| Customization: | Available |
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| Certification: | ISO |
| Color: | Black,Orange,Red,Yellow, Transparent |
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Product description: Our 3:1 and 4:1 double-walled heat shrink tubing is meticulously crafted using a double-layer of halogen-free, flame-retardant polyolefin with a robust hot melt adhesive inner lining. The outer polyolefin layer is distinguished by its insulating properties, halogen-free composition, and superior flame-retardance, ensuring unparalleled safety and durability. The interior hot melt adhesive layer provides exceptional mechanical strain buffering and a strong seal, delivering top-tier performance. Key functions include sealing, waterproofing, anti-corrosion, and anti-leakage, alongside multi-strand wiring harnessing and insulation. Ideal for use in diverse applications like various wiring harnesses, marine wires, and metal pipes requiring sealing, insulation, bundling, and fixation. Features include a flame-retardant, UV-resistant, and wear-resistant outer layer, a versatile shrink ratio of 3:1, and compliance with RoHS and REACH environmental protection standards. Available in black, orange, red, yellow, transparent, with customization options for other colors.
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Performance item
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Instruct
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Experiment Method
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Tensile Strength
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≥10.4MPa
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ASTM D 2671
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Elongation at break
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≥300%
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ASTM D 2671
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Tensile strength after heat aging
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≥8.4MPa
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158°C x168h
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Elongation at break after heat aging
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≥100%
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158°C x168h
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Axial change rate
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-8%~ 8%
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ASTM D 2671
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Flame retardant
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Flame retardant VW-1 or GB2408-V0, self-extinguishing in 30 seconds
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AMS-DTL-23053/5
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Breakdown strength
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≥15KV/mm
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IEC 60243
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Withstand voltage (rated voltage 600V)
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2500V, 1min without breakdown
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UL 224
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Volume resistivity
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21040.cm
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IEC 60093
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Hot melt adhesive technical instructions
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Performance item
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instruct
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experiment method
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Softening Point
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85+3°C
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ASTM E 28
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Water absorption
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≤0.2%
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ASTM D 570
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Peel strength (PE)
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≥120N/25mm
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ASTM D 1000
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Peel strength (AL)
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≥80N/25mm.
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ASTM D 1000
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