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    China Professional Silicone Heat Shrink Tube Factory - Top Quality Suppliers of High-Purity Silicone Tubing
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    China Professional Silicone Heat Shrink Tube Factory - Top Quality Suppliers of High-Purity Silicone Tubing

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    Product Overview

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    Introducing our premium silicone heat shrink tubing, manufactured in China from high-purity silicone rubber. This product undergoes a specialized surface treatment to achieve a smooth and glossy finish, ensuring superior performance in various applications. As a leading supplier, our factory guarantees outstanding physical and chemical properties, making this silicone tubing ideal for protecting and insulating electrical connections. Key advantages include excellent flexibility, durability, and resistance to environmental factors, making it a reliable choice for your needs.

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    • Project: Bright type
    • Usage Temperature Range(℃): More than 100
    • Usage Temperature Range(℃): -50-200
    • Tensile Strength(MPa): ≥3.0
    • Fire Retardant Grade(UL-94): V1 (3mm thickness)
    Contact us
    Product Details

    Features
    • ◎ Enhanced Softness and Strength

      Operating from -60°C to 200°C, it withstands prolonged exposure to high-temperature baking, freezing, and rapid thermal cycling, preventing material tendering or deformation. Ideal for automotive engine compartments and industrial ovens.

    • ◎ Superior Flexibility & Sealing

      The silicone material ensures high elasticity, allowing the tubing to shrink tightly around cables and form a seamless seal against moisture, dust, and chemical gases. Its tear resistance surpasses standard heat shrink tubing, resisting mechanical bending and vibration-induced cracking.

    • ◎ High Insulation & Dielectric Performance

      With a dielectric strength exceeding 20kV/mm, it provides reliable insulation for high-voltage cables, preventing leakage and arcing. Low dielectric constant and loss tangent (tanδ) make it suitable for high-frequency signal transmission, minimizing signal attenuation.

    • ◎ Environmental & Safety Compliance

      RoHS and REACH compliant, free from halogens and phthalates. Low smoke and halogen-free upon combustion, ensuring safety in aerospace and rail transit applications. UL 94 V-0 flame retardant certified.

    Characteristics
    Project Bright type
    Shrink Temperature(℃) More than 100
    Usage Temperature Range(℃) -50-200
    Tensile Strength（MPa） ≥3.0
    Tearing strength; peeling strength（KN/m） ≥10
    Ultimate Elongation（%） ≥250
    Pull off permanent deformation（%） ≥5.0
    Rebound ratio（%） ≥30
    Proportion（G/mL） 1.2±0.1
    Dielectric strength（KV/mm） ≥20
    Fire retardant grade (UL-94) V1 (3mm thickness)
    Hardness(A) 65±10
    Application
    Product Application4

    Product Application

    Glossy silicone heat shrink tubing is widely used in demanding sectors due to its heat resistance, flexibility, and environmental safety. In electronics, it safeguards PCBs, sensors, and connectors from mechanical damage and EMI. For automotive applications, it protects battery packs, wiring harnesses, and engine components against oil and vibration. In renewable energy, it resists UV rays and outdoor conditions for solar inverters and wind turbines.

    Product Application5

    Product Application

    Medical devices benefit from its biocompatibility, ensuring sterile cable protection. Home appliances like coffee machines and microwaves rely on its insulation and sealing. Aerospace applications utilize its extreme temperature tolerance for aircraft wiring. The glossy surface aids cleaning and maintenance, ideal for automated production lines.

    Product Specification Sheet
    Silicone heat-shrink tube (bright) 1.7 Times
    Specification Before contraction After contraction Packing MOQ
    Inner diameter Wall thickness Inner diameter Wall thickness
    1.0 1.0-1.5 0.5±0.1 0.54-0.69 0.8±0.15 200M 2000M
    1.5 1.5-2.0 0.5±0.1 0.81-1.03 0.8±0.15 200M 2000M
    2.0 2.0-2.5 0.5±0.1 1.08-1.38 0.8±0.15 200M 2000M
    2.5 2.5-3.0 0.5±0.1 1.35-1.72 0.8±0.15 200M 2000M
    3.0 3.0-3.5 0.5±0.1 1.62-2.07 0.8±0.15 200M 1200M
    3.5 3.5-4.2 0.5±0.1 1.89-2.41 0.8±0.15 200M 1200M
    4.0 4.0-4.8 0.5±0.1 2.16-2.76 0.8±0.15 200M 1200M
    4.5 4.5-5.3 0.5±0.1 2.43-3.1 0.8±0.15 200M 1200M
    5.0 5.0-5.8 0.5±0.1 2.7-3.45 0.8±0.15 200M 1200M
    5.5 5.5-6.5 0.5±0.1 2.97-3.79 0.8±0.15 200M 1000M
    6.0 6.0-7.0 0.5±0.1 3.24-4.14 0.8±0.15 200M 1000M
    6.5 6.5-7.5 0.5±0.1 3.51-4.48 0.9±0.15 200M 1000M
    7.0 7.0-8.0 0.5±0.1 3.78-4.83 0.9±0.15 100M 1000M
    7.5 7.5-8.5 0.5±0.1 4.05-5.17 0.9±0.15 100M 1000M
    8.0 8.0-9.2 0.5±0.1 4.32-5.52 0.9±0.15 100M 1000M
    8.5 8.5-9.7 0.5±0.15 4.59-5.86 0.9±0.15 100M 1000M
    9.0 9.0-10.3 0.5±0.15 4.86-6.21 0.9±0.15 100M 1000M
    10 10-11.5 0.5±0.15 5.41-6.9 0.9±0.15 100M 500M
    11 11-12.5 0.5±0.15 5.95-7.59 0.9±0.15 100M 500M
    10 10-12 1.0±0.2 5.41-6.9 1.8±0.2 50M 500M
    11 11-13 1.0±0.2 5.95-7.59 1.8±0.2 50M 500M
    12 12-14 1.0±0.2 6.49-8.28 1.8±0.2 50M 500M
    13 13-15.5 1.0±0.2 7.03-8.97 1.8±0.2 50M 500M
    14 14-16.5 1.0±0.2 7.57-9.66 1.8±0.2 50M 500M
    15 15-17.5 1.0±0.2 8.11-10.34 1.9±0.2 50M 500M
    16 16-18.8 1.0±0.2 8.65-11.03 1.9±0.2 50M 500M
    17 17-19.8 1.0±0.2 9.19-11.72 1.9±0.2 50M 300M
    18 18-20.8 1.0±0.2 9.73-12.41 1.9±0.2 50M 300M
    19 19-21.8 1.0±0.2 10.27-13.1 1.9±0.2 50M 300M
    20 20-22.8 1.0±0.25 10.81-13.79 2.0±0.2 50M 300M
    21 21-24.5 1.0±0.25 11.35-14.48 2.0±0.2 25M 300M
    22 22-25.5 1.0±0.25 11.89-15.17 2.0±0.2 25M 300M
    25 25-28.5 1.0±0.25 13.51-17.24 2.0±0.2 25M 200M
    30 30-34 1.0±0.25 16.22-20.69 2.0±0.2 25M 200M
    35 35-40 1.0±0.25 18.92-24.14 2.1±0.3 25M 200M
    40 40-45 1.0±0.3 21.62-27.59 2.1±0.3 25M 200M
    45 45-50 1.0±0.3 24.32-31.03 2.1±0.3 25M 150M
    50 50-56 1.0±0.3 27.03-34.48 2.1±0.3 25M 150M
    60 60-66 1.0±0.3 32.43-41.38 2.1±0.3 25M 150M
    70 65-80 1.0±0.4 37.84-48.27 2.1±0.3 25M 100M
    80 75-90 1.0±0.4 43.24-55.17 2.2±0.35 25M 100M
    90 85-100 1.3±0.3 48.65-62.07 2.5±0.3 1M-Bar 100M
    100 95-110 1.3±0.35 54.05-68.97 2.5±0.35 1M-Bar 100M
    110 105-120 1.3±0.35 59.46-75.86 2.6±0.35 1M-Bar 100M
    120 115-130 1.4±0.35 64.86-82.76 2.6±0.4 1M-Bar 75M
    130 125-140 1.4±0.4 70.27-89.66 2.6±0.4 1M-Bar 75M
    140 130-150 1.5±0.4 75.68-96.55 2.6±0.4 1M-Bar 75M
    150 140-160 1.5±0.4 81.08-103.45 2.7±0.4 1M-Bar 75M
    160 150-170 1.5±0.4 85-95 2.8±0.4 1M-Bar 75M
    170 160-180 1.5±0.4 85-95 3.0±0.4 1M-Bar 75M
    180 170-190 1.5±0.4 85-95 3.2±0.4 1M-Bar 75M
    190 180-200 1.5±0.5 95-105 3.2±0.5 1M-Bar 75M
    200 190-210 1.5±0.5 95-110 3.2±0.5 1M-Bar 75M
    210 200-220 1.5±0.5 95-110 3.2±0.5 1M-Bar 75M
    220 210-230 1.5±0.5 95-110 3.2±0.5 1M-Bar 75M
    Silicone heat shrink tube (bright) 2 Times
    Specification Before contraction After contraction Packing MOQ
    Inner diameter Wall thickness Inner diameter Wall thickness
    1.0 1.0-1.5 0.5±0.1 0.49-0.56 1.0±0.15 200M 2000M
    1.5 1.5-2.0 0.5±0.1 0.73-0.83 1.0±0.15 200M 2000M
    2.0 2.0-2.5 0.5±0.1 0.98-1.11 1.0±0.15 200M 2000M
    2.5 2.5-3.0 0.5±0.1 1.22-1.39 1.0±0.15 200M 2000M
    3.0 3.0-3.5 0.5±0.1 1.46-1.67 1.0±0.15 200M 1200M
    3.5 3.5-4.2 0.5±0.1 1.71-1.94 1.0±0.15 200M 1200M
    4.0 4.0-4.8 0.5±0.1 1.95-2.22 1.0±0.2 200M 1200M
    4.5 4.5-5.3 0.5±0.1 2.2-2.5 1.0±0.2 200M 1200M
    5.0 5.0-5.8 0.5±0.1 2.44-2.78 1.0±0.2 200M 1200M
    5.5 5.5-6.5 0.5±0.1 2.68-3.06 1.0±0.2 200M 1000M
    6.0 6.0-7.0 0.5±0.15 2.93-3.33 1.0±0.2 200M 1000M
    6.5 6.5-7.5 0.5±0.15 3.17-3.61 1.0±0.2 200M 1000M
    7.0 7.0-8.0 0.5±0.15 3.41-3.89 1.0±0.2 100M 1000M
    7.5 7.5-8.5 0.5±0.15 3.66-4.17 1.0±0.2 100M 1000M
    8.0 8.0-9.2 0.5±0.15 3.9-4.44 1.0±0.2 100M 1000M
    8.5 8.5-9.7 0.5±0.15 4.15-4.72 1.0±0.2 100M 1000M
    9.0 9.0-10.3 0.5±0.15 4.39-5 1.0±0.2 100M 1000M
    10 10-11.5 0.5±0.15 4.88-5.56 1.0±0.2 100M 500M
    11 11-12.5 0.5±0.15 5.37-6.11 1.0±0.2 100M 500M
    10 10-12 1.0±0.2 4.88-5.56 2.0±0.3 50M 500M
    11 11-13 1.0±0.2 5.37-6.11 2.0±0.3 50M 500M
    12 12-14 1.0±0.2 5.85-6.67 2.0±0.3 50M 500M
    13 13-15.5 1.0±0.2 6.34-7.22 2.0±0.3 50M 500M
    14 14-16.5 1.0±0.2 6.83-7.78 2.0±0.3 50M 500M
    15 15-17.5 1.0±0.2 7.32-8.33 2.0±0.3 50M 500M
    16 16-18.8 1.0±0.2 7.8-8.89 2.0±0.3 50M 500M
    17 17-19.8 1.0±0.2 8.29-9.44 2.0±0.3 50M 300M
    18 18-20.8 1.0±0.2 8.78-10 2.0±0.3 50M 300M
    19 19-21.8 1.0±0.2 9.27-10.56 2.0±0.3 50M 300M
    20 20-22.8 1.0±0.25 9.76-11.11 2.0±0.3 50M 300M
    21 21-24.5 1.0±0.25 10.24-11.67 2.0±0.3 25M 300M
    22 22-25.5 1.0±0.25 10.73-12.22 2.0±0.3 25M 300M
    25 25-28.5 1.0±0.25 12.2-13.89 2.0±0.3 25M 200M
    30 30-34 1.0±0.25 14.63-16.67 2.0±0.3 25M 200M
    35 35-40 1.0±0.25 17.07-19.44 2.0±0.3 25M 200M
    40 40-45 1.0±0.3 19.51-22.22 2.0±0.3 25M 200M
    45 45-50 1.0±0.3 21.95-25 2.0±0.3 25M 150M
    50 50-56 1.0±0.3 24.39-27.78 2.3±0.3 25M 150M
    60 60-66 1.0±0.3 29.27-33.33 2.3±0.3 25M 150M
    70 65-80 1.0±0.4 34.15-38.89 2.3±0.5 25M 100M
    80 75-90 1.0±0.4 39.02-44.44 2.3±0.5 25M 100M
    90 85-100 1.3±0.3 43.9-50 2.6±0.6 1M-Bar 100M
    100 95-110 1.3±0.5 48.78-55.56 2.6±0.6 1M-Bar 100M
    110 105-120 1.3±0.5 53.66-61.11 2.7±0.6 1M-Bar 100M
    120 115-130 1.3±0.6 58.54-66.67 2.8±0.7 1M-Bar 75M
    130 125-140 1.3±0.6 63.41-72.22 2.8±0.7 1M-Bar 75M
    140 130-150 1.6±0.6 68.29-77.78 3.0±0.8 1M-Bar 75M
    150 140-160 1.6±0.6 73.17-83.33 3.2±0.8 1M-Bar 75M
    160 150-170 1.6±0.6 85-94 3.2±0.8 1M-Bar 75M
    170 160-180 1.6±0.6 85-94 3.2±0.8 1M-Bar 75M
    180 170-190 1.6±0.6 85-94 3.3±0.8 1M-Bar 75M
    190 180-200 1.8±1.0 95-103 3.3±1.0 1M-Bar 75M
    200 190-210 1.8±1.0 95-108 3.5±1.0 1M-Bar 75M
    210 200-220 1.8±1.0 95-108 3.6±1.2 1M-Bar 75M
    220 210-230 1.8±1.0 95-108 3.8±1.2 1M-Bar 75M
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    Frequently Asked Questions
    • + What is the operating temperature range of this glossy silicone heat shrink tubing?
      The glossy silicone heat shrink tubing operates over a wide temperature range of -60°C to 200°C (usage range -50°C to 200°C), making it suitable for extreme environments including high-temperature industrial ovens and deep-freeze storage applications.
    • + What shrink ratios are available for this silicone heat shrink tubing?
      Two shrink ratios are available: 1.7× and 2× (2:1). Both versions are offered in a comprehensive range of sizes from 1.0mm to 220mm inner diameter to accommodate various cable and component sizes.
    • + What compliance certifications does this product hold?
      This silicone heat shrink tubing is RoHS and REACH compliant, free from halogens and phthalates. It also meets UL 94 V-0 (and V1 at 3mm thickness) flame retardant standards, making it safe for use in aerospace, rail transit, and other regulated industries.
    • + What is the dielectric strength of this silicone heat shrink tubing?
      The dielectric strength of this tubing exceeds 20 kV/mm, providing excellent high-voltage insulation performance. It is suitable for protecting high-voltage cables, preventing electrical leakage and arcing in demanding applications.
    • + What industries and applications is this tubing suitable for?
      This tubing is widely used across electronics (PCBs, sensors, connectors), automotive (battery packs, wiring harnesses), renewable energy (solar inverters, wind turbines), medical devices, aerospace, rail transit, and home appliances. Its biocompatibility and glossy easy-clean surface make it ideal for automated production lines as well.
    • + What is the minimum order quantity (MOQ) and packaging for this product?
      MOQ varies by size: smaller diameters (1.0–2.5mm) have an MOQ of 2000M per reel, mid-range sizes typically require 500M–1200M, and larger diameter tubing (90mm and above) is packaged in 1M bars with an MOQ starting from 75M. Please refer to the specification sheet for detailed packing and MOQ information per size.