| 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 
The SDR Diesel Resistant Elastomeric Heat Shrinkable Tube, manufactured by Shanghai Wellco International Limited, is a high-quality product designed to protect cables, wiring harnesses, and connectors in military vehicles and motorsport cable harnesses. This specially formulated tube is made of irradiation cross-linked flexible elastomeric compounds, ensuring excellent resistance to aviation and diesel fuels, hydraulic fluids, lubricating oils, and chemical solvents.
With its superior performance and durability, the SDR Diesel Resistant Elastomeric Heat Shrinkable Tube is the ideal solution for applications that require protection against harsh environments and chemical exposure. Its black color ensures a sleek and professional appearance.
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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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≥11.7MPa
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ASTM D 2671
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≥13 MPa
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Elongation at break
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≥200%
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ASTM D 2671
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≥400%
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Tensile strength after ageing(150ºC,168hrs)
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≥10.3MPa
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ASTM D 2671
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≥12 MPa
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Elongation after ageing (150ºC,168hrs)
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≥200%
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ASTM D 2671
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≥300%
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Heat shock(200ºC,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
(-65ºC,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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No breakdown
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Dielectric strength
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11.9 KV/mm min.
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ASTM D 2671
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≥16KV/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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≥1010cm
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Copper 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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Self-extinguishing
within one minute
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ASTM D 2671
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pass
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Fluids resistance (23° C, 24hrs)
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|||
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Tensile strength
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10.3MPa 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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200% min.
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ASTM D 2671
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≥300%
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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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≥12KV/mm
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Size
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As supplied(mm)
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After recovered (mm)
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Inch
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mm
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ID(Min)
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ID(max.)
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Wall thicknes
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3/32
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Φ2.4
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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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Φ3.2
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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
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4.8
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2.4
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0.84±0.15
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1/4
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Φ6.4
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6.4
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3.2
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0.89±0.15
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3/8
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Φ9.5
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9.5
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4.8
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1.02±0.20
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1/2
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Φ12.7
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12.7
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6.4
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1.22±0.20
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3/4
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Φ19.1
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19.1
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9.5
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1.45±0.28
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1
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Φ25.4
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25.4
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12.7
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1.78±0.28
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1 1/2
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Φ38.1
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38.1
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19.1
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2.41±0.41
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2
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Φ50.8
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50.8
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25.4
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2.79±0.41
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With 18 years of experience, Shanghai Wellco International Limited is a professional team specializing in the research and development, 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 wires and cables.
Our company boasts a strong technical force with 20 years of experience, supported by advanced production equipment. We offer a variety of heat shrink tubes and insulation tubes made from materials such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, FEP, PTFE, and more. These products find extensive applications in electronic communication, automobile, high-speed rail, electric motor, aviation, medical, and other fields, providing insulation, water-proofing, electrostatic shielding, oil resistance, chemical resistance, and high-temperature protection. Our products have successfully obtained UL certification, RoHS compliance, and REACH compliance.
At Shanghai Wellco International Limited, we are capable of producing customized products and developing products with special requirements according to customer needs. Our production processes adhere to the ISO9001 and IATF16949 quality management system standards, ensuring the stability and reliability of our product quality.
Shanghai Wellco International Limited is a professional manufacturer based in Shanghai, China. Since our establishment in 2017, we have been dedicated to producing and selling high-quality heat shrink tubes, heat shrink mould parts, marking sleeves, and cold shrink tubes.
We serve customers worldwide, with a focus on North America (20.00%), South Asia (20.00%), Southeast Asia (15.00%), Western Europe (15.00%), South America (5.00%), Eastern Europe (5.00%), the Middle East (5.00%), Northern Europe (5.00%), Eastern Asia (3.00%), Domestic Market (3.00%), Southern Europe (2.00%), Africa (00.00%), and Central America (00.00%).
We prioritize quality and ensure your satisfaction through rigorous processes:
With over 20 years of experience in insulation, our founder brings extensive expertise to our products. As a professional R&D and production company specializing in heat shrink tubes and other radiation crosslinking insulation materials, we guarantee exceptional quality and reliability.
We offer a range of services to meet your needs:
Suppliers with verified business licenses
Audited Supplier 
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