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　　Heat shrink tubing is a type of plastic shrink tubing used in electrical work to insulate wires and provide wear resistance and environmental protection for stranded and solid wires, connections, splices and terminals. Can also be used to repair wire insulation or bundle together to prevent minor fraying of wires or small parts, and to guide cables into seals providing environmental sealing protection. Heat shrink tubing is usually made of polyolefin and when heated it shrinks radially (not longitudinally) to 1/2 to 1/6 of its diameter. What are the precautions for the use of fluororubber heat shrinkable tubing ?

　　Heat shrink tubing is manufactured in a variety of varieties and chemical compositions, and the exact composition of each type depends on the intended application. From nearly microscopic thin-walled clamp sleeves to rigid thick-walled sleeves, each has precise designs and chemical additives to meet a variety of environmental requirements. The heat-shrinkable tubes were compared according to the expansion rate, shrinkage rate, and recovery rate of the heat-shrinkable tubes.

　　Viton heat shrinkable tubing is a widely used product that can be used for various purposes of wire and cable. While it is a commonly used product, there are still a few things to keep in mind when selecting and installing heat shrink tubing to achieve coverage. Choose the right size for your heat shrink tubing based on your application in the field.

　　If you want the heat shrink to fit snugly, make sure the size of the heat shrink is smaller than the diameter of the object to be insulated or coated. Try not to press the Viton heat shrink tube against the object by stretching the Viton heat shrink tube. Sometimes during the heating process, the heat shrink tubing can tear during recycling if the dimensions were not correct before heating. If cutting into pieces, don't forget to account for longitudinal changes before cutting.

　　Don't forget to account for longitudinal shrinkage (especially for smaller pieces), where the tubing shrinks or changes length in the restored state. The longer the heat shrink tubing is heated, the more longitudinal change you will see. Use the specified extension ID size to determine the correct casing size. Viton heat shrink tubing has a small shrinkage and remains consistent.

　　Not all heat shrink tubing is created equal! Heat shrink tubing does not always shrink to the same fully shrunk size when shrunk. Check the inner diameter of the heat shrink tubing before heating. Viton heat shrinkable tubing can shrink beyond the specified recycling size, but always meet the specified large size. Note if the coating has jagged or sharp edges.

　　If the pipe is not heated high enough (it may not have fully shrunk), problems may occur, or if it is heated too high, the pipe may crack or burn marks. When using a heat gun to heat the shrink tube, ensure that the shrink tube is heated evenly. If the fluoroelastomer heat shrink tubing is heated unevenly, wrinkles may be seen, which can be called cold marks.