue tubes thoroughly fills all voids which may be connectable between the wires

polyvinylchloride

PVC pipe can be sold in coils, which in their appearance more like rolls of adhesive tape

PVC pipe can be sold in coils, which in their appearance more like rolls of adhesive tape

These form thermoset end sleeves create a process of heating a rigid, high gloss, and a thin coating. Most often they can be seen as a package of batteries.

Battery polyvinyl chloride heat-shrinkable tube and looks beautiful, and has a reliable protection from dust, moisture and scratches

Battery polyvinyl chloride heat-shrinkable tube and looks beautiful, and has a reliable protection from dust, moisture and scratches

Varieties shrinkable tubing wall thickness

Another difference separating termokembriki into two camps - is the thickness of their walls. And then there are two options:

thin-walled

Thin-end sleeves are most often black or translucent, although, if necessary, to carry out the marking you can find samples of all colors

Thin-end sleeves are most often black or translucent, although, if necessary, to carry out the marking you can find samples of all colors

For these products we have the following options:

Parameter Value
The wall thickness after heat treatment No more than 1 mm
Possible shrinkage ratio From 2: 1 to 4: 1
adhesive layer Absent
The most common scope Isolation and labeling of wires
When using a thin-walled heat-shrinkable tubing is important not to overdo it with fire, as it can burn easily

When using a thin-walled heat-shrinkable tubing is important not to overdo it with fire, as it can burn easily

thick-walled

A thick-walled tubing, typically has an adhesive layer on the inner side

A thick-walled tubing, typically has an adhesive layer on the inner side

These products are inherent in some other specifications:

Parameter Value
The wall thickness after heat treatment From 1.5 to 4.5 mm
Possible shrinkage ratio From 2: 1 to 6: 1
adhesive layer It is present in the majority of cases
The most common scope Insulation of power cables, wiring harness bandaging, anti-corrosion processes of metallic pipes

conclusion

Now that you know what constitutes shrink tubing. Videos in this article provides additional information that is directly relevant to the topic described. The comments also any questions you can ask for it.

Heat-shrinkable tubing is much easier to use than electrical tape

Heat-shrinkable tubing is much easier to use than electrical tape