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    China Professional Suppliers of High-Quality Silicone Heat Shrink Tube Factory for Superior Protection
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    China Professional Suppliers of High-Quality Silicone Heat Shrink Tube Factory for Superior Protection

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    Product Overview

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    Discover our premium silicone heat shrink tubing, produced by a leading factory in China. This high-purity silicone rubber is meticulously processed with an advanced surface treatment, resulting in a glossy finish that enhances its durability. As one of the top suppliers in the industry, we ensure that our tubing offers exceptional physical and chemical properties. Key benefits include:

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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 in a temperature range of -60°C to 200°C (usage range -50°C to 200°C), making it suitable for extreme environments including automotive engine compartments, industrial ovens, and aerospace applications where both high-heat and freezing conditions are encountered.

    Two main shrink ratio options are available: 1.7 Times and 2 Times. Both variants are offered in a wide range of specifications from 1.0mm up to 220mm inner diameter, with varying wall thicknesses to suit different cable protection requirements. Custom sizes can also be accommodated upon request.

    Yes. The tubing is fully RoHS and REACH compliant, free from halogens and phthalates. It carries a UL 94 V-0 flame retardant certification, produces low smoke upon combustion, and is halogen-free, making it safe for use in aerospace, rail transit, medical, and consumer electronics applications.

    The dielectric strength exceeds 20 kV/mm, providing robust insulation for high-voltage cable applications. Its low dielectric constant and loss tangent (tanδ) also make it highly suitable for high-frequency signal transmission, minimizing signal attenuation in demanding electronic environments.

    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 (coffee machines, microwaves), aerospace (aircraft wiring), and automated production lines. Its glossy surface also aids easy cleaning and maintenance.

    MOQ varies by specification size. Smaller diameter sizes (1.0mm–11mm) typically have an MOQ of 1,000M–2,000M, packaged in 100M–200M rolls. Larger diameter sizes have reduced MOQs starting from 75M–500M, packaged in 25M rolls or 1M bars. Please refer to the specification sheet for exact packaging and MOQ details per size.