| Certification: | RoHS, ISO, Reach |
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| Color: | Black/Red/Blue/Green/White |
| 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 
Material: Cross-linked modified polyolefin
Operating temperature: -55ºC~125ºC
Minimum shrink temperature: 70ºC
Minimum fully recovery temperature: 120ºC
Shrink ratio: 2:1
Features:
Application: Widely used in electronics, subways, buildings, public facilities, and more.
Company name: Shanghai Wellco International Limited
| 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
|
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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
|
≤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
|
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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, and PTFE. 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 passed UL certification, RoHS, and REACH compliance.
In addition to our standard product range, we also offer customization and development of products with special requirements based on customer needs. Our production processes adhere to ISO9001 and IATF16949 quality management system standards to ensure 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 dedicated to providing high-quality products to our customers.
At Shanghai Wellco International Limited, we offer a wide range of products including:
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.
When you choose Shanghai Wellco International Limited, you can expect:
We offer the following services:
Suppliers with verified business licenses
Audited Supplier 
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