First, let’s explain what high-temperature-resistant heat-shrinkable tubing is. Normally, when the rated operating temperature is ≥150°C, we call it high-temperature-resistant heat-shrinkable tubing, which means it can continue to protect wire harnesses or components in a high-temperature environment of 150°C for a long time. Device, heat shrink tubing does not soften and decompose.

    Commonly used high temperature resistant heat shrinkable tubes are divided into pvdf fluoroplastic heat shrinkable tubes, DR elastomer diesel resistant heat shrinkable tubes, silicone heat shrinkable tubes, fluororubber heat shrinkable tubes, and Teflon heat shrinkable tubes according to the rated working temperature from low to high. . The materials of various high-temperature-resistant heat shrinkable tubes are easy to understand from their names. They are fluoroplastics, elastomer rubber, silicone rubber, fluorinated rubber and Teflon. Next, we will analyze in detail the working temperature and characteristics of high temperature resistant heat shrinkable tubes of various materials. DUWAI high temperature resistant heat shrinkable tube manufacturer will give you a detailed explanation.

1. PVDF fluoroplastic heat shrinkable tubes are divided into two types: 150°C soft type and 175°C semi-hard type. The 150°C feel is relatively soft, and the 175°C feel is harder. They can be distinguished from the feel. In addition to the working temperature, The feel is different, but other properties are the same. They are all flame-retardant, resistant to high temperatures, resistant to most oils and chemicals, and are wear-resistant and cut-resistant. The transparent color still has flame-retardant properties and is usually used for the external protection of precision sensor wire harnesses. It can produce medical grade, which is used in occasions where medical equipment needs to be resistant to high temperature and friction, and to insulate and protect electronic components of medical equipment.

2. DR elastomer diesel-resistant heat shrinkable tube can continue to work in a high temperature environment of 150°C for a long time, which is better than the material properties, and has very excellent low-temperature resistance, and can not crack at a low temperature of minus 75°C. It can be used at high temperatures of 150°C for a long time, is resistant to diesel, aviation fuel, and high-temperature fluids, and is widely used to protect wire harnesses or pipelines in diesel engine systems.

3. Silicone heat shrinkable tube can continue to work at high temperatures of 200°C and is very soft. Silicone heat shrink tubing is often used in medical equipment and household appliances that have certain requirements on product flexibility and temperature resistance. It can reach food grade and is very suitable for water dispensers and water purifier water pipes. It can provide high-temperature-resistant insulation treatment, arc-resistant treatment, and corona-resistant treatment for lightning protection devices, and provide insulation protection for wires and cables.

4. The rated working temperature of fluororubber heat shrinkable tube is 200℃, which can reach military standard level. It can be used in environments that require high temperature resistance, oil resistance, and chemical solvent resistance. It has excellent high temperature resistance, chemical corrosion resistance, and solvent resistance. It can effectively prevent wire harnesses, pipelines, or covered components from being exposed to high temperatures, oils, and chemical solvents. protected from corrosion. Commonly used in military fields such as railways.

5. Teflon heat shrink tubing can continue to protect components in a high temperature environment of 260°C. It has excellent physical and chemical properties, with high temperature resistance, high pressure resistance, corrosion resistance, wear resistance, and high mechanical strength. The advantages. Able to work in most oils and chemical solvents without damage. Commonly used in chemical solvents and applications with high temperature resistance above 200℃.

    Commonly used high-temperature heat shrinkable tubes are mainly divided into the above five materials, which can cover most fields and meet various temperatures and harsh environmental requirements.