| Application: | Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Motor, Insulating Varnish, Switch Baseplate |
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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 Outer layer: Cross-linked modified polyolefin
Inner layer: Flame retarded modified hot melt adhesive
3:1 4:1
-40ºC to 125ºC
100ºC to 150ºC
The W-DW dual-wall adhesive-lined heat shrinkable tubing is made by co-extrusion of an excellent semi-rigid polyolefin compound and special hot-melt adhesive. It is specially designed for environmental sealing and electrical insulation of wire splices, terminations, and components in the automotive and commercial industries. The outer polyolefin provides strain relief and abrasion protection for wire connectors and components. The inner adhesive, with a wide range of operating temperatures, bonds to different kinds of automotive wires and cables to provide sealing insulation protection.
For more information, please contact Shanghai Wellco International Limited.
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Item
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Test Method
|
Indicator
|
|
Longitudinal length change rate
|
UL224
|
-10%~0
|
|
Tensile Strength
|
ASTM D2671
|
≥10.4MPa
|
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Breaking Elongation
|
ASTM D2671
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≥200%
|
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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
|
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Elongation At Break After Aging
|
ASTM D2671
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≥100%
|
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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)
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||
|
(max.)ID
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Wall thickness
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Adhesive thickness
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|||
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3:1
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|||||
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3.2
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3.2
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1.00
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0.85
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0.35
|
1.22
|
|
4.7
|
4.7
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1.50
|
1.05
|
0.45
|
1.22
|
|
6.4
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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
|
6.00
|
2.00
|
0.65
|
1.22
|
|
25.4
|
25.4
|
8.40
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2.00
|
0.65
|
1.22
|
|
30
|
30
|
10.0
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2.20
|
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
|
|
4:1
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|||||
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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
|
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8
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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
|
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
|
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 based in Shanghai, China and have been in operation since 2017. Our office consists of a dedicated team of 5-10 people.
We prioritize quality and ensure it through various measures:
At Shanghai Wellco International Limited, we offer a range of high-quality products including:
There are several reasons why you should choose us over other suppliers:
We offer a range of services to meet your needs:
Suppliers with verified business licenses
Audited Supplier 
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