Suzhou Volsun Electronics Technology Co., Ltd.
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TZRS-PTFE
VOLSUN
Double-layer PTFE-FEP Heat Shrink Tube Polytetrafluor Ethylene is a high-performance, dual-layered heat shrinkable tube that combines the exceptional properties of Polytetrafluoroethylene (PTFE) and Polyperfluoroethylene (FEP). The PTFE material, known for its outstanding electrical insulation properties, and FEP, recognized for its superior chemical resistance and high-temperature tolerance, come together to create a product that offers unparalleled performance in extreme conditions.
This double-layer heat shrink tube provides superior electrical insulation, low thermal conductivity, and excellent flexibility, making it ideal for use in applications requiring both high-temperature resistance and robust sealing properties. It’s particularly suited for industries such as electronics, automotive, and telecommunications, where moisture, high heat, and chemical exposure are common.
The PTFE-FEP heat shrink tube is capable of withstanding high temperatures, making it suitable for various environments, including areas where conventional materials might degrade. It also exhibits excellent waterproof and seepage gas resistance, offering protection against moisture and other environmental factors. This dual-layered design ensures that cables, wires, and other sensitive components remain well-insulated and protected.
Technical index of polytetrafluoroethylene (PTFE) outer layer
Performance project | representative value | test method |
Melting point | 327℃ | / |
Use temperature | -65-260℃ | / |
Density | 2.15g/cm3 | ASTM D792 |
Tensile strength | 24MPa | ASTM D638 |
Elongation at break | 300% | ASTM D638 |
Fire resistance | VW-1 | UL-224 |
Dielectric constant | 2.1 | ASTM D150 |
Volume resistivity | >1015Ω·cm | ASTM D257 |
Technical index of the inner layer of polyperfluoroethypropene (FEP)
Performance project | representative value | test method |
Melting point | 260-270℃ | / |
Use temperature | -65-200℃ | / |
Density | 2.15g/cm3 | ASTM D792 |
Tensile strength | 20MPa | ASTM D638 |
Elongation at break | 300% | ASTM D638 |
Fire resistance | VW-1 | UL-224 |
Dielectric constant | 2.1 | ASTM D150 |
Volume resistivity | >1015Ω·cm | ASTM D257 |
Specifications | The inner diameter before contraction D（mm) | After contraction the inner diameter D（mm) | Thickness before shrinkage W（mm) | Thickness after shrinkage W（mm) | Packaging length |
Outer layer: Ф 4.0 | 4.0+0.3 | ≤2.1 | 0.20±0.08 | 0.30±0.08 | 1m/pcs |
Inner layer : Ф 3.0 | 3.0±0.1 | Melt | 0.5±0.08 | Melt |
Note: Special sizes and packaging can be customized as required.
1. What is a Double-layer PTFE-FEP Heat Shrink Tube?
A Double-layer PTFE-FEP Heat Shrink Tube is a heat-shrinkable tube made from two layers: Polytetrafluoroethylene (PTFE) and Polyperfluoroethylene (FEP). This combination gives the tube excellent electrical insulation, chemical resistance, high-temperature tolerance, and waterproof properties. It is primarily used for insulating cables, wires, and electrical components in environments that demand high performance under extreme conditions.
2. What are the main advantages of using a Double-layer PTFE-FEP Heat Shrink Tube?
The double-layer PTFE-FEP tube offers several key advantages:
Exceptional Electrical Insulation: It effectively prevents electrical current leakage and insulation breakdown.
High-Temperature Resistance: Can withstand extreme heat, making it ideal for industrial and automotive applications.
Chemical Resistance: Resists exposure to oils, solvents, acids, and other chemicals, which is critical in harsh industrial settings.
Waterproof and Gas Seepage Resistant: It prevents moisture and gas infiltration, ensuring reliable long-term performance.
Low Thermal Conductivity: Ensures minimal heat transfer, further protecting sensitive components from thermal damage.
3. What applications can benefit from using the Double-layer PTFE-FEP Heat Shrink Tube?
This heat shrink tube is highly versatile and is used in a variety of applications:
Electrical Wiring: Provides insulation and protection for cables and wires in harsh environments.
Automotive Industry: Used for protecting sensitive electrical components from high temperatures and chemicals.
Electronics: Ideal for insulating delicate components in consumer electronics and communication systems.
Telecommunications: Protects cables and connectors from environmental factors like moisture and chemical exposure.
Industrial Machinery: Helps prevent the degradation of wiring and cables due to heat, chemicals, and moisture.
4. What makes PTFE-FEP Heat Shrink Tubes better than single-layer alternatives?
The combination of PTFE and FEP offers enhanced durability and protection compared to single-layer heat shrink tubes. PTFE provides excellent electrical insulation, while FEP contributes chemical resistance and high-temperature stability. The double-layer structure provides superior performance in extreme conditions, offering better protection against moisture, chemicals, and physical wear.
Double-layer PTFE-FEP Heat Shrink Tube Polytetrafluor Ethylene is a high-performance, dual-layered heat shrinkable tube that combines the exceptional properties of Polytetrafluoroethylene (PTFE) and Polyperfluoroethylene (FEP). The PTFE material, known for its outstanding electrical insulation properties, and FEP, recognized for its superior chemical resistance and high-temperature tolerance, come together to create a product that offers unparalleled performance in extreme conditions.
This double-layer heat shrink tube provides superior electrical insulation, low thermal conductivity, and excellent flexibility, making it ideal for use in applications requiring both high-temperature resistance and robust sealing properties. It’s particularly suited for industries such as electronics, automotive, and telecommunications, where moisture, high heat, and chemical exposure are common.
The PTFE-FEP heat shrink tube is capable of withstanding high temperatures, making it suitable for various environments, including areas where conventional materials might degrade. It also exhibits excellent waterproof and seepage gas resistance, offering protection against moisture and other environmental factors. This dual-layered design ensures that cables, wires, and other sensitive components remain well-insulated and protected.
Technical index of polytetrafluoroethylene (PTFE) outer layer
Performance project | representative value | test method |
Melting point | 327℃ | / |
Use temperature | -65-260℃ | / |
Density | 2.15g/cm3 | ASTM D792 |
Tensile strength | 24MPa | ASTM D638 |
Elongation at break | 300% | ASTM D638 |
Fire resistance | VW-1 | UL-224 |
Dielectric constant | 2.1 | ASTM D150 |
Volume resistivity | >1015Ω·cm | ASTM D257 |
Technical index of the inner layer of polyperfluoroethypropene (FEP)
Performance project | representative value | test method |
Melting point | 260-270℃ | / |
Use temperature | -65-200℃ | / |
Density | 2.15g/cm3 | ASTM D792 |
Tensile strength | 20MPa | ASTM D638 |
Elongation at break | 300% | ASTM D638 |
Fire resistance | VW-1 | UL-224 |
Dielectric constant | 2.1 | ASTM D150 |
Volume resistivity | >1015Ω·cm | ASTM D257 |
Specifications | The inner diameter before contraction D（mm) | After contraction the inner diameter D（mm) | Thickness before shrinkage W（mm) | Thickness after shrinkage W（mm) | Packaging length |
Outer layer: Ф 4.0 | 4.0+0.3 | ≤2.1 | 0.20±0.08 | 0.30±0.08 | 1m/pcs |
Inner layer : Ф 3.0 | 3.0±0.1 | Melt | 0.5±0.08 | Melt |
Note: Special sizes and packaging can be customized as required.
1. What is a Double-layer PTFE-FEP Heat Shrink Tube?
A Double-layer PTFE-FEP Heat Shrink Tube is a heat-shrinkable tube made from two layers: Polytetrafluoroethylene (PTFE) and Polyperfluoroethylene (FEP). This combination gives the tube excellent electrical insulation, chemical resistance, high-temperature tolerance, and waterproof properties. It is primarily used for insulating cables, wires, and electrical components in environments that demand high performance under extreme conditions.
2. What are the main advantages of using a Double-layer PTFE-FEP Heat Shrink Tube?
The double-layer PTFE-FEP tube offers several key advantages:
Exceptional Electrical Insulation: It effectively prevents electrical current leakage and insulation breakdown.
High-Temperature Resistance: Can withstand extreme heat, making it ideal for industrial and automotive applications.
Chemical Resistance: Resists exposure to oils, solvents, acids, and other chemicals, which is critical in harsh industrial settings.
Waterproof and Gas Seepage Resistant: It prevents moisture and gas infiltration, ensuring reliable long-term performance.
Low Thermal Conductivity: Ensures minimal heat transfer, further protecting sensitive components from thermal damage.
3. What applications can benefit from using the Double-layer PTFE-FEP Heat Shrink Tube?
This heat shrink tube is highly versatile and is used in a variety of applications:
Electrical Wiring: Provides insulation and protection for cables and wires in harsh environments.
Automotive Industry: Used for protecting sensitive electrical components from high temperatures and chemicals.
Electronics: Ideal for insulating delicate components in consumer electronics and communication systems.
Telecommunications: Protects cables and connectors from environmental factors like moisture and chemical exposure.
Industrial Machinery: Helps prevent the degradation of wiring and cables due to heat, chemicals, and moisture.
4. What makes PTFE-FEP Heat Shrink Tubes better than single-layer alternatives?
The combination of PTFE and FEP offers enhanced durability and protection compared to single-layer heat shrink tubes. PTFE provides excellent electrical insulation, while FEP contributes chemical resistance and high-temperature stability. The double-layer structure provides superior performance in extreme conditions, offering better protection against moisture, chemicals, and physical wear.
