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High-Quality Silicone Heat Shrink Tubing from China Factory - Reliable Suppliers for Insulation and Protection
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High-Quality Silicone Heat Shrink Tubing from China Factory - Reliable Suppliers for Insulation and Protection

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Product Overview

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Our Silicone Heat Shrink Tubing is a premium insulation and protection solution manufactured in China. Made from high-quality silicone, this tubing is designed to easily shrink in inner diameter when exposed to heat, providing a secure fit for various applications.

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With exceptional high and low-temperature resistance, weather durability, and superior electrical properties, our silicone heat shrink tubing is the ideal choice for both heavy and light industrial electrical systems, transportation equipment, and home appliances. It is also suitable for diverse applications, including roller shafts and paint masking.

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As a trusted supplier with a state-of-the-art factory, we ensure that our heat shrink silicone tubing enhances efficiency and streamlines operations while maintaining reliable performance in even the most challenging environments.

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  • Project: Conventional type
  • Usage Temperature Range(℃): More than 100
  • Usage Temperature Range(℃): -50-170
  • Tensile Strength(MPa): ≥6.5
  • Fire Retardant Grade: UL-94

Features
  • Enhanced Softness and Strength

    Crafted from 100% virgin wood pulp with delicate embossing, each tissue achieves an optimal balance of luxurious softness and structural integrity. The embossing process not only creates an elegant texture but also increases the surface area, improving absorbency without compromising gentleness on the skin. The long, pure fibers ensure high wet strength, preventing tearing or linting during use. This makes it ideal for facial care, guest amenities, and sensitive skin applications, offering a noticeably premium experience compared to standard tissues.

  • Brand Promotion and Aesthetic Appeal

    The tissue box serves as a versatile branding canvas, allowing full customization of logos, colors, patterns, and text. Whether for luxury hotels, corporate gifts, boutique retailers, or event souvenirs, the design can be tailored to reflect brand identity and enhance visual cohesion in any setting. The box itself is made from sturdy, high-quality cardboard with a smooth finish, ensuring durability and a polished appearance. This customization capability turns a practical item into a powerful marketing tool that reinforces brand recognition and leaves a lasting impression.

  • Commercial Versatility and Bulk Efficiency

    Designed to support a wide range of commercial applications, this product is available in bulk quantities with streamlined customization workflows. From small boutique orders to large-scale corporate procurement, it offers scalable solutions that cater to hotels, spas, offices, and promotional campaigns. The combination of high-quality materials and efficient packaging ensures cost-effectiveness without sacrificing premium appeal. By reducing per-unit costs through wholesale options, it provides businesses with a practical yet sophisticated way to elevate customer experiences and operational standards.

Characteristics
Project Conventional type
Shrink Temperature (℃) More than 100
Usage Temperature Range (℃) -50 ~ 170
Tensile Strength (MPa) ≥6.5
Tear / Peel Strength (KN/m) ≥25
Ultimate Elongation (%) ≥400
Pull-off Permanent Deformation (%) ≥20
Rebound Degree (%) ≥35
Proportion (G/mL) 1±0.1
Dielectric Strength (KV/mm) ≥20
Fire Retardant Grade UL-94
Hardness (A) 65±10
Main Purpose
Silicone Heat Shrink Tube31

Heavy Industry and Light Industry Electrical Fields

◎ Heat-resistant protection for internal heaters and sensors in various semiconductor devices.
◎ Heat-resistant protection for internal wiring in photocopiers.
◎ Brushes and rotor insulation covers for generators and vehicle motors.
◎ Power plant, substation brush protection against short circuits caused by birds and small animals.
◎ Heat-resistant and insulating protection for various resistors, transformers, induction heating furnace coils, etc. Temperature sensor lead protection and terminal handling.
◎ Insulation coating for large motor armature wires.
◎ Fiber Optic Outer Jacket.

Silicone Heat Shrink Tube Application 1

Household Appliances Field

◎ Protection and coating for the terminal parts of heating cables in electronic ovens, electronic fryers, etc.
◎ Cabling protection for air conditioning transformer.
◎ Water Heater Protection Cover.
◎ Rice cooker temperature sensor lead protection.

Silicone Heat Shrink Tube Application 2

Transportation Equipment Field

◎ Heat-resistant coating for various vehicle sensors (oxygen, temperature, etc.).
◎ Application of Car Spark Plug.
◎ Heater Housing Application.
◎ Terminal processing of various wiring harnesses.
◎ Terminal processing for wiring of various transportation equipment.
◎ Buffer material for the turbocharger connection part Anti-Vibration Bicycle Brake Cable Fixing Strap.

Silicone Heat Shrink Tube Application 3

Various Types of Rollers and Other Fields

◎ Masking for Paint and Similar Materials.
◎ Manila Rope Sleeve.
◎ Dental Grinder Handle Sleeve.
◎ Fastening of various thermoformed preforms.

Product Specification Sheet
Silicone heat shrink tube (conventional) 1.7 times tolerance and packaging mode
Specifications Before Contraction After Contraction Packing MOQ
Inner diameter Wall thickness Inner diameter Wall thickness
1 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 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 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 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 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 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 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 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 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 (conventional) 2 times tolerance and packaging mode
Specifications Before Contraction After Contraction Packing MOQ
Inner diameter Wall thickness Inner diameter Wall thickness
1 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 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 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 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 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 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 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 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 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 46307 1.0±0.2 4.88-5.56 2.0±0.3 50M 500M
11 46339 1.0±0.2 5.37-6.11 2.0±0.3 50M 500M
12 46370 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 1.1±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
Frequently Asked Questions
What is the operating temperature range of silicone heat shrink tubing?
Silicone heat shrink tubing supports a usage temperature range of -50°C to +170°C, with a shrink activation temperature exceeding 100°C. This wide range makes it suitable for high-heat industrial environments as well as cold-climate applications.
What shrink ratios are available for silicone heat shrink tubes?
Two standard shrink ratios are available: 1.7:1 (conventional) and 2:1 (conventional). Both options cover a wide range of inner diameters from 1mm up to 220mm, with corresponding wall thickness specifications before and after contraction.
What industries and applications are silicone heat shrink tubes used for?
Silicone heat shrink tubes are widely used across heavy and light industry electrical fields, household appliances, transportation equipment, and various roller applications. Common uses include insulation for motor windings, protection of sensors, cable management, spark plug applications, and roller masking.
What is the minimum order quantity (MOQ) for silicone heat shrink tubes?
MOQ varies by size. Smaller diameter tubes (1mm–11mm) typically have an MOQ of 1,000M–2,000M, while larger diameters (90mm and above) have an MOQ of 75M–100M. Standard packing lengths range from 25M to 200M per roll or bar.
What is the dielectric strength and fire retardant rating of these tubes?
The silicone heat shrink tube offers a dielectric strength of ≥20 KV/mm and meets the UL-94 fire retardant grade standard, making it safe and reliable for high-voltage and fire-sensitive electrical applications.
Can silicone heat shrink tubes be customized in color or size?
Yes. Silicone heat shrink tubes are available in a wide range of standard sizes from 1mm to 220mm inner diameter. Custom sizes, colors, and specifications can be accommodated for bulk or OEM orders. Please contact us with your specific requirements for a tailored quotation.