| Application: | Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Insulating Varnish, Switch Baseplate, Electric Wire |
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| Type: | Insulation Sleeve |
| Chemistry: | Organic Insulation |
| 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 has a minimum shrink temperature of 70ºC and a minimum fully recovery temperature of 120ºC, ensuring reliable performance. With a shrink ratio of 2:1, it provides a secure and tight fit.
One of the key features of our material is its halogen-free environment and low smoke emission, making it environmentally friendly. It complies with "RoHS" and "REACH" regulations, ensuring its safety and compliance with international standards.
The material is soft and flexible, allowing for easy installation and maneuverability. It also has excellent insulation properties, providing reliable protection against electrical currents. Additionally, it offers exceptional heat resistance and voltage performance.
Our product meets the UL224 VW-1 flammability standard, guaranteeing its fire-resistant properties. This makes it suitable for a wide range of applications, including electronics, subways, buildings, and public facilities.
Choose Shanghai Wellco International Limited's cross-linked modified polyolefin material for its outstanding features and benefits. Trust in our high-quality product to meet your specific needs.
| 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% |
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Size
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As supplied (mm)
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after full Recovery(mm)
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|
Diameter(D)
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Thickness(T)
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Diameter(d)
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Thickness(t)
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2:1
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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
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≤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
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≤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
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12.5+0.3/-0.1
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0.28±0.06
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≤6.00
|
0.58±0.10
|
|
Ф13
|
13.5+0.3/-0.1
|
0.28±0.06
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≤6.50
|
0.58±0.10
|
|
Ф14
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14.5+0.3/-0.1
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0.28±0.06
|
≤7.00
|
0.58±0.10
|
|
Ф15
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15.5+0.3/-0.1
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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
|
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Ф25
|
25.6+0.7/-0.2
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0.40±0.10
|
≤12.5
|
0.78±0.12
|
|
Ф28
|
28.6+0.7/-0.2
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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
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35.6+0.7/-0.2
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0.45±0.10
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≤17.5
|
0.92±0.12
|
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Ф40
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41.0±0.5
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0.50±0.12
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≤20.0
|
1.00±0.15
|
|
Ф45
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46.0±0.5
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0.50±0.12
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≤22.5
|
1.00±0.15
|
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Ф50
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51.0±1.0
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0.55±0.15
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≤25.0
|
1.10±0.15
|
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Ф55
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55.5±1.0
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0.55±0.15
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≤27.5
|
1.10±0.15
|
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Ф60
|
60.5±1.0
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0.60±0.15
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≤30.0
|
1.25±0.20
|
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Ф70
|
71.0±1.0
|
0.60±0.15
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≤35.0
|
1.25±0.20
|
|
Ф80
|
81.0±1.0
|
0.60±0.15
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≤40.0
|
1.25±0.20
|
|
Ф90
|
91.0±1.0
|
0.60±0.15
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≤45.0
|
1.25±0.20
|
|
Ф100
|
101.0±1.0
|
0.60±0.15
|
≤50.0
|
1.25±0.20
|
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Note: Other sizes and colors can be available upon request
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With 18 years of experience, Shanghai Wellco International Limited is a professional team specializing in the research and development, production, and sales of special heat shrink tubes and other radiation crosslinking materials. Our focus is on providing a wide range of products and solutions for insulation, connection, waterproofing, high temperature resistance, chemical resistance, EMI protection, and mechanical protection for wire and cable applications.
Our company boasts a strong technical force with 20 years of experience and advanced production equipment. We offer a variety of heat shrink tubes and insulation tubes made from materials such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, FEP, and PTFE. These products find extensive use 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.
In addition to our standard product range, we also offer customization options to meet specific customer requirements. We can develop products with special features according to customer needs. Our production processes adhere to the ISO9001 and IATF16949 quality management system standards, ensuring the stability and reliability of our 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 dedicated to providing high-quality products to our customers.
We are based in Shanghai, China, and have been operating since 2017. Our products are sold worldwide, with our main markets being North America (20.00%), South Asia (20.00%), Southeast Asia (15.00%), Western Europe (15.00%), South America (5.00%), Eastern Europe (5.00%), Mid East (5.00%), Northern Europe (5.00%), Eastern Asia (3.00%), Domestic Market (3.00%), Southern Europe (2.00%), Africa (00.00%), and Central America (00.00%). Our team consists of 5-10 dedicated professionals.
We prioritize quality and ensure that our products meet the highest standards. We conduct a pre-production sample before mass production and a final inspection before shipment.
Our product range includes:
When you choose Shanghai Wellco International Limited, you benefit from:
We offer the following services:
Suppliers with verified business licenses
Audited Supplier 
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