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? Organization and bundling:It can be used to group and organize wires or cables, making installations neater and more manageable. 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. 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. Identification and colour coding:Heat shrink tubing is available in various colours, allowing for easy identification and colour coding of different wires or cables.

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 In our application overview for heat shrink tubings you will find the recommended heat shrink tubing size for every cable diameter. Specialty Heat Shrink Tubing: There are various specialty heat shrink tubing options available for specific applications.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.

Heat shrink tubingwith a shrink ratio of 2:1 offers: HFT-A, TL27, TF21, TF24, VITON-E, TK20, TK29, TFE-2, TR27, TCN20 and SE28. Areas where heat shrink tubing is used vary greatly. This is why HellermannTyton focuses on matching all of its heat shrink tubing optimally in the jobs for which it will be used in developing, manufacturing and distributing its heat shrink tubing and heat shrink moulded shapes. 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.

Discover the wide range of heat shrink products.

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 orrail transportation sector are focused on the self-extinguishing fire protection properties of heat shrink tubing. RMSare 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. Note 2:Heat shrink tubing will also shrink longitudinally. This has to be considered when cutting the tubing. Alternatively the tubing should be shrunk down by starting at one, the most critical, end and shrinking down slowly towards the other end. 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.

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. 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. The 80-20 rule means that a heat shrink tube should shrink by a maximum of 80% and a minimum of 20%. 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.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. 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.