| 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 
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
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(mm) As Supplied min.)
Inside diameter
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(mm) After recovered
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||
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inch
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mm
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(max.)Inside diameter
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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
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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
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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
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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
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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
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(mm)As supplied
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(mm) After recovered
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||
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inch
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mm
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(min.) Inside diameter
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(max.)Inside diameter
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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
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1/2
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Ф12.7
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12.7
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6.4
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0.48±0.10
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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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0.69±0.10
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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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0.79±0.10
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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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0.94±0.10
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2
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Ф50.8
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50.8
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25.4
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1.02±0.10
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With 18 years of experience in R&D, production, and sales of special heat shrink tubes and other radiation crosslinking materials, we are a professional team dedicated to providing top-notch 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 specialize in providing heat shrink tubes and insulation tubes made from various materials such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, FEP, PTFE, and more. These products find wide applications in electronic communication, automobile, high-speed rail, electric motor, aviation, medical, and other industries. They offer reliable insulation, water-proofing, electrostatic shielding, oil resistance, chemical resistance, and high-temperature protection. Rest assured, our products have passed UL certification, RoHS, and REACH compliance.
At Shanghai Wellco International Limited, we understand that every customer has unique requirements. That's why we offer customized products and develop solutions tailored to your specific needs. Our production processes adhere to ISO9001 and IATF16949 quality management system standards, ensuring the stability and reliability of our product quality.
Choose Shanghai Wellco International Limited for all your heat shrink tube and insulation tube needs. Experience the difference that 18 years of expertise and dedication can make. Contact us today!
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Suppliers with verified business licenses
Audited Supplier 
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