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### **What is Shrink Tubing?**

heat shrink tubing is a type of plastic tubing that shrinks when heated, hence the name "heat shrink." It is commonly used for electrical insulation, protection, and bundling of wires, cables, and other components. The tubing is typically made from materials like polyolefin, polyvinyl chloride (PVC), or fluoropolymers. It is available in various sizes and colours to accommodate different applications. When heat is applied to the tubing, either through a heat gun or an oven, it undergoes a shrinking process. The tubing's diameter reduces, and it conforms tightly to the shape of the object it is covering. This provides an effective barrier against moisture, dust, chemicals, and physical damage.

### **What are the benefits of heat shrink Tubing?**
- **Electrical insulation:** It creates a protective barrier around wires, preventing short circuits and electrical hazards.
- **Strain relief:** By shrinking around the wires or cables, it helps relieve stress on the connection points and prevents the wires from bending or breaking.
- **Environmental protection:** The tubing provides resistance to moisture, chemicals, abrasion, and UV radiation.
- **Organization and bundling:** It can be used to group and organize wires or cables, making installations neater and more manageable.
- **Identification and colour coding:** Heat shrink tubing is available in various colours, allowing for easy identification and colour coding of different wires or cables.

### **What are the materials and types of heat shrink tubing?**
- **Polyolefin (PO):** Polyolefin tubing is the most widely used and versatile type of heat shrink tubing.
- **Polyvinyl Chloride (PVC):** PVC heat shrink tubing is known for its flexibility, durability, and flame-retardant properties. It is commonly used in applications where resistance to oils, fuels, and chemicals.
- **Fluoropolymer (e.g., Teflon):** Fluoropolymer heat shrink tubing offers exceptional resistance to high temperatures, chemicals, and solvents.
- **Neoprene:** Neoprene heat shrink tubing provides good resistance to oils, fuels, and chemicals.
- **Dual-Wall Heat Shrink Tubing**: Dual-wall tubing consists of an inner layer of adhesive and an outer layer of heat-shrinkable material. When heated, the tubing shrinks, and the inner adhesive layer melts and creates a moisture-resistant seal.
- **Specialty Heat Shrink Tubing:** There are various specialty heat shrink tubing options available for specific applications.

For more information on heat Shrink tubing please see our [complete guide here](/web/content/discovery/ideas-and-advice/heat-shrink-guide).

**For accessories that are used with Heat Shrink Tubing please see:**

**Heat Shrink Connectors **[**https://uk.rs-online.com/web/c/connectors/wire-terminals-splices/splice-connectors/**](https://uk.rs-online.com/web/c/connectors/wire-terminals-splices/splice-connectors/)

**Heat Guns **[**https://uk.rs-online.com/web/c/power-tools-soldering-welding/power-tools/heat-guns/**](https://uk.rs-online.com/web/c/power-tools-soldering-welding/power-tools/heat-guns/)



Shop our range of Heat-Shrink & Cold-Shrink tubing. Browse our heat shrink tubing offers today, Fast Delivery

Heat Shrink Tubing | RS

Heat Shrink Tubing

Buy from our selection of Heat Shrink Tubing from RS PRO. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

RS PRO Heat Shrink Tubing | RS

Buy from our selection of Heat Shrink Tubing from TE Connectivity. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

TE Connectivity Heat Shrink Tubing | RS

Buy from our selection of Heat Shrink Tubing from Thomas & Betts. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Thomas & Betts Heat Shrink Tubing | RS

Buy Alpha Wire FIT 221 Heat Shrink Tubing from RS Components. Browse our range of FIT 221 Tubing by Alpha Wire, with free next day delivery!

Alpha Wire FIT 221 Heat Shrink Tubing | RS

If you need a dependable way to protect and seal terminations, try FIT Heat Shrink Tubing from Alpha Wire.This range of heat shrink tubing is made from premium compounds under strict manufacturing controls to ensure consistently superior physical characteristics.Alpha FIT 221 heat shrink tubing is made of irradiated polyolefin and provides a shrink ratio of 2:1. It can be used within a wide operating temperature range of -55 to +135°C, making it well suited for demanding industrial applications. Choose from different colours for easy identification like blue, red, green, black, yellow, and white.<h2>What is heat shrink tubing?</h2>Heat shrink tubing is a type of plastic layer which can be used on cabling and components for a variety of purposes such as: electrical insulation, protection again dust, chemicals, abrasions and moisture, reinforcement, identification, and consolidating multiple wires into a single unit. They are also known as heat shrink sleeves. The wrap is secured to the desired components by heating it with a heat gun or heat shrink oven. To choose the best sized tubing for your installation you will need one that is 20-30% larger than the widest part of the cabling it is being used on.<h3>What is shrink ratio?</h3>This term refers to how much the tubing will shrink following its application, compared to its original size. For example, a 2:1 means that it will reduce to half its size. Higher numbers make for a tighter fit.The FIT 221 series by Alpha Wire is designed to help you achieve rugged and reliable cabling systems, for optimal system integrity. It is ideal for general use in areas such as engineering development, research and developments, and maintenance.Here at RS we have an excellent selection of Alpha Wire FIT wire management products to choose from, so you can find the perfect heat shrink tubing for your installation.

Buy 3M Cold Shrink Tubing,Browse our latest3M Cold Shrink Tubing. Shop today, Fast Delivery.

3M Cold Shrink Tubing | Heat Shrink Tubing  | RS

3M Cold Shrink Tubing Is designed to make cable insulating, termination and abandonment as simple as possible, 3M Cold Shrink Tubes are installed easily and reliably without the use of tools. The benefits of cold shrink tubes clear a long-term environmental seal that is high performing even in extreme conditions. The easy installation reduces downtime, installation time and training requirements.

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Alpha Wire Heat Shrink Tubing  | Heat Shrink Tubing  | RS

Alpha wire is a leading supplier of heat shrink tubing and offers a wide range of different colours and materials to suit your needs including the FIT-221, Fit 221L, FIT600 and FT400 series.

3M Heat Shrink Tubing. Cabling made easy with 3M heatshrink. Free Next Day Delivery.

Heat Shrink Tubing | 3M | RS

3M heat shrink tubing are renowned in the industry for their reliability and versatility. Suitable for various cabling applications, 3M heat shrink tubing can seal cables and joints effectively and efficiently, and are essential for when speed and safety matters. With a selection of heat shrink tube lengths and gaugs to suit all price ranges, 3M are a brand you can trust.RS combines its customer first attitude with 3Ms high quality range of products to bring you the solutions you need when you need them. For tough, reliable products that stand up to the high demands of the most challenging industries, 3M stand above the crowd.What is 3M Heat Shrink Tubing?3M Heat Shrink Tubing is a flexible polymer sleeve that is used to insulate and protect electrical wire and cable connections. The tubing is made of a heat-activated material that shrinks when exposed to heat, providing a tight and secure fit around the wire or cable it is covering. Heat shrink tubing is widely used in a variety of industries, including electrical, telecommunications, and automotive, among others. It is particularly useful in applications where the wire or cable needs to be protected from the environment, or where the insulation needs to be repaired or replaced.3M Heat Shrink Tubing is available in a range of sizes and materials, including polyolefin, silicone, and fluoropolymer, among others. The material selection depends on the specific application and the type of environment the tubing will be exposed to.One of the key benefits of using 3M Heat Shrink Tubing is its versatility. It can be used for a wide range of applications, from simple insulation to more complex applications that require strain relief and environmental protection. It is also easy to install, requiring only a heat source, such as a heat gun, to activate the shrinking process.

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Black Heat Shrink Tubing | Heat Shrink Tubing| RS

Black heat shrink tubing is a type of heat shrink tubing that comes in black colour. Like other heat shrink tubing, it is made of polymer materials that shrink in size when exposed to heat. The primary purpose of black heat shrink tubing is to insulate, protect, and strain-relieve electrical connections, wires, and other components while providing the additional benefit of a black-coloured covering.The black colour of the heat shrink tubing serves several practical and aesthetic purposes, making it suitable for a wide range of applications.RS stocks a wide selection of blackheat shrink tubing by leading suppliers such as TE connectivity, HellermannTyton, Alpha wire and RS PRO.

Buy Polyolefin Heat Shrink Tubing, Browse our latest Polyolefin Heat Shrink Tubing . Shop today, Fast Delivery.

Polyolefin Heat Shrink Tubing | Heat Shrink Tubing| RS

Polyolefin heat shrink tubing is a popular type of heat shrink tubing known for its versatility, durability, and wide range of applications. It is made from polyolefin, a type of polymer derived from the polymerisation of olefins, such as ethylene and propylene. Polyolefin heat shrink tubing is widely used in various industries due to its excellent electrical and physical properties.<h2>What are the Features and Benefits of Polyolefin Heat Shrink Tubing?</h2>Key features and characteristics of polyolefin heat shrink tubing include:<ol><li>Shrink Ratio: Polyolefin heat shrink tubing typically has a shrink ratio of 2:1 or 3:1. This means that when exposed to heat, the tubing will shrink to approximately half or one-third of its original size, respectively, providing a tight and secure fit around the object it covers.</li><li>Temperature Range: It has a wide operating temperature range, making it suitable for both high-temperature and low-temperature applications. Most polyolefin heat shrink tubing can handle temperatures ranging from -55&deg;C to 135&deg;C (-67&deg;F to 275&deg;F).</li><li>Electrical Insulation: Polyolefin heat shrink tubing provides excellent electrical insulation and is often used to insulate and protect electrical connections, wires, and cables from moisture, abrasion, and other environmental factors.</li><li>Chemical Resistance: It exhibits good chemical resistance to common substances, such as oils, solvents, and acids, making it suitable for use in challenging environments.</li><li>Flame Retardant: Many types of polyolefin heat shrink tubing are flame-retardant, offering an added level of safety and protection in critical applications.</li><li>RoHS Compliance: Polyolefin heat shrink tubing is generally RoHS (Restriction of Hazardous Substances) compliant, which means it does not contain harmful substances like lead, mercury, cadmium, and other hazardous materials.</li></ol><h3>Applications</h3><ul><li>Electrical and Electronics</li><li>Cable Management</li><li>Automotive and Aerospace</li><li>Insulation and Repair</li><li>Medical Devices</li><li>Marine and Outdoor</li></ul>RS stocks a wide selection of Polyolefin Heat Shrink Tubing by leading suppliers such as TE connectivity, HellermannTyton, Alpha wire and RS PRO.

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Yellow Heat Shrink Tubing | Heat Shrink Tubing| RS

Yellow heat shrink tubing is a specific type of heat shrink tubing that is coloured yellow. Like other heat shrink tubing, it is made of polymer materials that shrink when exposed to heat, providing insulation, protection, and strain relief for various components. The yellow colour serves both practical and visual purposes in different applications.<h2>What are the key features of yellow heat shrink tubing?</h2>Key features and characteristics of yellow heat shrink tubing include:<ol><li>Colour Coding: Yellow heat shrink tubing is often used for colour-coding purposes. In electrical and electronic applications, different colours are used to identify different wires or components, making it easier for technicians to identify connections and troubleshoot.</li><li>High Visibility: The yellow colour provides high visibility, making it easier to spot and distinguish the covered components, even in complex wiring setups.</li><li>Electrical Insulation: Like other heat shrink tubing, yellow heat shrink tubing offers excellent electrical insulation, protecting wires, cables, and connectors from abrasion, moisture, and other environmental factors.</li><li>Temperature Range: It typically has a wide operating temperature range, making it suitable for various temperature environments.</li><li>Shrink Ratio: Yellow heat shrink tubing is available in different shrink ratios, such as 2:1 or 3:1, allowing users to choose the appropriate size for their specific application.</li></ol>RS stocks a wide selection of Yellow Heat Shrink Tubing by leading suppliers such as TE connectivity, HellermannTyton, Alpha wire and RS PRO.

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Green Heat Shrink Tubing | Heat Shrink Tubing| RS

Green heat shrink tubing is a type of heat shrink tubing that comes in a green colour. Like other heat shrink tubing varieties, it is made from polymer materials that shrink when exposed to heat. Green heat shrink tubing offers insulation, protection, and strain relief for various components, with the added advantage of colour coding and visual identification.Remember to choose the appropriate size and shrink ratio of green heat shrink tubing for your specific application to ensure a secure fit and effective protection. Always follow the manufacturer's guidelines and instructions for the proper application and usage of heat shrink tubing.RS stocks a wide selection of Green Heat Shrink Tubing by leading suppliers such as TE connectivity, HellermannTyton, Alpha wire and RS PRO.

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Teflon Fluoropolymer Heat Shrink Tubing | Heat Shrink Tubing| RS

Teflon Fluoropolymer heat shrink tubing, also known as PTFE (Polytetrafluoroethylene) heat shrink tubing, is a specialized type of heat shrink tubing made from Teflon, a high-performance fluoropolymer material. It possesses unique properties that make it ideal for demanding and high-temperature applications.Due to its unique properties, Teflon Fluoropolymer heat shrink tubing is commonly used in applications such as aerospace, military, automotive, electronics, and chemical industries, where extreme temperatures, chemicals, and other challenging conditions are present. It offers reliable protection and insulation for wires, cables, and components in these demanding environments. However, it's essential to choose the correct size and specifications of the Teflon heat shrink tubing to ensure proper fit and performance for the intended application.<h2>&nbsp;What are the key features of Teflon Fluoropolymer heat shrink tubing?</h2>Some key features of Teflon Fluoropolymer heat shrink tubing include:<ol><li>High-Temperature Resistance: PTFE has excellent resistance to high temperatures, making it suitable for applications where regular heat shrink tubing might degrade or melt. It can withstand temperatures up to several hundred degrees Celsius without losing its properties.</li><li>Chemical Resistance: Teflon is highly resistant to various chemicals, solvents, acids, and bases, making it an excellent choice for applications in harsh chemical environments.</li><li>Low Friction Coefficient: PTFE has an extremely low coefficient of friction, which means it has excellent non-stick properties. This characteristic is useful in applications where lubrication and smooth surfaces are necessary.</li><li>Electrical Insulation: Teflon is an exceptional electrical insulator, which makes it suitable for use in electrical and electronic applications that require high insulation properties.</li><li>Non-Flammable: PTFE is non-flammable, providing an additional level of safety in high-temperature or critical environments.</li></ol>&nbsp;

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White Heat Shrink Tubing | Heat Shrink Tubing| RS

White heat shrink tubing is a type of heat shrink tubing that shares many characteristics with other heat shrink tubing but is specifically coloured white. Like other heat shrink tubing, it is made from a thermoplastic material that contracts or shrinks in size when exposed to heat, providing insulation, protection, and identification for various applications.The colour white offers a neutral and clean appearance, making it suitable for a wide range of uses where colour-coding or visual aesthetics are not the primary concern. White heat shrink tubing is often used in applications where the focus is on functionality and simplicity rather than distinguishing between different components or wires based on colour.White heat shrink tubing is a versatile and practical option for various electrical, electronic, and cable management needs, providing reliable insulation and protection while maintaining a clean and simple appearance.

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Green/Yellow Heat Shrink Tubing| Heat Shrink Tubing| RS

Green/yellow heat shrink tubing is a dual-colour heat shrink tubing designed to provide both colour-coding and visual identification in electrical and electronic applications. It is also commonly known as "earth wire heat shrink tubing" or "green/yellow striped heat shrink tubing."The green/yellow colour combination is typically used to indicate the earth/ground wire in electrical systems. In many countries, this specific colour scheme is standardized to represent the protective ground connection. Using green/yellow heat shrink tubing on the exposed part of a wire, cable, or connector, helps quickly identify the wire's purpose as the earth/ground connection, enhancing safety during installation, maintenance, and troubleshooting.<h2>&nbsp;What are the key features and benefits of Yellow/Green Heat Shrink Tubing?</h2>The key features and applications of green/yellow heat shrink tubing include:<ol><li>Electrical Safety: The green/yellow colour combination provides a clear visual indication of the earth/ground wire, which is essential for ensuring electrical safety, especially in complex systems where multiple wires are involved.</li><li>Insulation and Protection: Like other heat shrink tubing, green/yellow heat shrink tubing provides electrical insulation and protects wires, cables, and connectors from environmental factors, moisture, abrasion, and other potential damage.</li><li>Compliance with Standards: In many countries, electrical codes and regulations require the use of specific colour-coding for wires, and the green/yellow combination for earth/ground wires is often a standard requirement.</li><li>Industrial and Electrical Applications: Green/yellow heat shrink tubing is widely used in industrial, electrical, and electronic applications where reliable grounding is crucial.</li></ol>It is essential to select the right size and shrink ratio of the green/yellow heat shrink tubing to ensure a proper fit and secure seal around the wire or cable. Proper installation using a heat gun or other controlled heat source is necessary to achieve an effective shrink and ensure a long-lasting, insulated connection.

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Assorted Heat Shrink Tubing| Heat Shrink Tubing| RS

Assorted heat shrink tubing refers to a collection or kit of heat shrink tubing pieces in various sizes and colours. These kits are designed to provide a range of heat shrink tubing options to cater to different wire diameters and applications. They are popular among DIY enthusiasts, electricians, engineers, and technicians who work with electronics, electrical systems, or cable management.The contents of an assorted heat shrink tubing kit typically include heat shrink tubes of different diameters and lengths, and they may come in various colours or even transparent options. The kit may also include heat shrink tubing with different shrink ratios to accommodate various wire sizes and connectors.<h2>What are the benefits of assorted heat shrink tubing?</h2>Benefits of using an assorted heat shrink tubing kit:<ol><li>Versatility: The kit offers a selection of heat shrink tubing sizes, allowing you to handle various wire diameters and cables with ease.</li><li>Convenience: With multiple sizes readily available in one kit, you won't have to purchase individual pieces for different projects, saving time and effort.</li><li>Cost-Effective: Buying an assortment of heat shrink tubing is often more economical than purchasing individual pieces separately.</li><li>Organization: Different colours in the kit can help with colour-coding and organization of wires, making it easier to identify and manage connections.</li><li>Emergency Repairs: Having an assortment of heat shrink tubing on hand can be helpful for quick repairs and fixes in unexpected situations.</li></ol>Assorted heat shrink tubing kits are available in various sizes and shrink ratios, so you can choose the one that best suits your needs. Whether you're working on electronics, automotive wiring, household repairs, or any other project requiring wire insulation and protection, an assorted heat shrink tubing kit can be a valuable addition to your toolkit.

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Clear Heat Shrink Tubing | Heat Shrink Tubing| RS

Clear heat shrink tubing, also known as transparent heat shrink tubing, is a type of heat shrink tubing that is see-through or translucent in appearance. It functions similarly to regular heat shrink tubing, but with the added advantage of allowing visibility of the underlying components or connections after it has been applied.Heat shrink tubing is a tube made of a polymer material that shrinks in size when heated. Its primary purpose is to insulate, protect, and strain-relieve electrical connections, wires, and other components. When exposed to heat, such as from a heat gun, the tubing shrinks and tightly conforms to the object it surrounds, providing a secure and waterproof seal.Clear heat shrink tubing is commonly used in applications where visual inspection is necessary, or when you want to maintain the visibility of labels or markings on wires or cables.What applications use clear heat shrink tubing?clear heat shrink tubing, like regular heat shrink tubing, has various applications across different industries and projects. Its transparent nature allows for visual inspection, making it particularly useful in the following applications:<ul><ul><ul><li>Electronics and Electrical Work</li><li>Automotive and Aerospace</li><li>Label Protection</li><li>Medical Devices</li><li>Marine Applications</li><li>Environmental Monitoring</li><li>Fibre Optics</li></ul></ul></ul>&nbsp;RS stocks a wide selection of clear heat shrink tubing by leading suppliers such as Thomas &amp; Betts, TE connectivity, HellermannTyton, Alpha wire and RS PRO

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HellermannTyton Heat Shrink Tubing | RS

Heat shrink tubing is a fantastic way to take your cable sleeving to the next level. When creating a tight, secure seal around wires or cables is of paramount importance you won't find a better solution for protecting, insulating, identifying and bundling.Supremely versatile, HellermannTyton heat shrink solutions can be used in a variety of locations for a myriad of reasons.<ul><li>Prevent strain around connections or bends and eliminate the risk of breakage due to wear and tear.</li><li>Create a barrier around wires, preventing electrical hazards or short circuits.</li><li>Protect cables from elements such as moisture, abrasion, UV radiation and chemicals – especially at obvious pain points.</li><li>Identify cables by creating a colour key system.</li><li>Organise bundles or cables by type, location or purpose making them neater and safer.</li></ul><h2>How to Choose Heat Shrink Tube Materials</h2>Heat shrink tubing comes in a choice of materials. The most common material for HellermannTyton tubing is Polyolefin – sometimes referred to as Cross Linked Polyolefin (POX or PO-X). This versatile material is a great all-rounder, suitable for industrial, agricultural or office-based locations.PVC tubing offers exceptional grip and is available for use on batteries, low-voltage bus bars and cable joints. Polyvinylidene Fluoride (PVDF) tubing is often used for chemical applications.Consider also whether you require adhesive inside the tubing – this not only prevents slippage during after heat application but also adds an extra layer of protection from moisture, etc.<h2>Heat Shrink Sleeving Ratios Explained</h2>Pay particular notice to the shrink ratio shown when choosing your sleeving. The higher the ratio the tighter the grip once shrunk. HellermannTyton offer a choice from 2:1 all the way up to a super strong 6:1 with their HA67 range. This heavy-duty option is perfect when covering connectors and cables that vary greatly in size. On the other end of the scale the 2:1 ratio HIS-PACK range is an excellent choice for quick, efficient coverage.<h2>Clear Heat Shrink Tubing Vs. Coloured Heat Shrink Sleeves</h2>HellermannTyton heat shrink sleeves can be supplied in a choice of colours. Black is the most popular choice as it gives a neat, streamlined look, however clear is useful where wires or cables might need to be inspected whilst wrapped – this can be particularly useful for bundles. Yellow and green tape is often used for electrical applications and brighter colours such as red, blue and yellow are great for visibility and increased safety. Think about implementing a colour coded system in your workplace for easy identification. Heat shrink tubing can then be matched to <a href="https://uk.rs-online.com/web/c/cables-wires/cable-ties-fixings/cable-ties/?applied-dimensions=4294966115">HellermannTyton Cable Ties</a> for a comprehensive coverage.<h2>What Size Heat Shrink Wrapper Should I Use?</h2>When choosing heat shrink sleeving, remember to consider the entire width of not just the cable but also any other elements that the tubing will need to pass over. Be sure to select the correct diameter for your task. A great way to make sure you have lots of options at your disposal is with a kit of sleeves in a range of colours and sizes. The <a href="https://uk.rs-online.com/web/p/heat-shrink-tubing/0151830">HellermannTyton ShrinKit 321 Universal Basic Heatshrink Tubing Kit</a> includes 177 pieces of pre-cut tubing in a range of colours. The shrink ratio of 3:1 gives superb protection wherever the sleeves are applied. Remember also that the length of the sleeve will shrink by 10-15%.Finally, if you're looking to increase the strength and protection of your heat shrunk connections, consider adding <a href="https://uk.rs-online.com/web/p/cable-sleeving-tape/8156729">HellermannTyton hot melt tape</a> at either end. Applying this before or after regular sleeving gives the best possible protection against moisture or other possible outside elements.

Alpha Wire FIT 221 Heat Shrink Tubing

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