| Certification: | RoHS, ISO, Reach |
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| Color: | Black, Blue, Yellow, Red |
| 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 
Materials: Fluoroelastomer
Operating temperature range: -55ºC~200ºC
Contraction temperature: above 175ºC
Contraction ratio: 2:1
Features: High-temperature resistance, flame retarding, flexibility, oil resistance, acid and alkali resistance
Applications: Suitable for protection of electronic devices in an environment with high temperature and oil and insulation protection of resistors, capacitors, and thermocouples
Color: Black, Red, Yellow, Blue
UL Approved
Company name: Shanghai Wellco International Limited
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Property
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Requirement
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Test method
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Typical data
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Longitudinal shrinkage
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≤10%
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ASTM D 2671
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≤5%
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Tensile strength
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≥8.2MPa
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ASTM D 2671
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≥12 MPa
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Elongation at break
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≥250%
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ASTM D 2671
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≥400%
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Elongation after ageing
(250ºC,168hrs)
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≥200%
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ASTM D 2671
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≥300%
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Heat shock(300ºC,4hrs)
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No crack
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ASTM D 2671
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No crack
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Low-temperature
flexibility(-55ºC,4hrs)
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No crack
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ASTM D 2671
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No crack
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Dielectric voltage
withstand
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2500V,60sec, no
breakdown
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ASTM D 2671
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pass
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Dielectric strength
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7.9 KV/mm min.
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ASTM D 2671
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≥12 KV/mm
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Volume resistivity
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109Ω·cm min.
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ASTM D 876
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≥109Ω·cm
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Corrosion
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No corrosion
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ASTM D 2671
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pass
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Flammability
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Self-extinguishing
within 15s
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ASTM D 2671
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pass
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Fluids resistance (23ºC ,24hrs)
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|||
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Tensile strength
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8.2MPa min.
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ASTM D 2671
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≥12 MPa
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Elongation at break
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250% min.
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ASTM D 2671
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≥400%
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Normal wall Type
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||||
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Size
|
(mm) As Supplied min.)
Inside diameter
|
(mm) After recovered
|
||
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inch
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mm
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(max.)Inside diameter
|
Wall thickness
|
|
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3/32
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Ф2.4
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2.4
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1.2
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0.51±0.08
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1/8
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Ф3.2
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3.2
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1.6
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0.76±0.13
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3/16
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Ф4.8
|
4.8
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2.4
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0.89±0.18
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1/4
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Ф6.4
|
6.4
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3.2
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0.89±0.18
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3/8
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Ф9.5
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9.5
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4.8
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0.89±0.18
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1/2
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Ф12.7
|
12.7
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6.4
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0.89±0.18
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3/4
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Ф19.1
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19.1
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9.5
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1.07±0.21
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|
1
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Ф25.4
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25.4
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12.7
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1.25±0.30
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1 1/2
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Ф38.1
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38.1
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19.1
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1.40±0.38
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2
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Ф50.8
|
50.8
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25.4
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1.65±0.43
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|
thin wall Type
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||||
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size
|
(mm)As supplied
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(mm) After recovered
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||
|
inch
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mm
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(min.) Inside diameter
|
(max.)Inside diameter
|
Wall thickness
|
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3/32
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Ф2.4
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2.4
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1.2
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0.30±0.08
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1/8
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Ф3.2
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3.2
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1.6
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0.33±0.08
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3/16
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Ф4.8
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4.8
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2.4
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0.36±0.10
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1/4
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Ф6.4
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6.4
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3.2
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0.41±0.10
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3/8
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Ф9.5
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9.5
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4.8
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0.48±0.10
|
|
1/2
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Ф12.7
|
12.7
|
6.4
|
0.48±0.10
|
|
3/4
|
Ф19.1
|
19.1
|
9.5
|
0.69±0.10
|
|
1
|
Ф25.4
|
25.4
|
12.7
|
0.79±0.10
|
|
1 1/2
|
Ф38.1
|
38.1
|
19.1
|
0.94±0.10
|
|
2
|
Ф50.8
|
50.8
|
25.4
|
1.02±0.10
|
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. With a focus on providing insulation, connection, waterproofing, high temperature resistance, chemical resistance, EMI protection, and mechanical protection for wire and cable, we are dedicated to offering a wide range of products and solutions.
Our company boasts a strong technical force with 20 years of experience and advanced production equipment. We specialize in supplying heat shrink tubes and insulation tubes made from various materials such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, 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, ensuring their quality and safety.
At Shanghai Wellco International Limited, we are also capable of producing customized products and developing solutions to meet specific customer requirements. Our production strictly adheres to ISO9001 and IATF16949 quality management system standards, guaranteeing the stability and reliability of our product quality.
Shanghai Wellco International Limited is a China-based company established in 2017. We specialize in the production and sales of special heat shrink tubes, heat shrink mould parts, marking sleeves, and cold shrink tubes. With over 20 years of experience in insulation, our founder leads a team of 5-10 professionals dedicated to delivering high-quality products.
We prioritize quality and ensure it through multiple measures. Every product undergoes a pre-production sample before mass production, followed by final inspection before shipment. This ensures that you receive only the best products.
At Shanghai Wellco International Limited, we offer a wide range of products, including heat shrink tubes, heat shrink mould parts, marking sleeves, and cold shrink tubes. Our products are designed to provide excellent insulation and radiation crosslinking properties.
There are several reasons why you should choose us as your supplier. Firstly, we are a professional manufacturer with expertise in heat shrink tubes and other insulation materials. Our founder has over 20 years of experience in the industry, ensuring that you receive products of the highest quality. Additionally, we offer a diverse range of delivery terms and payment options, making it convenient for you to do business with us. We are fluent in English, Chinese, and Japanese, ensuring effective communication throughout the process.
We provide a wide range of services to meet your needs. We accept various delivery terms, including FOB, CFR, CIF, EXW, CIP, FCA, DDP, DDU, and express delivery. You can make payments in USD, EUR, or CNY through options such as T/T, L/C, MoneyGram, PayPal, or Western Union. Our multilingual team is proficient in English, Chinese, and Japanese, allowing us to cater to a diverse customer base.
Suppliers with verified business licenses
Audited Supplier 
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