heat shrink cable sleeve single wall heat shrinkable tubing
Heat shrink tubeThis exceptional product, also known as heat shrinkable tubing, is meticulously engineered from cutting-edge polymer materials. Its hallmark feature is its remarkable capability to snugly contract around encased objects upon exposure to heat. At Dongguan Zhonghe Electronics Co., Ltd, our heat shrink tubes are expertly crafted using premium polyolefin, fluoroplastic, silicone rubber, and polyester. Each material endows the tubing with unique and impressive attributes, enabling our heat shrink tubes to meet the varied and stringent demands across multiple industries.
Table 1: Performance characteristics of 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 that the flame retardant performance in yellow and white requires enhancement, and the transparent heat shrink tube is non-flame retardant.
Table 2: 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 Applicable for H tube (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: Φ30 and above specification products default to G tube, meeting the environmental performance standards in compliance with EU RoHS2.0 (2011/65/EU standard).
1. Operating Conditions
1.1 Our heat shrink tubes are designed for continuous use across vast temperature ranges, from a brisk -55°C to a toasty 125°C, ensuring reliable performance even under fluctuating conditions.
1.2 Built to withstand harsh environments, our tubes demonstrate remarkable endurance in both acidic and alkaline conditions, highlighting their robust engineering.
1.3 Developed for resilience, our tubes are meticulously engineered to thrive under stringent environmental protection guidelines, offering peace of mind and durability.
2. Appearance Requirements
2.1 The product surface exudes excellence, maintaining an immaculate appearance free of noticeable scratches, uneven textures, or bamboo-joint-like imperfections, epitomizing quality craftsmanship.
2.2 Every exterior finish is crafted to be flawlessly smooth, ensuring a pristine surface devoid of oil stains or dust accumulation, reflecting our commitment to superior aesthetics.
2.3 Our printing quality is impeccable, guaranteeing no ghosting, excess ink, incomplete prints, or slippage, upholding our dedication to precision and clarity.
3. Heat Shrinkage Performance
3.1 Initiating shrinkage begins at 70°C with full shrinkage achieved at 125°C, showcasing our product's efficiency and reliability in heat application.
Conforming to UL224 standards, full-shrinkage temperature is set at 200°C, accomplished within 3 minutes, highlighting our product's rapid response to thermal exposure.
3.2 Ensuring precision, the rate of longitudinal shrinkage is maintained within a tight ±5%, demonstrating our commitment to uniformity and quality control.
4. Performance Characteristics of Materials
The materials' physical and chemical properties are strictly aligned with the stipulations in Table 1, ensuring compliance and excellence in every aspect.
The dimensions for halogen-free, flame-retardant, thin-wall heat-shrinkable sleeves adhere precisely to the specifications outlined in Table 2, ensuring exactitude and readiness for any application.
The dimensions for halogen-free, flame-retardant heat-shrinkable sleeves faithfully follow the guidelines specified in Table 3, guaranteeing precision and adaptability.
Standard colors available include black, red, blue, yellow, green, and white. For those seeking a personalized touch, customization is possible for other colors such as purple, gray, brown, etc., tailored to customer preferences.
When utilizing our Premium Single Wall Heat Shrink Tube, precision is key to achieving perfect shrinkage. To ensure top-notch results, use a forced-air constant-temperature oven, meticulously setting the shrinkage temperature at an exact 125°C. Initially, the internal oven temperature might dip once the heat-shrinkable sleeve is introduced. Exercise patience and allow the oven temperature to stabilize at the targeted degree. Once stabilized, the sleeve will gradually reach its ideal shrinkage through the efficient circulation of hot air within the oven. For the sleeve to achieve complete shrinkage, ensure the oven's actual temperature aligns perfectly with the set point, maintaining this level consistently for a minimum of 3 minutes.
8. Application Field
8.1 Insulation protection for the sophisticated internal wiring of electronic devices
8.2 Insulation protection for electronics internal wiring
8.3 Ensure communication cables are guarded against water and dust, enhancing durability
8.4 Provide reliable safeguarding for household wiring connections
8.5 Use as versatile materials to craft exquisite DIY jewelry
Company Profile
Dongguan Zhonghe Electronics Co., Ltd. stands as a pioneering beacon in the world of technology-driven enterprises, celebrated for its mastery in the development, manufacturing, and marketing of innovative polymer modified protective materials. With an unwavering dedication to providing holistic one-stop solutions, this dynamic company was founded in 2010 and strategically operates from the vibrant, forward-thinking hub of Qingxi Town in Dongguan City. Reflecting its ambitious growth and relentless pursuit of technological advancements, a modern branch factory was launched in 2020 in Jiangsu, covering an expansive 15,000 square meters.
Dongguan Zhonghe Electronics Co., Ltd. embodies a business philosophy rooted in the ideals of unity and mutually beneficial cooperation. Our team is passionately driven by the mission to 'escort the Internet of Things,' committing to creating exceptional value and delivering joy to our cherished clientele. We extend a warm invitation to our esteemed domestic and international clients to visit our facilities, fostering fruitful negotiations and partnerships.
Today, our company proudly serves an extensive clientele across 102 countries, boasting a strong network of over 3,000 customers. Each year, the protective sleeves we produce could circle the Earth three times, dedicating a significant 60 million meters specifically for the automotive industry. Our unwavering commitment to excellence has solidified our reputation as a trusted, long-term supplier to numerous automobile OEMs and globally renowned enterprises.
Certifications
Zhonghe Electronics proudly stands as a beacon of excellence, showcasing an enviable array of world-class certifications. We are honored to be accredited with the prestigious ISO9001 and IATF16949 quality management systems, alongside the challenging ISO14001 environmental management certification. Our commitment to exceptional production quality is underscored by the integration of a sophisticated MES system, delivering unmatched product consistency and achieving a remarkable reduction in losses by 5% over industry norms. At the heart of our continuous innovation lies our visionary R&D team and state-of-the-art laboratory, where we hold an impressive collection of 5 invention patents and 18 utility model patents. Annually, we launch 3 to 5 innovative products, each crafted with precision to surpass customer expectations and adapt to their dynamic requirements.
Exhibition & Our Partners

Packaging & Shipping
01 : Why choose us?
A:1. We boast over 15 years of unrivaled expertise in the electronics industry, ensuring top-notch quality and service!
2. Our cutting-edge research and development team excels at crafting bespoke solutions tailored to meet the unique demands of our customers!
3. Our dedicated and professional sales team is committed to delivering exceptional service to you!
02 : What's the MOQ for your production?
A: Whether your needs are large or small, we are flexible and ready to accommodate your order. Please reach out for further details.
03: Can I expect to get the sample?How long can I expect to get it?
A: Absolutely, we provide complimentary samples for testing purposes. You can expect delivery in approximately 4-6 days.
Shipment times vary based on distance and the chosen courier service.
04 : Can you do the design for us?
A: Yes, as a professional manufacturer, we are fully equipped to handle your design needs and bring your vision to life.
05 : What's your payment term?
A: We require a 30% T/T deposit with the balance to be settled before shipment.
06 : What's the list of certificates you hold?
A: Our credentials include IATF16949, RoHS, CE, EN45545 Test Report, and ELV Test report, ensuring compliance and quality assurance.