| Certification: | RoHS |
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| Color: | Black |
| Usage: | Optical Cable |
| 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
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Test method
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Typical data
|
|
Longitudinal shrinkage
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≤10%
|
ASTM D 2671
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≤5%
|
|
Tensile strength
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≥11.7MPa
|
ASTM D 2671
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≥13 MPa
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Elongation at break
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≥200%
|
ASTM D 2671
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≥400%
|
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Tensile strength after ageing(150ºC,168hrs)
|
≥10.3MPa
|
ASTM D 2671
|
≥12 MPa
|
|
Elongation after ageing (150ºC,168hrs)
|
≥200%
|
ASTM D 2671
|
≥300%
|
|
Heat shock(200ºC,4hrs)
|
No crack
|
ASTM D 2671
|
No crack
|
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Low-temperature flexibility
(-65ºC,4hrs)
|
No crack
|
ASTM D 2671
|
No crack
|
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Dielectric voltage withstand
|
2500V,60sec, no
breakdown
|
ASTM D 2671
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No breakdown
|
|
Dielectric strength
|
11.9 KV/mm min.
|
ASTM D 2671
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≥16KV/mm
|
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Volume resistivity
|
109Ω·cm min.
|
ASTM D 876
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≥1010cm
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Copper corrosion
|
No corrosion
|
ASTM D 2671
|
No corrosion
|
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Flammability
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Self-extinguishing
within one minute
|
ASTM D 2671
|
pass
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Fluids resistance (23° C, 24hrs)
|
|||
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Tensile strength
|
10.3MPa min.
|
ASTM D 2671
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≥12 MPa
|
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Elongation at break
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200% min.
|
ASTM D 2671
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≥300%
|
|
Dielectric strength
|
7.9 KV/mm min.
|
ASTM D 2671
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≥12KV/mm
|
|
Size
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As supplied(mm)
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After recovered (mm)
|
||
|
Inch
|
mm
|
ID(Min)
|
ID(max.)
|
Wall thicknes
|
|
3/32
|
Φ2.4
|
2.4
|
1.2
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0.51±0.08
|
|
1/8
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Φ3.2
|
3.2
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1.6
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0.76±0.15
|
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3/16
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Φ4.8
|
4.8
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2.4
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0.84±0.15
|
|
1/4
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Φ6.4
|
6.4
|
3.2
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0.89±0.15
|
|
3/8
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Φ9.5
|
9.5
|
4.8
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1.02±0.20
|
|
1/2
|
Φ12.7
|
12.7
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6.4
|
1.22±0.20
|
|
3/4
|
Φ19.1
|
19.1
|
9.5
|
1.45±0.28
|
|
1
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Φ25.4
|
25.4
|
12.7
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1.78±0.28
|
|
1 1/2
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Φ38.1
|
38.1
|
19.1
|
2.41±0.41
|
|
2
|
Φ50.8
|
50.8
|
25.4
|
2.79±0.41
|
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. Our focus is on providing various products and solutions for insulation, connection, waterproofing, high temperature resistance, chemical resistance, EMI protection, and mechanical protection for wires and cables.
We have a strong technical force with 20 years of experience and advanced production equipment. We specialize in supplying heat shrink tubes and insulation tubes made of materials such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, FEP, and PTFE. Our products are widely used 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, we offer customized products and can develop products with special requirements according to customer needs. Our production adheres to the ISO9001 and IATF16949 quality management system standards to ensure the stability and reliability of product quality.
Shanghai Wellco International Limited is a leading manufacturer and supplier of high-quality heat shrink tubes, heat shrink mould parts, marking sleeves, and cold shrink tubes. Based in Shanghai, China, our company was established in 2017. We have a dedicated team of 5-10 professionals working diligently to provide excellent products and services to our customers.
We prioritize the quality of our products. To ensure superior quality, we follow strict procedures, including conducting a pre-production sample before mass production and a final inspection before shipment. This way, we can guarantee that our customers receive only the best products.
At Shanghai Wellco International Limited, we offer a wide range of products to meet various insulation needs. Our product portfolio includes heat shrink tubes, heat shrink mould parts, marking sleeves, and cold shrink tubes. These products are designed to provide efficient and reliable insulation solutions.
There are several reasons why you should choose Shanghai Wellco International Limited as your preferred supplier. Firstly, we are experts in the field of insulation, with our founder having over 20 years of experience. This ensures that our products are of the highest quality and meet industry standards.
Secondly, we are committed to providing exceptional customer service. We offer various delivery terms, including FOB, CFR, CIF, EXW, CIP, FCA, DDP, DDU, and Express Delivery. We also accept multiple payment currencies, such as USD, EUR, and CNY, and various payment methods, including T/T, L/C, MoneyGram, PayPal, and Western Union.
Lastly, our team can communicate effectively in English, Chinese, and Japanese, making it easier for us to cater to a diverse customer base.
If you have any inquiries or would like to learn more about our products and services, please feel free to reach out to us. We look forward to serving you.
Company Name: Shanghai Wellco International Limited
Suppliers with verified business licenses
Audited Supplier 
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