| 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 
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% |
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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
|
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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
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6.5+0.2/-0.1
|
0.25±0.05
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≤3.00
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0.55±0.10
|
|
Ф6.5
|
6.9+0.2/-0.1
|
0.25±0.05
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≤3.25
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0.55±0.10
|
|
Ф7.0
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7.5+0.2/-0.1
|
0.25±0.05
|
≤3.50
|
0.55±0.10
|
|
Ф8.0
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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
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0.32±0.08
|
≤10.0
|
0.68±0.10
|
|
Ф22
|
22.6+0.7/-0.2
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0.35±0.08
|
≤11.0
|
0.72±0.12
|
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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
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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
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1.00±0.15
|
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Ф45
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46.0±0.5
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0.50±0.12
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≤22.5
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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
|
|
Ф55
|
55.5±1.0
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0.55±0.15
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≤27.5
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1.10±0.15
|
|
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
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0.60±0.15
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≤35.0
|
1.25±0.20
|
|
Ф80
|
81.0±1.0
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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
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Ф100
|
101.0±1.0
|
0.60±0.15
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≤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 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 passed UL certification, RoHS, and REACH.
We are also capable of producing customized products or developing products with special requirements based on customer needs. Our production adheres 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 based in Shanghai, China. Since 2017, we have been specializing in the production and sales of special heat shrink tubes and other radiation crosslinking insulation materials. With over 20 years of experience in insulation, our founder has ensured that our products meet the highest quality standards.
We prioritize quality and ensure that every product meets our stringent standards. Before mass production, we always provide a pre-production sample for approval. Additionally, a final inspection is conducted before shipment to guarantee the quality of our products.
At Shanghai Wellco International Limited, we offer a wide range of products including heat shrink tubes, heat shrink mould parts, marking sleeves, and cold shrink tubes. Our products are designed to provide efficient insulation and meet various industry requirements.
When it comes to purchasing insulation materials, there are several reasons why you should choose us over other suppliers. Our company has a strong focus on research and development, ensuring that our products are innovative and of the highest quality. With our extensive experience in the industry, we understand the specific needs of our customers and strive to provide excellent service and support.
We offer a range of services to cater to our customers' needs. We accept various delivery terms, including FOB, CFR, CIF, EXW, CIP, FCA, DDP, DDU, and express delivery. Our accepted payment currencies are USD, EUR, and CNY, and we accept payment types such as T/T, L/C, MoneyGram, PayPal, and Western Union. We are fluent in English, Chinese, and Japanese, ensuring effective communication with our customers.
Choose Shanghai Wellco International Limited for reliable and high-quality insulation materials. Contact us today to discuss your requirements.
Suppliers with verified business licenses
Audited Supplier 
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