![]() ![]() This is usually either 2:1 or 3:1, with higher numbers indicating a greater ratio and therefore a tighter fit. Watch out for the ‘ shrink ratio’ – the relationship between the original size of the heat shrink tube and its shrunken form following application. Some also come with an adhesive liner to help the tubing stay in place once applied. Given the range of possible uses, heat shrink tubing is available in a variety of materials, sizes and colours. The name refers to the fact that the tubing is designed to shrink into place and become rigid when heat is applied, providing a durable, protective coating. They are also known as heat shrink sleeves, in particular when used with cables. Identification – the wide range of available colours allow for easy coding Reinforcement – relieving the strain applied by cables held at tensionīundling multiple wires into a single unit Protection – from dust, chemicals, moisture or abrasion Heat shrink tubing is a versatile plastic layer which can be applied to cabling and components for several purposes by electricians, engineers and similar professionals, including:Įlectrical insulation - for example, to repair a damaged or exposed length of wire ![]()
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