Experience the ultimate in high-temperature protection with our robust, thick wall 20mm heat shrink tubing, designed to elevate your industrial applications with unmatched durability and performance.
State-of-the-art Heat Shrink Tube: revolutionizing thermal protection and insulation with cutting-edge materials and design.Introducing the exquisite Heat Shrinkable Tubing from Dongguan Zhonghe Electronics Co., Ltd. Meticulously engineered with advanced polymer materials, this tubing epitomizes precision, effortlessly enveloping and contracting around objects when heated. Our premier collection boasts tubes crafted from top-tier polyolefin, fluoroplastic, silicone rubber, and polyester, each distinguished by unique and extraordinary attributes. These superior materials guarantee that our tubes not only meet but exceed industry benchmarks, catering to a wide range of demanding industrial applications.
Table 1: Unrivaled 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: ☆ signifies the potential need to amplify flame retardant capabilities for yellow and white tubes. Transparent versions do not possess flame retardant properties.
Table 2: Comprehensive Product Dimensions of H-CB Tube.
(HF Flame Retardant Thin Wall Heat Shrinkable Tube)
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. Engineered with precision for the H tube, our HF Flame Retardant Heat Shrink Tube.
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 beyond automatically default to the G tube model, which rigorously meets EU RoHS2.0 environmental performance standards (2011/65/EU).
1. Operating Conditions.
1.1 Designed for seamless operation in ambient temperatures ranging from an icy -55°C to a balmy 125°C, ensuring reliability across various thermal conditions.
1.2 Demonstrating superior resilience, our tubing is engineered for prolonged use in both harsh acidic and alkaline environments.
1.3 Constructed to withstand stringent environmental protection standards, reflecting our commitment to sustainability and durability.
2. Appearance Requirements.
2.1 The surface must be pristine, devoid of any visible scratches, irregular textures, or bamboo-joint-like imperfections, ensuring a flawless finish.
2.2 The exterior finish must be impeccably smooth, completely free from oil stains and dust, presenting an immaculate appearance.
2.3 Achieving printing excellence with no occurrence of ghosting, surplus ink, incomplete prints, or print misalignment, ensuring clarity and precision.
3. Heat Shrinkage Performance.
3.1 Shrinkage initiates at 70°C, reaching complete contraction at 125°C, ensuring optimal fitting and performance.
Compliant with UL224 standards, achieving full shrinkage at 200°C within just 3 minutes, delivering efficiency and reliability.
3.2 Longitudinal shrinkage rate is meticulously regulated within ±5%, ensuring dimensional consistency and accuracy.
4. Performance Characteristics of Materials.
The materials' physical and chemical properties are expertly calibrated to align with the specifications detailed in Table 1, ensuring superior performance and reliability.
The dimensions of our halogen-free, flame-retardant, thin-wall heat-shrinkable sleeves strictly conform to the precise specifications in Table 2, ensuring optimal fit and performance.
Our halogen-free, flame-retardant heat-shrinkable sleeves meticulously adhere to the detailed guidelines in Table 3, promising exactness and quality.
Our standard color palette includes classic shades of black, red, blue, yellow, green, and white. We also offer bespoke color options such as purple, gray, and brown to meet customer-specific preferences and requirements.
Experience unparalleled performance with our Premium Single Wall Heat Shrink Tube, expertly crafted for excellence and precision. To achieve the pinnacle of shrinkage, meticulous care and attention to detail are required. For optimal results, utilize a forced-air constant-temperature oven and set the shrinkage temperature with precision at 125°C. It's crucial to be aware that upon placing the heat-shrinkable sleeve within the oven, the initial temperature may experience a temporary dip. Patience is vital, as the oven will gradually stabilize, reaching the specified temperature. Following this stabilization, the sleeve will have the opportunity to attain its ultimate shrinkage temperature, expertly facilitated by the circulating hot air within the oven. The sleeve will realize its full shrinkage potential when the oven's actual temperature aligns perfectly with the set point, maintaining this alignment consistently for a steadfast duration of 3 minutes.
8. Application Field
8.1 Insulation protection for the intricate internal wiring of electronics
8.2 Insulation protection for electronics internal wiring
8.3 Ensure communication cables are waterproof and dust-proof
8.4 Reliable protection for household wire connections
8.5 Versatile materials for DIY jewelry making
Company Profile
Dongguan Zhonghe Electronics Co., Ltd. stands as a shining beacon of innovation and unparalleled excellence, firmly establishing itself as a powerhouse in the dynamic world of technology-driven enterprises. Renowned for its unrivaled expertise, the company excels in the development, production, and marketing of advanced polymer modified protective materials, offering a comprehensive suite of one-stop solutions. Since its inception in 2010, it has strategically anchored its headquarters in the vibrant and forward-thinking city of Qingxi Town, Dongguan City. Marking a significant milestone in its relentless pursuit of growth and innovation, 2020 witnessed the establishment of a state-of-the-art branch factory in Jiangsu, sprawling across an impressive 15,000 square meters. This strategic expansion stands as a testament to its unwavering commitment to technological advancement and progress.
Dongguan Zhonghe Electronics Co., Ltd. thrives on a business philosophy that truly embodies its name - championing the ideals of unity and mutually rewarding cooperation. Every member of the organization is passionately devoted to the mission of 'escorting the Internet of Things,' with a focus on crafting value and spreading joy to our cherished customers. We extend an enthusiastic and heartfelt welcome to all our esteemed domestic and international clients, inviting you to visit our cutting-edge facilities for engaging discussions and promising collaborations that promise to unlock new opportunities and success!
Currently, the company is proud to serve an extraordinary clientele spanning 102 countries across the globe, catering to the needs of over 3,000 satisfied customers. Each year, the protective sleeves engineered by our expert team can circle the globe an astounding three times, with a remarkable 60 million meters dedicated exclusively to the automotive industry. Our steadfast commitment to excellence has solidified our reputation as a trusted and long-term supplier to numerous automotive OEMs and globally renowned enterprises, ensuring that we remain at the forefront of innovation and reliability in the industry.
Certifications
Zhonghe Electronics stands at the pinnacle of excellence with a distinguished array of certifications, underscoring our steadfast dedication to unparalleled quality and environmental stewardship. Our esteemed certifications portfolio includes the renowned ISO9001 and IATF16949 quality management system certifications, alongside the rigorous ISO14001 certification for environmental management systems. Elevating our production capabilities, the integration of an advanced MES system ensures unrivaled product uniformity and achieves an impressive 5% reduction in losses, surpassing industry benchmarks. Our commitment to innovation is exemplified by our passionate R&D team and cutting-edge laboratory facilities, where our creativity is embodied in 5 prestigious invention patents and 18 utility model patents. Embodying our relentless quest for superiority, we introduce 3 to 5 groundbreaking products each year, meticulously crafted to not only meet but exceed customer expectations, adeptly catering to their diverse and ever-evolving needs with meticulous precision.
Exhibition & Our Partners
Packaging & Shipping
01 : Why choose us?
A: 1. With a remarkable history spanning over 15 years in the ever-evolving electronics industry, we promise unrivaled quality and extraordinary service. Ensuring your satisfaction is our unwavering mission!
2. Our innovative research and development team excels in creating bespoke solutions that perfectly align with the distinct needs of our clients, guaranteeing an impeccable fit every time!
3. Fueled by a strong passion and professionalism, our sales team is fully committed to delivering superior service, tirelessly striving to exceed your expectations!
02 : What's the MOQ for your production?
A: We offer unmatched flexibility, accommodating orders of any scale, be it grand or modest. We are prepared to meet your demands. Reach out for personalized details crafted to meet your specifications.
03: Can I expect to get the sample?How long can I expect to get it?
A: Absolutely, we provide complimentary samples to facilitate your evaluation. Expect delivery in an expedient 4-6 days, ensuring a rapid and seamless assessment.
Shipment durations may differ based on distance and chosen courier service, offering flexibility and ease tailored to your delivery preferences.
04 : Can you do the design for us?
A: Certainly, as a seasoned manufacturer, we are well-equipped to handle your design requirements with precision, transforming your visionary ideas into tangible realities.
05 : What's your payment term?
A: Our payment terms are 30% T/T deposit with the balance settled before shipment, ensuring a seamless and secure transaction experience.
06 : What's the list of certificates you hold?
A: We proudly possess highly regarded certifications such as IATF16949, RoHS, CE, EN45545 Test Report, and ELV Test report, showcasing our dedication to compliance and superior quality assurance.
Audited Supplier 
){kind=link}