| Type: | Insulation Sleeve & Tube |
|---|---|
| Chemistry: | Organic Insulation |
| Thermal Rating: | 200 200 |
| 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 
|
Property
|
Requirement
|
Test method
|
Typical data
|
|
Longitudinal shrinkage
|
≤10%
|
ASTM D 2671
|
≤5%
|
|
Tensile strength
|
≥8.2MPa
|
ASTM D 2671
|
≥12 MPa
|
|
Elongation at break
|
≥250%
|
ASTM D 2671
|
≥400%
|
|
Elongation after ageing
(250ºC,168hrs)
|
≥200%
|
ASTM D 2671
|
≥300%
|
|
Heat shock(300ºC,4hrs)
|
No crack
|
ASTM D 2671
|
No crack
|
|
Low-temperature
flexibility(-55ºC,4hrs)
|
No crack
|
ASTM D 2671
|
No crack
|
|
Dielectric voltage
withstand
|
2500V,60sec, no
breakdown
|
ASTM D 2671
|
pass
|
|
Dielectric strength
|
7.9 KV/mm min.
|
ASTM D 2671
|
≥12 KV/mm
|
|
Volume resistivity
|
109Ω·cm min.
|
ASTM D 876
|
≥109Ω·cm
|
|
Corrosion
|
No corrosion
|
ASTM D 2671
|
pass
|
|
Flammability
|
Self-extinguishing within 15s
|
ASTM D 2671
|
pass
|
|
Fluids resistance (23ºC ,24hrs)
|
|||
|
Tensile strength
|
8.2MPa min.
|
ASTM D 2671
|
≥12 MPa
|
|
Elongation at break
|
250% min.
|
ASTM D 2671
|
≥400%
|
|
Size
|
As supplied(mm)
|
After recovered (mm)
|
|
|
Inch
|
mm
|
diameter(Min)
|
diameter(max.)
|
|
3/32
|
Φ2.4
|
2.4
|
1.2
|
|
1/8
|
Φ3.2
|
3.2
|
1.6
|
|
3/16
|
Φ4.8
|
4.8
|
2.4
|
|
1/4
|
Φ6.4
|
6.4
|
3.2
|
|
3/8
|
Φ9.5
|
9.5
|
4.8
|
|
1/2
|
Φ12.7
|
12.7
|
6.4
|
|
3/4
|
Φ19.1
|
19.1
|
9.5
|
|
1
|
Φ25.4
|
25.4
|
12.7
|
|
1 1/2
|
Φ38.1
|
38.1
|
19.1
|
|
2
|
Φ50.8
|
50.8
|
25.4
|
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, 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 standards.
In addition to our standard product range, 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, 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 serving customers 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:
There are several reasons why you should choose us over other suppliers:
We provide the following services:
Suppliers with verified business licenses
Audited Supplier 
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