| Application: | Insulators |
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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 
The PFA Heat Shrink Tube by Shanghai Wellco International Limited is designed to meet the high-temperature performance, chemical resistance, insulation, and mechanical protection needs of various industries. Made of PFA, this heat shrinkable tubing offers exceptional clarity and is perfect for use in electronic, aerospace, military, and communication fields.
Choose the PFA Heat Shrink Tube for reliable and durable performance in demanding applications. Trust Shanghai Wellco International Limited for high-quality products that meet your specific needs.
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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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≤5%
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ASTM D 2671
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≤3%
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Tensile strength
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≥17.3 MPa
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ASTM D 2671
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≥ 25 MPa
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Elongation at break
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≥200%
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ASTM D 2671
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≥300%
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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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Volume resistivity
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≥1015Ω·cm
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ASTM D 876
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≥1016Ω·cm
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Corrosion
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No corrosion
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ASTM D 2671
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No corrosion
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Flammability
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VW-1
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UL224
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pass
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Dielectric constant
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2.1
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Friction coefficient
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0.1-0.2
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Size
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ID as supplied
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ID After shrinked
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Wall after shrinked
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1.3:1
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|||
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φ0.8
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0.8
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≤0..69
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0.20±0.05
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φ1.0
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1.0
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≤0.8
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0.20±0.05
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φ1.5
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1.5
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≤1.0
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0.20±0.05
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Φ1.9
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1.9
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≤1.20
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0.20±0.05
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φ2.3
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2.3
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≤1.60
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0.23±0.05
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Φ2.9
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2.9
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≤1.80
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0.23±0.05
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Φ3.6
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3.6
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≤2.3
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0.23±0.05
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φ4.0
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4.0
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≤2.9
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0.25±0.07
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φ4.6
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4.6
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≤3.2
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0.25±0.07
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φ5.0
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5.0
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≤3.6
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0.25±0.07
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Φ5.7
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5.7
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≤4.0
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0.28±0.10
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Φ6.4
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6.4
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≤4.6
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0.28±0.10
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φ7.4
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7.4
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≤5.0
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0.28±0.10
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Φ7.9
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7.9
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≤5.8
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0.28±0.10
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Φ9.2
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9.2
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≤6.4
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0.30±0.10
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Φ12.7
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12.7
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≤7.9
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0.38±0.10
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Φ14.7
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14.7
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≤9.7
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0.50±0.10
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Φ16.9
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16.9
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≤11.4
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0.50±0.10
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Φ21.1
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21.1
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≤13.0
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0.64±0.10
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Φ29.7
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29.7
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≤16.1
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0.90±0.10
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Φ33.8
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33.8
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≤22.7
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0.90±0.10
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Φ38.1
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38.1
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≤26.0
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0.90±0.10
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1.6:1
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|||
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Φ2.4
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2.4
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≤1.5
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0.20±0.08
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Φ3.2
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3.2
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≤2.0
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0.25±0.08
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Φ4.8
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4.8
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≤3.0
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0.25±0.08
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Φ6.4
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6.4
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≤4.0
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0.25±0.08
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Φ9.6
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9.6
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≤6.0
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0.31±0.08
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Φ12.7
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12.7
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≤7.9
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0.38±0.10
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Φ19.1
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19.1
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≤11.9
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0.51±0.10
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Φ25.4
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25.4
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≤15.9
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0.64±0.13
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Φ38.1
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38.1
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≤23.8
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0.76±0.13
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Other sizes are available upon request
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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 resistance, 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, providing insulation, water-proofing, electrostatic shielding, oil resistance, chemical resistance, and high-temperature protection.
All our products have passed UL certification, RoHS, and REACH compliance, ensuring their quality and safety.
We also specialize in producing customized products and developing products with special requirements based on customer needs. Our production processes adhere to ISO9001 and IATF16949 quality management system standards, guaranteeing 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 offer the following services:
Suppliers with verified business licenses
Audited Supplier 
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