| Certification: | RoHS, ISO |
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| Color: | Black |
| IP Rating: | IP68 |
| 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
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Requirement
|
Test method
|
Typical data
|
|
Longitudinal shrinkage
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≤10%
|
ASTM D 2671
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≤5%
|
|
Tensile strength
|
≥11.7MPa
|
ASTM D 2671
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≥13 MPa
|
|
Elongation at break
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≥200%
|
ASTM D 2671
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≥400%
|
|
Tensile strength after ageing(150ºC,168hrs)
|
≥10.3MPa
|
ASTM D 2671
|
≥12 MPa
|
|
Elongation after ageing (150ºC,168hrs)
|
≥200%
|
ASTM D 2671
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≥300%
|
|
Heat shock(200ºC,4hrs)
|
No crack
|
ASTM D 2671
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No crack
|
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Low-temperature flexibility
(-65ºC,4hrs)
|
No crack
|
ASTM D 2671
|
No crack
|
|
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
|
|
Volume resistivity
|
109Ω·cm min.
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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
|
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
|
|
Elongation at break
|
200% min.
|
ASTM D 2671
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≥300%
|
|
Dielectric strength
|
7.9 KV/mm min.
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ASTM D 2671
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≥12KV/mm
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|
Size
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As supplied(mm)
|
After recovered (mm)
|
||
|
Inch
|
mm
|
ID(Min)
|
ID(max.)
|
Wall thicknes
|
|
3/32
|
Φ2.4
|
2.4
|
1.2
|
0.51±0.08
|
|
1/8
|
Φ3.2
|
3.2
|
1.6
|
0.76±0.15
|
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3/16
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Φ4.8
|
4.8
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2.4
|
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 a wide range of products and solutions for insulation, connection, waterproofing, high temperature resistance, chemical resistance, EMI protection, and mechanical protection for wire and cable applications.
With a strong technical force and 20 years of experience, we have advanced production equipment and can supply various materials such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, FEP, PTFE, etc. Our heat shrink tubes and insulation tubes are widely used in electronic communication, automobile, high-speed rail, electric motor, aviation, medical, and other fields. They offer insulation, water-proofing, electrostatic shielding, oil-resistance, chemical resistance, and high-temperature resistance, among other protective features. Our products have passed UL certification, RoHS, and REACH standards.
We also specialize in producing customized products and developing products with special requirements according to customer needs. Our production processes adhere to ISO9001 and IATF16949 quality management system standards to ensure 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, our company is based in Shanghai, China and was established in 2017. We have a team of 5-10 dedicated professionals working in our office.
We prioritize quality assurance and ensure that our products meet the highest standards. We conduct a pre-production sample before mass production and perform a final inspection before shipment to guarantee the quality of our products.
At Shanghai Wellco International Limited, we offer a range of products including heat shrink tubes, heat shrink mould parts, marking sleeves, and cold shrink tubes.
When choosing a supplier, our experience and expertise set us apart. With over 20 years of experience in insulation, our founder has the knowledge and skills to provide top-quality products. We are dedicated to research and development, production, and sales of special heat shrink tubes and radiation crosslinking insulation materials.
We provide a range of services to ensure a seamless buying experience. We accept various delivery terms including FOB, CFR, CIF, EXW, CIP, FCA, DDP, DDU, and express delivery. Our accepted payment currencies include USD, EUR, and CNY, and we accept payment methods such as T/T, L/C, MoneyGram, PayPal, and Western Union. We are fluent in English, Chinese, and Japanese.
Suppliers with verified business licenses
Audited Supplier 
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