Heat shrink tubing and heat shrink moulded shapes for your applications!

Heat shrink tubing fitting your requirement best!

Heat Shrink tubing HA47 Tredux application below ground

You are looking for the heat shrink tubing meeting your application requirements best?

The key factors to which we owe our success are the unique and quite specific properties of our heat shrink tubing. Starting with the choice of material, for example, the different requirement demands raised by being used in the sensitive aerospace industry or  rail transportation sector are focused on  the self-extinguishing fire protection properties of heat shrink tubing. 

According to the requirements set, the shrink ratio, that is to say the precise size to which heat shrink tubing is capable of shrinking, can be just as important in this process as dispensing with halogeneous materials in the manufacturing of heat shrink tubing.

What is heat shrink tubing?

Heat shrinking means: The process of applying heat, for example using an electric or gas heat gun, to shrink expanded plastic tubing or shapes down to its original size.  A distinction is made in this respect between recovered dimension(original size) and supplied dimension (expanded size). Heat shrinking is used in various industries and applications – for instance to insulate and protect cables against heat, chemicals or water. Watch this video with our heat shrink experts Barry and Mark to see how easy heat shrink tubing is to handle.

Heat shrink moulded shapes selection


Every single piece of heat shrink tubing has to match its specific area of work to the highest degree of accuracy – from batch production, for example as the insulating handles of tools, to heat shrink tubing sleeves for maintaining underground cables which have already been laid and which would be extremely expensive to repair in terms of resources and costs without using corresponding specialised heat shrink tubing (heat shrink cable repair sleeves).

From adhesive lined heat shrink tubing to transparent heat shrink tubing  which allows the identifying elements to remain visible on cables to be insulated, HellermannTyton offers a comprehensive range of heat shrink tubing products that meets the highest international standards.

HellermannTyton provides workers and decision-makers involved in manufacturing with a solution fit to their specific needs, which is tailor-made for their specialist area or, to put it another way, every piece of HellermannTyton heat shrink tubing makes problems shrink, even before they arise.

Product highlight heat shrink tubing: Cable Repair Sleeve RMS

Cable repair sleeve RMS

RMS are heat shrinkable wrap-around sleeves used in cable repair and splicing applications. The wrap around sleeves are a fast, labour saving and permanent cable repair and sealing system. The sleeve is simply wrapped around the cable and held in place using a rail and channel closure.

The cable repair sleeve RMS is especially useful for repair of long and buried cables where it would be difficult or impossible to use a shrink tubing.

Heating by a torch will shrink the sleeve and melt the adhesive inner coating resulting in a moisture-proof, insulating and tight-fitting repair.

The sleeve provides excellent corrosion protection,abrasion and weather resistance making it also ideal for LV cable joint outer protection. The high shrink ratio limits the number of sizes to only 6. Each size covers a range of cable sizes. RMS is available in various standard lengths. Other lengths available on factory request.

Discover the wide range of heat shrink products!

Heat shrink tubing is extruded plastic tube that is expanded and will shrink back to its extruded size when heated.
Heat shrink is used to electrically insulate cables and wires offering also mechanical and chemical protection.

HellermannTyton is a global manufacturer who offers high performance fastening, connecting, routing, protecting,
and identifying solutions to diverse markets. For our customers we develop market solutions that uniquely meet industry needs -
solving an application requirement, saving installation and component costs, and improving the quality of the end product - no matter what your industry:

Heat shrink tubing Heat shrink tubing

Heat Shrink Tubing for electrical insulation and mechanical protection. Thin Wall Tubing, Medium and Thick Wall tubing,
without (single wall) or with adhesive liner (dual wall). Heat Shrink Tubing made of Polyolefin (POX), Elastomer (PES),
Fluoropolymer (FPM), Polyvinylidenefluoride(PVDF) and Polytetrafluorethylene (PTFE). Available in various shrink ratios from 2:1 up to 6:1 for different applications.

Heat shrink moulded shapes Heat shrink moulded shapes

Heat Shrink Moulded Shapes, End Caps and Breakouts, unlined and adhesive lined, 2-way up to 6-way Outlet Shapes.  
90°and 45° angle boots, Transitions, Y-outlets, VG-style shapes. End Caps and Breakouts for low voltage applications, two component epoxy adhesive and hot melt adhesive tape.

Non shrinkable tubing Non shrinkable tubing

Insulation tubing and sleeving, made from Chloroprene (CR), Polyvinylchloride (PVC), Polyolefin (PO),
Polytetrafluoroethylene (PTFE) or Silicone (SI) as well as Hellerine lubricating oil for rubber and plastic sleeves.

With the wide range of high-quality heat shrink products in different materials, colours, sizes, wall-thicknesses and shrink ratios HellermannTyton offers the right product for every application

ShrinKit 321, shrink tubing in handy boxes

ShrinKit 321, shrink tubing in 3:1 shrinkratio in a box

ShrinKit 321 is a family of five heat shrink tubing assortments in attractive and handy assembly kits. With their ideal 3:1 shrink ratio these products replace many differently sized tubing solutions by fitting almost any heat shrink requirements. Choosing the required product is simplicity itself as the tubings are clearly identified by size and length and content printed on every compartment of ht eassortment boxes.

HIS-3 shrink tubing

coloured pre-cutted heat shrink tubing HIS-3 Bag in blister bags

HIS is a range of heat shrink tubing types in handy dispenser boxes.
The range consists of HIS-3 and HIS-A (Adhesive lined tubing) with 3:1 shrink ratios. With their ideal shrink ratio of 3:1 these products replace many differently sized tubing solutions by fitting almost any heat shrink task. The handy dispenser boxes allow for proper storage and the tubing can remain dust-free even after breaking open a package.

Heat shrink moulded shapes with adhesive liner

Heat shrink moulded T-shape Helashrink 1202-1-G recovered onto a cable harness

Helashrink moulded shapes with adhesive liner allow for very precise fitting,
extremely robust connections and excellent corrosion protection at branches in string cabling.

Heat shrink tubing MA47

Medium Wall, adhesive lined heat shrink tubing MA47 with 4:1 shrink ratio

Medium wall, 4:1 shrink ratio, heat shrink tubing MA47 with thermoplastic adhesive lining provides reliable insulation and moisture protection for low voltage cable joints and terminations.

Heat shrink tubing TREDUX

Heat shrink tubing TREDUX, thin wall with 3:1 shrink ratio

Thin wall TREDUX heat shrink tubing with a shrink ratio of 3:1 ensures reliable electrical
insulation and mechanical protection of cables  in power inverters.

Heat shrink moulded shapes Helashrink Series 1100

Heat shrink moulded shape helashrink 1100 recovered onto a connector

The right-angled, moulded heat shrink shapes of the Helashrink Series 1100 provide strain relief and mechanical protection for connector-cable connections with circular connectors.

Heat shrink tubing TF24

Heat shrink tubing TF24 transparent for marking cables and wires

Transparent heat shrink tubing TF24 ensures protection against mechanical and chemical infuences and is often used in identification solutions.

Heat shrink tubing TF21

Heat shrink tubing TF21 thin-walled is quick and easy shrinking and widely used for insulating, mechanical protection, strain releief, marking and bundling.

Printable, thin wall TF21 heat shrink tubing used for clear marking of cables
for example to mark the phase of power cables

Heat shrink tubing TR27

Heat shrink tubing TR27 thin-walled, halogen free, self extinguishing

The thin-walled TR27 heat shrink tubing is halogen-free, self-extinguishing and thus extremely suitable for installation in tunnels.

Heat shrink tubing HFT-A

Heat shrink tubing HFT-A for protection of components

The HFT-A heat shrink tubing is used for electrical and mechanical protection of components and can be used for colour identification.

HEK Heat Shrink End Caps

HEK Heat Shrink End Caps with adhesive liner for insulation sealing of cable ends

HEK End Caps are used to seal cable ends during storage and transportation. The adhesive lining provides an excellent seal environmental seal.

When selecting the correct heat shrink tubing it is important to consider the following parameters:

Wall thickness of heat shrink tubing: 

The material thickness will be  indicated in mm after complete shrinkage. "Nominal" defines dimensions without any tolerances. 
Generally you can distinghuish between thin wall, medium wall and thick wall heat shrink tubing. 
Heat shrink tubings are also available with adhesive liner. They are also called dual tubing. 

Diameter of heat shrink tubing: 
For thin wall tubing with a shrink ratio of 2:1 (standard tubing) the diameter is usually in inch sizes 25.4 mm equals 1 inch. 

Shrink ratio: 
Depending on the used compound material and wall thickness heat shrink tubing can be extruded to a different degree. 
The shrink ratio indicates the rate, the product shrinks (supplied diameter in relation to recovered diameter). The shrink ratio varies from 2:1 to 6:1. The higher the shrink ratio, the more varying diameters of the object can be covered. Thus, fewer sizes of heat shrink tubings are needed. 
This helps to reduce stock and so requires less space. 

Longitudinal change after shrinkage: 
 Heat shrink tubings do not shrink only in diameter, but generally also in length. This change in length after shrinking is indicated in a percentage  

Minimum shrinkage temperature: 
Heat shrink tubings do not all shrink at the same temperature. It strongly depends on the type of compound they are made of and their wall thickness. 

Operating Temperature: 
The operating temperature varies per tubing type. This is dependent of the compound used for the tubing type 

When selecting the correct heat shrink tubing size, it is recommended to follow the 80:20 rule. 
Heat shrink tubing should shrink by at least 20% and not more than 80% of the supplied diameter to achieve the optimal result. 

In our application overview for heat shrink tubings you will find the recommended heat shrink tubing size for every cable diameter. 
The 80:20 rule has of course been taken into account. 

Heat shrink tubings are used for cable harness assembly in general. The application of heat shrink tubings covers insulation, cable identification and, besides esthetical reasons, mechanical protection as well.

Find the right heat shrink tubing even quicker: The practical heat shrink tubing selection guide.

order the heat shrink tubing selection guide

With the comprehensive range of heat shrink products it can sometimes be difficult to choose the product that best fits your needs. 
Therefore HellermannTyton has designed a very practical selection disc for our heat shrink tubing which takes you straight to the product you are looking for. Order your heat shrink tubing selection guide today and convince yourself! 

The selection disc shows the important properties of our tubing at a glance and quickly finds the right solution for your specific requirements. 

The heat shrink tubing selection disc gives you the overview you need and helps you navigate through our wide variety of products. 
The symbols indicate which heat shrink tubing has the properties you are seeking. 

The colour coding helps you focus on the relevant properties. 
The reverse side of the heat shrink tubing selection disc gives you an overview of the different heat shrink tubing sizes and guides 
you in selecting the correct heat shrink tubing size. 

Useful tools for selecting the right heat shrink tubing

Heat shrink tubing size calculator

Heat shrink tubing size calculator

shrink tubing for your special application. 
Simply enter your data and the calculator presents the fitting sizes according to the 80:20 rule. 

Hint: The heat shrink calculator also checks, whether the chosen heat shrink tubing really fits your application. Among others heat 
shrink tubing can be selected by using the product search on our website www.hellermanntyton.com/in/calculators/heatshrinkcalculator 

Wall thickness calculator

Wall thickness calculator

If a heat shrink tubing is being shrunk the diameter as well as the wall-thickness will change. This calculator indicates the theoretical wall thickness for a given diameter. 

Frequently Asked Questions

What are the best tips for using heat shrink tubings?

Note 1: For shrinking tubing it is advisable to start the shrinking process in the middle section of the tubing and then gradually proceed to one end and then from the middle again to the opposite end. Thus avoiding air becoming trapped under the tubing. 

Note 2: Heat shrink tubing will also shrink longitudinally. This has to be considered when cutting the tubing. 

Note 3: It is possible to minimise the longitudinal shrink by shrinking the ends first and then the middle section. 
However avoid air gets trapped and prevents the middle section from shrinking. 
Alternatively the tubing should be shrunk down by starting at one, the most critical, end and shrinking down slowly towards the other end. 

Note 4: If the object to be covered is metal or heat conductive care must be taken to ensure the object is pre-heated to avoid “cold spots” or “chill marks” so to ensure a tight and smooth fitting of the tubing. 

Note 5: When cutting heat shrink tubing and wrap around sleeves to the desired length special care has to be taken to ensure smoothly cut ends. Poorly cut and irregular edges can cause heat shrink tubing and sleeves to split during shrinkage. 

Note 6: When choosing the tubing size it is important to consider the 80%/20% rule. This means the tubing size should be chosen to allow minimum shrinkage of 20% and a maximum of 80%. Discover a complete application overview in our product catalogue. 

Note 7: During shrinking you should always make sure that the workplace is well ventilated.


What is adhesive lined tubing?

Adhesive-lined tubing is also known as dual-wall tubing. Because here you have a combination of a crosslinked outer jacket (Polyolefin) and an inner layer of adhesive. When heated, the inner adhesive wall melts and flows. This process creates an adhesion layer that ensures a tight fit to the wire, cable or connector. Adhesive-lined heat shrink tubing is ideal for producing strong, weather tight seals with extra mechanical strength and excellent protection against corrosion.

Watch this video to see dual-wall heat shrink tubing demonstrated by our experts Barry and Mark.


Why clear/transparent heat shrink tubing?

Many cables are colour coded or have identification marks printed on them – for example in public buildings like airports and hospitals but also in tunnels and means of transport like rail vehicles, ships and planes. Transparent heat shrink tubing is often used to insulate cable jackets whilst keeping identifying marks visible. This is known in the trade as oversleeving.

Learn more about clear/transparent heat shrink tubing in this video with our experts Barry and Mark.


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Update: 06/10/2019 © HellermannTyton 2019