| Customization: | Available |
|---|---|
| Application: | Insulators |
| Color: | Black, Other Colors Can Be Customized |
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The W-DW dual-wall adhesive-lined heat shrinkable tubing is a high-quality product designed for environmental sealing and electrical insulation in the automotive and commercial industries. It is manufactured by Shanghai Wellco International Limited, a trusted name in the industry.
Outer layer: Cross-linked modified polyolefin
Inner layer: Flame retarded modified hot melt adhesive
Shrink ratio: 3:1, 4:1
Continuous use temperature: -40ºC to 125ºC
Shrinkage temperature: 100ºC to 150ºC
The dual-wall adhesive-lined heat shrinkable tubing is specifically designed for wire splices, terminations, and components in the automotive and commercial industries. The outer polyolefin layer offers strain relief and abrasion protection for wire connectors and components. The inner adhesive, with a wide operating temperature range, ensures a strong bond to different types of automotive wires and cables, providing sealing insulation protection.
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Item
|
Test Method
|
Indicator
|
|
Longitudinal length change rate
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UL224
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-10%~0
|
|
Tensile Strength
|
ASTM D2671
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≥10.4MPa
|
|
Breaking Elongation
|
ASTM D2671
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≥200%
|
|
Aging Test Of Hot Air
|
158.0ºC±1.0ºC/168h
|
-
|
|
Tensile Strength After Aging
|
ASTM D2671
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≥7.3MPa
|
|
Elongation At Break After Aging
|
ASTM D2671
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≥100%
|
|
Volume Resistivity
|
ASTM D876
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≥1.0x1013Ω· cm
|
|
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)
|
ASTM D2671
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No breakage
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Solvent Resistance (diesel lubricating oil)
|
-
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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)
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||
|
(max.)ID
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Wall thickness
|
Adhesive thickness
|
|||
|
3:1
|
|||||
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3.2
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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
|
2.00
|
1.10
|
0.45
|
1.22
|
|
9.5
|
9.5
|
3.00
|
1.45
|
0.45
|
1.22
|
|
12.7
|
12.7
|
4.00
|
1.50
|
0.45
|
1.22
|
|
19.1
|
19.1
|
6.00
|
2.00
|
0.65
|
1.22
|
|
25.4
|
25.4
|
8.40
|
2.00
|
0.65
|
1.22
|
|
30
|
30
|
10.0
|
2.20
|
0.75
|
1.22
|
|
40
|
40
|
13.3
|
2.50
|
1.00
|
1.22
|
|
4:1
|
|||||
|
4
|
4
|
1.00
|
1.00
|
0.50
|
1.22
|
|
8
|
8
|
2.00
|
1.10
|
0.50
|
1.22
|
|
12
|
12
|
3.00
|
1.40
|
0.61
|
1.22
|
|
16
|
16
|
4.00
|
1.78
|
0.76
|
1.22
|
|
24
|
24
|
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 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, FEP, PTFE, and more. Our products find 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 also specialize in producing customized products or developing products with special requirements according to customer needs. Our production processes adhere to ISO9001 and IATF16949 quality management system standards, ensuring 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 to guarantee the quality of our products.
When you choose Shanghai Wellco International Limited, you can expect:
We offer a range of services to meet your needs:
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