| Application: | Insulators |
|---|---|
| Type: | Insulation Sleeve & Tube |
| 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: Outer layer: Cross-linked modified polyolefin
Inner layer: Flame retarded modified hot melt adhesive
Shrink Ratio: 3:1, 4:1
Continuous Use Temperature: -40ºC~125ºC
Shrinkage Temperature: 100ºC~150ºC
Characteristics:
Application: The W-DW dual-wall adhesive-lined heat shrinkable tubing, manufactured by Shanghai Wellco International Limited, is specifically designed for environmental sealing and electrical insulation in the automotive and commercial industries. The outer polyolefin layer provides strain relief and abrasion protection for wire connectors and components, while the inner adhesive, with a wide range of operating temperatures, bonds to different types of automotive wires and cables, providing sealing and insulation protection for wire splices, terminations, and components.
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Item
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Test Method
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Indicator
|
|
Longitudinal length change rate
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UL224
|
-10%~0
|
|
Tensile Strength
|
ASTM D2671
|
≥10.4MPa
|
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Breaking Elongation
|
ASTM D2671
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≥200%
|
|
Aging Test Of Hot Air
|
158.0ºC±1.0ºC/168h
|
-
|
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Tensile Strength After Aging
|
ASTM D2671
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≥7.3MPa
|
|
Elongation At Break After Aging
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ASTM D2671
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≥100%
|
|
Volume Resistivity
|
ASTM D876
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≥1.0x1013Ω· cm
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Withstanding Voltage
|
ASTM D2671
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2500V,60s,Without breakdown
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Water Absorption
|
ASTM D570
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≤0.5%
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Thermal shock (applicable to outer layer only)
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-
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225ºC,4h,No breakage, no dripping
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Low-temperature resistance (applicable to outer layer only)
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ASTM D2671
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No breakage
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Solvent Resistance (diesel lubricating oil)
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-
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23ºC,24h,Excellent
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Size
(mm)
|
As supply
(min.)ID (mm)
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After shrinked
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Package
(m/pc)
|
||
|
(max.)ID
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Wall thickness
|
Adhesive thickness
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|||
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3:1
|
|||||
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3.2
|
3.2
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1.00
|
0.85
|
0.35
|
1.22
|
|
4.7
|
4.7
|
1.50
|
1.05
|
0.45
|
1.22
|
|
6.4
|
6.4
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2.00
|
1.10
|
0.45
|
1.22
|
|
9.5
|
9.5
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3.00
|
1.45
|
0.45
|
1.22
|
|
12.7
|
12.7
|
4.00
|
1.50
|
0.45
|
1.22
|
|
19.1
|
19.1
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6.00
|
2.00
|
0.65
|
1.22
|
|
25.4
|
25.4
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8.40
|
2.00
|
0.65
|
1.22
|
|
30
|
30
|
10.0
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2.20
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0.75
|
1.22
|
|
40
|
40
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13.3
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2.50
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1.00
|
1.22
|
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4:1
|
|||||
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4
|
4
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1.00
|
1.00
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0.50
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1.22
|
|
8
|
8
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2.00
|
1.10
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0.50
|
1.22
|
|
12
|
12
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3.00
|
1.40
|
0.61
|
1.22
|
|
16
|
16
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4.00
|
1.78
|
0.76
|
1.22
|
|
24
|
24
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6.00
|
2.25
|
0.76
|
1.22
|
|
32
|
32
|
8.00
|
2.54
|
1.02
|
1.22
|
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 applications, 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, providing insulation, water-proofing, electrostatic shielding, oil resistance, chemical resistance, and high-temperature protection.
All our products have passed UL certification, RoHS, and REACH standards, ensuring their quality and compliance with industry regulations.
We also offer customization options and can develop products with special requirements based on customer needs. Our production processes adhere to ISO9001 and IATF16949 quality management system standards, guaranteeing the stability and reliability of our product quality.
Shanghai Wellco International Limited is a professional manufacturer based in Shanghai, China. Since 2017, we have been dedicated to providing high-quality heat shrink tubes, heat shrink mould parts, marking sleeves, and cold shrink tubes to customers worldwide.
With a team of 5-10 people, we strive to deliver exceptional products and services to our valued clients.
We prioritize quality in every step of our production process:
At Shanghai Wellco International Limited, we offer a wide range of products:
Here's why you should choose us over other suppliers:
We offer the following services:
Suppliers with verified business licenses
Audited Supplier 
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