Experience the unmatched reliability of our high temperature, thick wall 20mm heat shrink tubing. Engineered to perfection, these tubes provide superior insulation and protection, ensuring your components are safe and secure even under extreme conditions.
Heat shrink tube - A cornerstone in electrical insulation and component protection, providing flexibility, durability, and a snug fit for a seamless finish.Introducing our outstanding Heat Shrinkable Tubing from Dongguan Zhonghe Electronics Co., Ltd. Crafted with precision using cutting-edge polymer materials, this tubing excels in enveloping and contracting seamlessly around objects under heat. Our lineup includes tubes from superior polyolefin, fluoroplastic, silicone rubber, and polyester, each with distinct, remarkable properties. These materials ensure our tubes surpass industry standards, catering to diverse and rigorous industrial applications.
Table 1: Exceptional Performance Characteristics of the HF Flame Retardant Heat Shrink Tube
| Property |
Testing Method |
Performance index |
| Physical property |
Tensile strength/MPa |
GB/T1040 |
≥10.4 |
|
| Elongation at break/% |
GB/T1040 |
≥200 |
|
| Tensile strength after thermal aging/MPa |
UL224;158ºC×168hr |
≥7.3 |
|
| Elongation at break after thermal aging/% |
UL224;158ºC×168hr |
≥100 |
|
| Heat shock resistance |
UL224;250ºC×4hr |
Not sticky, non-cracked |
|
| Cold bending resistance |
UL224;-30ºC×1hr |
non-cracked |
|
| Electrical performance |
Withstand voltage |
300V |
UL224 |
1500V,1min no breakdown |
|
| 600V |
UL224 |
2500V,1min no breakdown |
|
| Breakdown strength/KV/mm |
GB/T1408 |
≥15 |
|
| Volume resistivity/Ω•cm |
GB/T1410 |
≥1×1014 |
|
| Chemical property |
Copper stability |
UL224;158ºC×168hr |
PASS |
|
| Corrosion resistance |
UL224;158ºC×168hr |
PASS |
|
| Flame retardancy |
UL224 |
☆ |
|
Important Note: ☆ indicates a need to enhance flame retardant performance for yellow and white tubes. Transparent versions are non-flame retardant, offering additional options based on specific requirements.
Table 2: Detailed Product Dimensions of H-CB Tube
Discover the HF Flame Retardant Thin Wall Heat Shrinkable Tube, designed for excellence in both performance and protection.
Size
(mm) |
Preshrink Size(mm) |
Size after Shrinkag(mm) |
Pack |
Range of Application (mm) |
| Inter Diameter |
Wall Thickness |
Inter Diameter |
Wall Thickness |
| Φ0.6CB |
0.9±0.2 |
0.13±0.05 |
≤0.40 |
0.20±0.10 |
200 |
0.4~0.7 |
| Φ0.8CB |
1.1±0.2 |
0.13±0.05 |
≤0.50 |
0.20±0.10 |
200 |
0.6~0.8 |
| Φ1.0CB |
1.40±0.2 |
0.13±0.05 |
≤0.65 |
0.20±0.10 |
200 |
0.7~1.0 |
| Φ1.5CB |
1.90±0.2 |
0.13±0.05 |
≤0.85 |
0.20±0.10 |
200 |
0.9~1.4 |
| Φ2.0CB |
2.40±0.2 |
0.13±0.05 |
≤1.00 |
0.22±0.10 |
200 |
1.1~1.8 |
| Φ2.5CB |
2.90±0.2 |
0.13±0.05 |
≤1.30 |
0.25±0.10 |
200 |
1.4~2.3 |
| Φ3.0CB |
3.40±0.2 |
0.13±0.05 |
≤1.50 |
0.28±0.10 |
200 |
1.6~2.7 |
| Φ3.5CB |
3.90±0.2 |
0.13±0.05 |
≤1.80 |
0.28±0.10 |
200 |
1.9~3.2 |
| Φ4.0CB |
4.40±0.2 |
0.15±0.05 |
≤2.00 |
0.30±0.10 |
200 |
2.1~3.6 |
| Φ4.5CB |
4.90±0.2 |
0.15±0.05 |
≤2.30 |
0.30±0.10 |
100 |
2.4~4.0 |
| Φ5.0CB |
5.50±0.2 |
0.15±0.05 |
≤2.5 |
0.32±0.10 |
100 |
2.6~4.5 |
| Φ6.0CB |
6.50±0.2 |
0.15±0.05 |
≤3.0 |
0.32±0.10 |
100 |
3.1~5.4 |
| Φ7CB |
7.50±0.3 |
0.15±0.05 |
≤3.5 |
0.32±0.10 |
200 |
3.7~6.3 |
| Φ8CB |
8.50±0.3 |
0.15±0.05 |
≤4.0 |
0.32±0.10 |
200 |
4.2~7.2 |
| Φ9CB |
9.50±0.3 |
0.15±0.05 |
≤4.5 |
0.35±0.10 |
200 |
4.7~8.0 |
| Φ10CB |
10.5±0.3 |
0.15±0.05 |
≤5.0 |
0.35±0.10 |
200 |
5.2~9.0 |
| Φ11CB |
11.5±0.3 |
0.18±0.05 |
≤5.5 |
0.40±0.10 |
200 |
5.7~10.0 |
| Φ12CB |
12.5±0.3 |
0.20±0.05 |
≤6.0 |
0.40±0.10 |
200 |
6.2~11.0 |
| Φ13CB |
13.5±0.3 |
0.20±0.05 |
≤6.5 |
0.40±0.10 |
200 |
6.7~12.0 |
| Φ14CB |
14.5±0.3 |
0.20±0.05 |
≤7.0 |
0.40±0.10 |
200 |
7.3~13.0 |
| Φ15CB |
15.5±0.4 |
0.20±0.05 |
≤7.5 |
0.40±0.10 |
200 |
7.8~14.0 |
| Φ16CB |
16.5±0.4 |
0.22±0.05 |
≤8.0 |
0.40±0.10 |
200 |
8.3~15.0 |
| Φ17CB |
17.5±0.4 |
0.22±0.05 |
≤8.5 |
0.40±0.10 |
200 |
8.8~16.0 |
| Φ18CB |
18.5±0.4 |
0.22±0.05 |
≤9.0 |
0.42±0.10 |
200 |
9.3~17.0 |
| Φ20CB |
20.5±0.5 |
0.25±0.05 |
≤10.0 |
0.45±0.10 |
200 |
10.5~19.0 |
| Φ22CB |
22.5±0.5 |
0.25±0.05 |
≤11.0 |
0.45±0.10 |
200 |
11.5~20.5 |
| Φ25CB |
25.5±0.5 |
0.25±0.05 |
≤12.5 |
0.45±0.10 |
100 |
13.0~24.0 |
| Φ28CB |
28.5±0.5 |
0.30±0.08 |
≤14.0 |
0.60±0.10 |
100 |
14.5~27.0 |
Table 3 Product Dimensions - Adhering to precise specifications, ensuring optimal performance and compatibility with various applications. Carefully designed for the H tube (HF Flame Retardant Heat Shrink Tube), ensuring optimal fit and function.
Size
(mm) |
Preshrink Size
(mm) |
Size after Shrinkag(mm) |
Old packaging |
New packaging |
Range of Application
(mm) |
| Inter Diameter |
Wall Thickness |
Max Inter Diameter |
Wall Thickness |
Meter/Roll |
| Φ0.5 |
0.8±0.2 |
0.18±0.05 |
≤0.30 |
0.33±0.10 |
400 |
400 |
0.3~0.6 |
| Φ0.6 |
0.9±0.2 |
0.18±0.05 |
≤0.40 |
0.33±0.10 |
200 |
400 |
0.4~0.7 |
| Φ0.8 |
1.1±0.2 |
0.18±0.05 |
≤0.50 |
0.33±0.10 |
200 |
400 |
0.6~0.8 |
| Φ1.0 |
1.5±0.2 |
0.20±0.05 |
≤0.65 |
0.36±0.10 |
200 |
400 |
0.75~0.9 |
| Φ1.5 |
2.0±0.2 |
0.20±0.05 |
≤0.85 |
0.36±0.10 |
200 |
400 |
0.95~1.4 |
| Φ2.0 |
2.5±0.2 |
0.20±0.05 |
≤1.00 |
0.45±0.10 |
200 |
400 |
1.1~1.8 |
| Φ2.5 |
3.0±0.2 |
0.20±0.05 |
≤1.30 |
0.45±0.10 |
200 |
400 |
1.35~2.3 |
| Φ3.0 |
3.5±0.2 |
0.20±0.05 |
≤1.50 |
0.45±0.10 |
200 |
400 |
1.6~2.7 |
| Φ3.5 |
4.0±0.2 |
0.23±0.05 |
≤1.80 |
0.45±0.10 |
200 |
400 |
1.85~3.2 |
| Φ4.0 |
4.7±0.2 |
0.25±0.05 |
≤2.00 |
0.45±0.10 |
200 |
400 |
2.1~3.6 |
| Φ4.5 |
5.0±0.2 |
0.28±0.05 |
≤2.30 |
0.56±0.10 |
100 |
200 |
2.35~4.0 |
| Φ5.0 |
5.5±0.2 |
0.28±0.05 |
≤2.50 |
0.56±0.10 |
100 |
200 |
2.6~4.5 |
| Φ5.5 |
6.0±0.2 |
0.28±0.05 |
≤2.80 |
0.56±0.10 |
100 |
200 |
2.9~5.0 |
| Φ6.0 |
6.5±0.2 |
0.28±0.05 |
≤3.00 |
0.56±0.10 |
100 |
200 |
3.1~5.4 |
| Φ7.0 |
7.5±0.3 |
0.30±0.05 |
≤3.50 |
0.56±0.10 |
100 |
100 |
3.7~6.3 |
| Φ8.0 |
8.5±0.3 |
0.30±0.05 |
≤4.00 |
0.56±0.10 |
100 |
100 |
4.2~7.2 |
| Φ9.0 |
9.5±0.3 |
0.30±0.08 |
≤4.50 |
0.56±0.10 |
100 |
100 |
4.7~8.0 |
| Φ10 |
10.5±0.3 |
0.30±0.08 |
≤5.00 |
0.56±0.10 |
100 |
100 |
5.2~9.0 |
| Φ11 |
11.5±0.3 |
0.30±0.08 |
≤5.50 |
0.56±0.10 |
100 |
100 |
5.7~10 |
| Φ12 |
12.5±0.3 |
0.30±0.08 |
≤6.00 |
0.56±0.10 |
100 |
100 |
6.2~11 |
| Φ13 |
13.5±0.3 |
0.35±0.10 |
≤6.50 |
0.56±0.10 |
100 |
100 |
6.7~12 |
| Φ14 |
14.5±0.3 |
0.35±0.10 |
≤7.00 |
0.70±0.10 |
100 |
100 |
7.3~13 |
| Φ15 |
15.5±0.4 |
0.35±0.10 |
≤7.50 |
0.70±0.10 |
100 |
100 |
7.8~14 |
| Φ16 |
16.5±0.4 |
0.35±0.10 |
≤8.00 |
0.70±0.10 |
100 |
100 |
8.3~15 |
| Φ17 |
17.5±0.4 |
0.35±0.10 |
≤8.50 |
0.70±0.10 |
100 |
100 |
8.8~16 |
| Φ18 |
19.0±0.5 |
0.35±0.10 |
≤9.00 |
0.70±0.10 |
100 |
100 |
9.3~17 |
| Φ20 |
22.0±0.5 |
0.40±0.12 |
≤10.00 |
0.83±0.15 |
100 |
100 |
10.4~19 |
| Φ22 |
24.0±0.5 |
0.40±0.12 |
≤11.00 |
0.83±0.15 |
100 |
100 |
11.4~21 |
| Φ25 |
26.0±0.5 |
0.45±0.12 |
≤12.50 |
0.90±0.15 |
50 |
50 |
12.8~24 |
| Φ28 |
29.0±0.5 |
0.45±0.12 |
≤14.00 |
0.90±0.15 |
50 |
50 |
14.4~29 |
| Φ30 |
31.5±1.0 |
0.45±0.12 |
≤15.00 |
1.00±0.15 |
50 |
50 |
16~29 |
| Φ35 |
36.5±1.0 |
0.45±0.12 |
≤17.50 |
1.00±0.15 |
50 |
50 |
18~34 |
| Φ40 |
41.5±1.0 |
0.50±0.15 |
≤20.00 |
1.00±0.15 |
50 |
50 |
21~39 |
| Φ45 |
46.5±1.0 |
0.50±0.15 |
≤22.5 |
1.00±0.20 |
25 |
25 |
23.5~44 |
| Φ50 |
≥50 |
0.50±0.15 |
≤25.0 |
1.00±0.20 |
25 |
25 |
26~49 |
| Φ60 |
≥60 |
0.60±0.15 |
≤30.0 |
1.30±0.25 |
25 |
25 |
35-55 |
| Φ70 |
≥70 |
0.65±0.15 |
≤36.0 |
1.30±0.25 |
25 |
25 |
40-65 |
| Φ80 |
≥80 |
0.70±0.18 |
≤41.0 |
1.46±0.30 |
25 |
25 |
45-75 |
| Φ90 |
≥90 |
0.70±0.18 |
≤46.0 |
1.46±0.30 |
25 |
25 |
50-88 |
Note: Specifications of Φ30 and above default to the G tube model, fully compliant with EU RoHS2.0 environmental performance standards (2011/65/EU).
1. Operating Conditions
1.1 Engineered for continuous operation in ambient temperatures from -55°C to 125°C, providing outstanding performance in varied climates.
1.2 Demonstrating exceptional resilience in long-term exposure to both harsh acidic and alkaline environments, ensuring reliability.
1.3 Built to meet rigorous environmental protection standards, guaranteeing safety and sustainability.
2. Appearance Requirements
2.1 Surface must be immaculate, showcasing a flawless exterior free from visible scratches, uneven textures, or bamboo-joint-like marks, ensuring a pristine finish.
2.2 Exterior finish should be impeccably smooth, with no oil stains or dust accumulation, representing superior quality and maintenance.
2.3 Guaranteed printing excellence with no ghosting, excess ink, incomplete prints, or print slippage, ensuring clear and precise labeling.
3. Heat Shrinkage Performance
3.1 Enjoy swift efficiency as shrinkage begins at 70°C, achieving full contraction at 125°C for optimal fit and security.
Complying with UL224 standards, reach complete shrinkage at 200°C within just 3 minutes, ensuring rapid and reliable performance.
3.2 The longitudinal shrinkage rate is meticulously controlled within ±5%, guaranteeing consistent and reliable results.
4. Performance Characteristics of Materials
The physical and chemical properties of the materials are meticulously aligned with the criteria detailed in Table 1, ensuring top-tier quality and performance.
The dimensions of halogen-free, flame-retardant, thin-wall heat-shrinkable sleeves strictly adhere to specifications in Table 2, ensuring precision and reliability.
The dimensions of halogen-free, flame-retardant heat-shrinkable sleeves precisely follow the guidelines in Table 3, upholding high standards of quality.
Our vibrant palette includes standard black, red, blue, yellow, green, and white, with custom colors like purple, gray, and brown available to meet specific customer desires, ensuring personalization and satisfaction.
Experience the superior craftsmanship of our premium Single Wall Heat Shrink Tube, designed meticulously for enhanced performance. To ensure exceptional shrinkage, it's important to follow precise steps. Utilize a forced-air constant-temperature oven, accurately setting it to a shrinkage temperature of 125°C. Initially, the oven's temperature may decrease when the heat-shrinkable sleeve is placed inside. However, with patience and care, the oven will stabilize and gradually reach the specified temperature. The sleeve will then require careful timing to achieve its optimal shrinkage temperature, perfectly assisted by the circulating hot air within the oven. It is only when the oven's temperature matches the set point and maintains this consistency for a steady 3-minute period that the sleeve will fully reach its shrinkage potential, ensuring unmatched reliability and performance.
8. Application Field
8.1 Providing exceptional insulation protection for the complex internal wiring systems of electronic devices, safeguarding against electrical failures and enhancing longevity.
8.2 Insulation protection for electronics internal wiring
8.3 Secure your communication cables with our solution to ensure they are both waterproof and dust-proof, offering unparalleled protection against environmental hazards.
8.4 Dependable and robust protection for household wire connections, ensuring safety and durability for all your at-home electrical needs.
8.5 Utilize our versatile materials for your creative DIY jewelry projects, providing flexibility and creativity to elevate your custom designs.
Company Profile
Dongguan Zhonghe Electronics Co., Ltd. is a beacon of innovation and excellence, a powerhouse in the realm of technology-driven enterprises. Esteemed for its unmatched expertise in the development, production, and marketing of advanced polymer modified protective materials, this pioneering company offers a complete suite of one-stop solutions. Since its inception in 2010, it has strategically positioned its headquarters in the vibrant and forward-thinking Qingxi Town, Dongguan City. In a move reflecting its relentless pursuit of growth and innovation, 2020 marked the establishment of a cutting-edge branch factory in Jiangsu, encompassing a vast 15,000 square meters. This expansion is a testament to its unwavering commitment to technological progress.
Dongguan Zhonghe Electronics Co., Ltd. embodies a business philosophy that champions the ideals of unity and mutually rewarding cooperation. Each member of the organization dedicates themselves to the mission of 'escorting the Internet of Things,' passionately creating unparalleled value and spreading joy to our cherished customers. We warmly welcome both domestic and international clients, inviting you to visit our facilities for engaging discussions and promising collaborations!
Currently, the company proudly serves an extraordinary clientele base spanning 102 countries worldwide, catering to over 3,000 satisfied customers. Each year, the protective sleeves crafted by our expertise can circle the globe three times, with an impressive 60 million meters dedicated exclusively to the automotive industry. Our unwavering dedication to excellence has cemented our reputation as a trusted, long-term supplier to numerous automotive OEMs and globally renowned enterprises.
Certifications
Zhonghe Electronics proudly highlights a remarkable collection of certifications that underscore our steadfast dedication to superior quality and environmental stewardship. Our distinguished credentials encompass the esteemed ISO9001 and IATF16949 quality management system certifications, alongside the rigorous ISO14001 certification for environmental management. Elevating our production capabilities, our advanced MES system ensures unparalleled product consistency and delivers an impressive 5% reduction in losses, surpassing industry standards. Our innovative spirit radiates through our committed R&D team and cutting-edge laboratory, where our creativity flourishes with 5 notable invention patents and 18 utility model patents. Reflecting our tireless quest for excellence, we introduce 3 to 5 groundbreaking products each year, meticulously crafted to not only fulfill but exceed customer expectations, catering to their varied and evolving needs with accuracy.
Exhibition & Our Partners
Packaging & Shipping
01 : Why choose us?
A: 1. With a legacy of more than 15 years in the ever-evolving electronics industry, we deliver premium quality and exceptional service. Your absolute satisfaction is our utmost priority!
2. Our trailblazing research and development team excels in crafting bespoke solutions, impeccably tailored to meet the distinctive needs of our clients, ensuring a seamless fit every time!
3. Our devoted and professional sales team is passionately committed to providing you with unparalleled service, consistently exceeding your expectations!
02 : What's the MOQ for your production?
A: Whether your order is large or small, we are flexible and ready to accommodate your needs. Contact us for detailed, customized information.
03: Can I expect to get the sample?How long can I expect to get it?
A: Certainly, we provide free samples to meet your testing requirements. Expect delivery within approximately 4-6 days for a prompt and efficient evaluation.
Shipment times may vary based on distance and your selected courier service, offering flexibility and convenience according to your delivery preferences.
04 : Can you do the design for us?
A: Absolutely, as a seasoned manufacturer, we have the expertise to adeptly handle your design needs, transforming your visionary ideas into reality.
05 : What's your payment term?
A: We offer a streamlined payment process: a 30% T/T deposit with the balance due before shipment, ensuring a secure and smooth transaction.
06 : What's the list of certificates you hold?
A: We proudly possess prestigious certifications including IATF16949, RoHS, CE, EN45545 Test Report, and ELV Test report, underscoring our dedication to compliance and superior quality assurance.
Audited Supplier 
){kind=link}