| Certification: | RoHS, ISO |
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| Color: | Yellow & Green |
| Usage: | Electric Wire, Coating |
| 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 heat shrink tubing made of cross-linked modified polyolefin. This tubing is designed to withstand extreme temperatures ranging from -55ºC to 125ºC, making it suitable for various applications.
The heat shrink tubing has a minimum shrink temperature of 70ºC, ensuring a secure fit when heated. It also has a minimum fully recovery temperature of 120ºC, allowing it to return to its original shape and size after shrinking.
With a shrink ratio of 2:1, this tubing provides a tight and reliable seal. Its vibrant yellow/green color adds visibility and makes it easy to identify.
Our heat shrink tubing is not only visually appealing but also environmentally friendly. It is halogen-free, emits low smoke, and complies with "RoHS" and "REACH" regulations, ensuring a safe and sustainable product.
The tubing is soft and flexible, allowing for easy installation and maneuverability. It meets the UL224 VW-1 flammability standard, providing excellent insulation and heat resistance.
With its outstanding insulation, heat resistance, and voltage performance, this heat shrink tubing is suitable for a wide range of applications. It is commonly used in electronics, subways, buildings, public facilities, and more.
Choose Shanghai Wellco International Limited's heat shrink tubing for reliable and durable solutions. Enhance your projects with our high-quality product.
| 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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Dimension before shrinkage(mm)
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Dimension After shrinked(mm)
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Diameter(D)
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Wall Thickness(T)
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Diameter(d)
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Wall Thickness(t)
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2.0
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2.5+0.2/-0.1
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0.20±0.05
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≤1.00
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0.42±0.08
|
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2.5
|
3.0+0.2/-0.1
|
0.22±0.05
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≤1.25
|
0.46±0.08
|
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3.0
|
3.5+0.2/-0.1
|
0.22±0.05
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≤1.50
|
0.46±0.08
|
|
3.5
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4.0+0.2/-0.1
|
0.22±0.05
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≤1.75
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0.46±0.08
|
|
4.0
|
4.6+0.2/-0.1
|
0.22±0.05
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≤2.00
|
0.46±0.08
|
|
4.5
|
5.0+0.2/-0.1
|
0.23±0.05
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≤2.25
|
0.46±0.08
|
|
5.0
|
5.5+0.2/-0.1
|
0.25±0.05
|
≤2.50
|
0.50±0.08
|
|
5.5
|
6.0+0.2/-0.1
|
0.25±0.05
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≤2.75
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0.50±0.08
|
|
6.0
|
6.5+0.2/-0.1
|
0.25±0.05
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≤3.00
|
0.55±0.10
|
|
6.5
|
6.9+0.2/-0.1
|
0.25±0.05
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≤3.25
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0.55±0.10
|
|
7.0
|
7.5+0.2/-0.1
|
0.25±0.05
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≤3.50
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0.55±0.10
|
|
8.0
|
8.5+0.3/-0.1
|
0.28±0.06
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≤4.00
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0.58±0.10
|
|
9.0
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9.5+0.2/-0.1
|
0.28±0.06
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≤4.50
|
0.58±0.10
|
|
10
|
10.5+0.3/-0.1
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0.28±0.06
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≤5.00
|
0.58±0.10
|
|
11
|
11.5+0.3/-0.1
|
0.28±0.06
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≤5.50
|
0.58±0.10
|
|
12
|
12.5+0.3/-0.1
|
0.28±0.06
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≤6.00
|
0.58±0.10
|
|
13
|
13.5+0.3/-0.1
|
0.28±0.06
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≤6.50
|
0.58±0.10
|
|
14
|
14.5+0.3/-0.1
|
0.28±0.06
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≤7.00
|
0.58±0.10
|
|
15
|
15.5+0.3/-0.1
|
0.28±0.06
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≤7.50
|
0.58±0.10
|
|
16
|
16.5+0.3/-0.1
|
0.28±0.06
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≤8.00
|
0.58±0.10
|
|
17
|
17.5+0.3/-0.1
|
0.28±0.06
|
≤8.50
|
0.58±0.10
|
|
18
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18.5+0.3/-0.1
|
0.32±0.08
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≤9.00
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0.68±0.10
|
|
20
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20.6+0.5/-0.2
|
0.32±0.08
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≤10.0
|
0.68±0.10
|
|
22
|
22.6+0.7/-0.2
|
0.35±0.08
|
≤11.0
|
0.72±0.12
|
|
25
|
25.6+0.7/-0.2
|
0.40±0.10
|
≤12.5
|
0.78±0.12
|
|
28
|
28.6+0.7/-0.2
|
0.40±0.10
|
≤14.0
|
0.78±0.12
|
|
30
|
30.6+0.7/-0.2
|
0.40±0.10
|
≤15.0
|
0.82±0.12
|
|
35
|
35.6+0.7/-0.2
|
0.45±0.10
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≤17.5
|
0.92±0.12
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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 wires and cables.
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 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.
In addition to our standard product range, 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 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.
Our product range includes heat shrink tubes, heat shrink mould parts, marking sleeves, and cold shrink tubes. These products are designed to meet various insulation needs.
We guarantee the quality of our products through a rigorous process. Before mass production, we always provide a pre-production sample for approval. Additionally, a final inspection is conducted before shipment to ensure that our customers receive only the best.
We serve customers worldwide, with a focus on North America (20.00%), South Asia (20.00%), Southeast Asia (15.00%), Western Europe (15.00%), South America (5.00%), Eastern Europe (5.00%), the Middle East (5.00%), Northern Europe (5.00%), Eastern Asia (3.00%), the Domestic Market (3.00%), Southern Europe (2.00%), Africa (00.00%), and Central America (00.00%).
We offer flexible delivery terms including FOB, CFR, CIF, EXW, CIP, FCA, DDP, DDU, and Express Delivery. Accepted payment currencies are USD, EUR, and CNY, and we accept payment types such as T/T, L/C, MoneyGram, PayPal, and Western Union. Our team is fluent in English, Chinese, and Japanese.
Suppliers with verified business licenses
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