| Certification: | RoHS, ISO, Reach |
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| Color: | Orange |
| Usage: | Optical Cable, Earphone Line, Electric Wire, DVI Line, HDMI Cable, Insulators |
| Samples: |
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| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier 
Shanghai Wellco International Limited presents a high-quality cross-linked modified polyolefin material that is perfect for various applications. With an operating temperature range of -55ºC to 125ºC, this material is designed to withstand extreme conditions.
Our product features a minimum shrink temperature of 70ºC, ensuring efficient and reliable performance. The minimum fully recovery temperature of 120ºC guarantees that the material will fully recover and provide optimal protection.
With a shrink ratio of 2:1, 3:1, and 4:1, our material offers versatility for different projects. It is soft and flexible, making it easy to work with and adapt to various shapes and sizes.
Our material is not only high-performing but also environmentally friendly. It is halogen-free, emits low smoke, and complies with "RoHS" and "REACH" regulations. Additionally, it has UL224 VW-1 flammability rating, ensuring safety in any application.
One of the key advantages of our material is its excellent insulation, heat resistance, and voltage performance. It provides reliable protection for electronics, subways, buildings, public facilities, and more.
Choose Shanghai Wellco International Limited for a top-quality cross-linked modified polyolefin material that meets your needs. Experience the benefits of our product's exceptional performance and reliability.
| Test Items | Test Methods | Performance |
| Temperature Rating | UL224 | 125ºC |
| Length Rate Of Change | ASTM D2671 | -5ºC~+5ºC |
| Tensile Strength | ASTM D638 | ≥10.4MPa |
| Breaking Elongation | ASTM D638 | ≥200% |
| Hot Air Aging Test | 158.0ºC/168h | - |
| Thermal Aging Tensile Strength | ASTM D638 | ≥7.3MPa |
| Heat Aging Breaking Elongation | ASTM D638 | ≥100% |
| Voltage Level | UL224 | 300V/600V |
| Volume Resistivity | ASTM D2671 | ≥1.0x1012cm |
| Breakdown Voltage | UL224 | 2500V(60s) No Breakdown |
| Thermal Stock | UL224/250ºC±3ºC/4h | Does not drip, Does not flow, Does not crack |
| With heart | ASTM D2671 | ≥70% |
|
Size
|
As supplied (mm)
|
after full Recovery(mm)
|
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|
Diameter(D)
|
Thickness(T)
|
Diameter(d)
|
Thickness(t)
|
|
|
2:1
|
||||
|
Ф0.7
|
1.0+0.2/-0.1
|
0.18±0.05
|
≤0.40
|
0.32±0.08
|
|
Ф0.8
|
1.2+0.2/-0.1
|
0.18±0.05
|
≤0.45
|
0.34±0.08
|
|
Ф1.0
|
1.5+0.2/-0.1
|
0.18±0.05
|
≤0.60
|
0.36±0.08
|
|
Ф1.5
|
2.1+0.2/-0.1
|
0.18±0.05
|
≤0.80
|
0.36±0.08
|
|
Ф2.0
|
2.5+0.2/-0.1
|
0.20±0.05
|
≤1.00
|
0.42±0.08
|
|
Ф2.5
|
3.0+0.2/-0.1
|
0.22±0.05
|
≤1.25
|
0.46±0.08
|
|
Ф3.0
|
3.5+0.2/-0.1
|
0.22±0.05
|
≤1.50
|
0.46±0.08
|
|
Ф3.5
|
4.0+0.2/-0.1
|
0.22±0.05
|
≤1.75
|
0.46±0.08
|
|
Ф4.0
|
4.6+0.2/-0.1
|
0.22±0.05
|
≤2.00
|
0.46±0.08
|
|
Ф4.5
|
5.0+0.2/-0.1
|
0.23±0.05
|
≤2.25
|
0.46±0.08
|
|
Ф5.0
|
5.5+0.2/-0.1
|
0.25±0.05
|
≤2.50
|
0.50±0.08
|
|
Ф5.5
|
6.0+0.2/-0.1
|
0.25±0.05
|
≤2.75
|
0.50±0.08
|
|
Ф6.0
|
6.5+0.2/-0.1
|
0.25±0.05
|
≤3.00
|
0.55±0.10
|
|
Ф6.5
|
6.9+0.2/-0.1
|
0.25±0.05
|
≤3.25
|
0.55±0.10
|
|
Ф7.0
|
7.5+0.2/-0.1
|
0.25±0.05
|
≤3.50
|
0.55±0.10
|
|
Ф8.0
|
8.5+0.3/-0.1
|
0.28±0.06
|
≤4.00
|
0.58±0.10
|
|
Ф9.0
|
9.5+0.2/-0.1
|
0.28±0.06
|
≤4.50
|
0.58±0.10
|
|
Ф10
|
10.5+0.3/-0.1
|
0.28±0.06
|
≤5.00
|
0.58±0.10
|
|
Ф11
|
11.5+0.3/-0.1
|
0.28±0.06
|
≤5.50
|
0.58±0.10
|
|
Ф12
|
12.5+0.3/-0.1
|
0.28±0.06
|
≤6.00
|
0.58±0.10
|
|
Ф13
|
13.5+0.3/-0.1
|
0.28±0.06
|
≤6.50
|
0.58±0.10
|
|
Ф14
|
14.5+0.3/-0.1
|
0.28±0.06
|
≤7.00
|
0.58±0.10
|
|
Ф15
|
15.5+0.3/-0.1
|
0.28±0.06
|
≤7.50
|
0.58±0.10
|
|
Ф16
|
16.5+0.3/-0.1
|
0.28±0.06
|
≤8.00
|
0.58±0.10
|
|
Ф17
|
17.5+0.3/-0.1
|
0.28±0.06
|
≤8.50
|
0.58±0.10
|
|
Ф18
|
18.5+0.3/-0.1
|
0.32±0.08
|
≤9.00
|
0.68±0.10
|
|
Ф20
|
20.6+0.5/-0.2
|
0.32±0.08
|
≤10.0
|
0.68±0.10
|
|
Ф22
|
22.6+0.7/-0.2
|
0.35±0.08
|
≤11.0
|
0.72±0.12
|
|
Ф25
|
25.6+0.7/-0.2
|
0.40±0.10
|
≤12.5
|
0.78±0.12
|
|
Ф28
|
28.6+0.7/-0.2
|
0.40±0.10
|
≤14.0
|
0.78±0.12
|
|
Ф30
|
30.6+0.7/-0.2
|
0.40±0.10
|
≤15.0
|
0.82±0.12
|
|
Ф35
|
35.6+0.7/-0.2
|
0.45±0.10
|
≤17.5
|
0.92±0.12
|
|
Ф40
|
41.0±0.5
|
0.50±0.12
|
≤20.0
|
1.00±0.15
|
|
Ф45
|
46.0±0.5
|
0.50±0.12
|
≤22.5
|
1.00±0.15
|
|
Ф50
|
51.0±1.0
|
0.55±0.15
|
≤25.0
|
1.10±0.15
|
|
Ф55
|
55.5±1.0
|
0.55±0.15
|
≤27.5
|
1.10±0.15
|
|
Ф60
|
60.5±1.0
|
0.60±0.15
|
≤30.0
|
1.25±0.20
|
|
Ф70
|
71.0±1.0
|
0.60±0.15
|
≤35.0
|
1.25±0.20
|
|
Ф80
|
81.0±1.0
|
0.60±0.15
|
≤40.0
|
1.25±0.20
|
|
Ф90
|
91.0±1.0
|
0.60±0.15
|
≤45.0
|
1.25±0.20
|
|
Ф100
|
101.0±1.0
|
0.60±0.15
|
≤50.0
|
1.25±0.20
|
|
Note: Other sizes and colors can be available upon request
|
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Shanghai Wellco International Limited is a professional team with 18 years of experience in R&D, production, and sales of special heat shrink tubes and other radiation crosslinking materials. We specialize in providing a wide range of products and solutions for insulation, connection, waterproofing, high temperature resistance, chemical resistance, EMI protection, and mechanical protection for wires and cables.
With a strong technical force and advanced production equipment, we offer heat shrink tubes and insulation tubes made from various materials such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, FEP, PTFE, and more. Our products find extensive applications in electronic communication, automobile, high-speed rail, electric motor, aviation, medical, and other industries. They provide insulation, water-proofing, electrostatic shielding, oil resistance, chemical resistance, and high-temperature protection. Our products have obtained UL certification, RoHS compliance, and REACH compliance.
We also specialize in producing customized products and developing products with special requirements based on customer needs. Our production processes adhere to the ISO9001 and IATF16949 quality management system standards, ensuring the stability and reliability of product quality.
Shanghai Wellco International Limited is a professional manufacturer of special heat shrink tubes and other radiation crosslinking insulation materials. With over 20 years of experience in insulation, we are based in Shanghai, China and have been serving customers since 2017.
Our office consists of a dedicated team of 5-10 people, committed to providing high-quality products and excellent customer service.
We prioritize quality and ensure it through various measures:
At Shanghai Wellco International Limited, we offer a range of high-quality products, including:
There are several reasons why you should choose us as your supplier:
We offer a range of services to meet your needs:
Suppliers with verified business licenses
Audited Supplier 
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