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    High-Quality China Silicone Heat Shrink Tube Factory - Trusted Suppliers of Durable Silicone Tubing Solutions
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    High-Quality China Silicone Heat Shrink Tube Factory - Trusted Suppliers of Durable Silicone Tubing Solutions

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    Product Overview

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    Introducing our premium silicone heat shrink tubing, expertly manufactured in China from high-purity silicone rubber. This product undergoes a specialized surface treatment, resulting in a smooth and glossy finish while ensuring superior physical and chemical properties. As a leading supplier and factory of silicone heat shrink tubing, we take pride in our core advantages, including exceptional durability, flexibility, and resistance to extreme temperatures. Enhance your projects with our reliable silicone solutions today!

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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
    Glossy silicone heat shrink tubing operates across a wide temperature range of -60°C to 200°C. It can withstand prolonged exposure to high-temperature baking, freezing environments, and rapid thermal cycling without material tendering or deformation, making it ideal for automotive engine compartments and industrial ovens.
    The silicone heat shrink tubing is available in two shrink ratios: 1.7 Times and 2 Times. Both types are offered in a wide range of specifications from 1.0mm to 220mm inner diameter, with various wall thickness options to suit different application requirements.
    This silicone heat shrink tubing is RoHS and REACH compliant, free from halogens and phthalates. It meets UL 94 V-0 flame retardant certification and produces low smoke and is halogen-free upon combustion, ensuring safety compliance for aerospace, rail transit, and other demanding applications.
    This tubing is widely used across electronics (PCBs, sensors, connectors), automotive (battery packs, wiring harnesses, engine components), renewable energy (solar inverters, wind turbines), medical devices, home appliances, and aerospace applications. Its glossy surface also makes it ideal for automated production lines requiring easy cleaning and maintenance.
    The dielectric strength exceeds 20 kV/mm, providing reliable insulation for high-voltage cables and preventing leakage and arcing. Its low dielectric constant and loss tangent (tanδ) also make it suitable for high-frequency signal transmission, minimizing signal attenuation in sensitive electronic applications.
    The MOQ and packing vary by specification size. Smaller diameter tubing (e.g., 1.0mm–2.5mm) has an MOQ of 2000M with standard packing of 200M per roll. Larger diameter tubing has progressively lower MOQs, ranging down to 75M for sizes above 120mm. Please refer to the product specification sheet for exact details per size.