| 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 
Our W-SPTFE 1.7:1 4:1 PTFE Heat Shrinkable Tubing is the ideal solution for insulation and mechanical protection in harsh chemical and thermal environments. Made from PTFE, it offers exceptional high-temperature performance, chemical resistance, insulation, and mechanical properties.
With a shrink ratio of 1.7:1 or 4:1, this tubing is widely used in various industries including electronics, aerospace, military, and communication. It is perfect for covering hydraulic hoses and couplings, providing reliable protection against contamination and corrosion.
One of the standout features of our PTFE heat shrinkable tubing is its high mechanical strength and extremely low coefficient of friction. This makes it an excellent choice for reducing damage to bearing shafts and similar applications.
Choose our W-SPTFE 1.7:1 4:1 PTFE Heat Shrinkable Tubing for reliable insulation and protection in the most demanding environments. Trust Shanghai Wellco International Limited for top-quality products.
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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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≥17.3 MPa
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ASTM D 2671
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≥ 22MPa
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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 min.
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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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|
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2.1
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Friction coefficient
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0.1
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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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1.7:1
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|||
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φ0.5
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0.7±0.2
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≤0.30
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0.15±0.05
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φ1.0
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1.0±0.2
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≤0.60
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0.15±0.05
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φ1.5
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1.5±0.2
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≤0.90
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0.15±0.05
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φ2.0
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2.0±0.2
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≤1.30
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0.15±0.05
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φ2.5
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2.5±0.2
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≤1.50
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0.15±0.05
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φ3.0
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3.0±0.2
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≤1.80
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0.20±0.05
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φ3.5
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3.5±0.2
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≤2.0
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0.20±0.05
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φ3.8
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3.8±0.2
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≤2.2
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0.20±0.05
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φ4.0
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4.0±0.3
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≤2.5
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0.20±0.05
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φ4.5
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4.5±0.3
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≤2.7
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0.20±0.05
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φ5.0
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5.0±0.3
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≤3.0
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0.20±0.05
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φ6.0
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6.0±0.3
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≤3.6
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0.25±0.05
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φ6.5
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6.5±0.3
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≤4.0
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0.25±0.05
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φ7.0
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7.0±0.3
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≤4.2
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0.25±0.05
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φ8.0
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8.0±0.3
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≤4.8
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0.25±0.05
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φ9.0
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9.0±0.3
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≤5.3
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0.25±0.05
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φ10.0
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10.0±0.2
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≤5.8
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0.25±0.05
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φ11.0
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11±0.2
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≤6.8
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0.25±0.05
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φ12
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12±0.2
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≤7.1
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0.35±0.05
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φ14
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14.0±0.3
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≤8.2
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0.35±0.05
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φ15
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15±0.3
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≤15
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0.35±0.05
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φ16
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16±0.3
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≤9.4
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0.35±0.05
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φ17
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17±0.3
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≤10
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0.35±0.05
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φ18
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18±0.3
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≤10.5
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0.35±0.05
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φ19
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19±0.3
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≤11.2
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0.35±0.05
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φ20
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20±0.3
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≤11.8
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0.35±0.05
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φ21
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21±0.3
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≤12.3
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0.35±0.05
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φ22
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22±0.3
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≤12.6
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0.35±0.05
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4:1
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|||
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φ2.5
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2.5±0.2
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≤0.7
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0.15±0.1
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φ3.2
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3.0±0.2
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≤0.8
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0.15±0.1
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φ4.0
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4.0±0.2
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≤1
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0.15±0.1
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φ5.0
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5.0±0.2
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≤1.2
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0.15±0.1
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φ6.0
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6.0±0.2
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≤1.5
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0.15±0.1
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φ7.0
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7.0±0.2
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≤1.8
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0.2±0.1
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φ8.0
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8.0±0.3
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≤2
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0.2±0.1
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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. Our focus is on providing various products and solutions for insulation, connection, waterproofing, high temperature, chemical resistance, EMI, and mechanical protection for wires and cables.
With a strong technical force and advanced production equipment, we specialize in supplying heat shrink tubes and insulation tubes made from materials such as modified PE, PVDF, FEP, EPDM, Silicone, FKM, FEP, PTFE, and more. Our products find wide applications in electronic communication, automobile, high-speed rail, electric motor, aviation, medical, and other industries. They offer insulation, water-proofing, electrostatic shielding, oil resistance, chemical resistance, and high-temperature protection. Furthermore, our products have obtained UL certification, RoHS compliance, and REACH compliance.
We are also capable of producing customized products or developing products with special requirements as per customer needs. Our production processes adhere to the ISO9001 and IATF16949 quality management system standards to ensure the stability and reliability of product quality.
Suppliers with verified business licenses
Audited Supplier 
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