PTFE tube, commonly known as Teflon tube or Polytetrafluoroethylene tube, is manufactured from PTFE resin through a specialized paste extrusion or ram extrusion process, followed by sintering.

 

Polytetrafluoroethylene is recognized as one of the most outstanding engineering plastics, offering exceptional high and low temperature resistance, chemical stability, electrical insulation, and self-lubricating properties. PTFE tubing retains all these superior characteristics while providing good formability, making it an ideal solution for fluid transfer and insulation protection in petrochemical, electronics, aerospace, automotive, and related industries.

 

**Key Features**

| **Excellent High & Low Temperature Resistance** | Continuous operating temperature range -80℃ to +260℃; remains flexible down to -250℃; most outstanding among engineering plastics |

| **Extreme Chemical Stability** | Resists almost all strong acids (including aqua regia, hydrofluoric acid), strong alkalis, strong oxidizers, and organic solvents; known as the “King of Plastics” |

| **Lowest Coefficient of Friction** | Coefficient of friction is only 0.04 – the lowest of any polymer; temperature independent; excellent self-lubricating properties |

| **Superior Electrical Insulation** | Dielectric constant approximately 2.0; extremely high volume resistivity; arc resistance >300 seconds; stable at high frequency and high voltage |

| **Excellent Non-Stick Properties** | Virtually no solid materials adhere to its surface; inner wall resists adhesion of colloids and chemicals |

| **Outstanding Aging Resistance** | UV and weather resistant; suitable for long-term outdoor use |

| **High Transparency Option** | Some specifications offer high transparency for visual observation of internal fluid flow |

| **Excellent Flame Retardancy** | Oxygen index >90%; UL94 V-0 rating; self-extinguishing |

 

**Specifications**

| Parameter | Typical Value |

| Continuous Operating Temperature | -80℃ to +260℃ |

| Melting Point | 327℃ |

| Tensile Strength | ≥25 MPa |

| Elongation at Break | ≥300% |

| Dielectric Strength | ≥45 kV/mm |

| Volume Resistivity | Extremely High |

| Oxygen Index | >90% |

| Water Absorption | <0.01% |

| Coefficient of Friction | 0.04 |

| Flame Rating | UL94 V-0 |

| Standard Colors | Milky white opaque, translucent, transparent |

 

| Comparison | **PTFE Tube** | **PFA Tube** | **FEP Tube** | **ETFE Tube** |

| Continuous Temp | -80℃~+260℃ | -80℃~+260℃ | -80℃~+200℃ | -80℃~+150℃ |

| Melting Point | 327℃ | 310℃ | 260℃ | 270℃ |

| Transparency | Translucent/Milky | High clarity | High clarity | Translucent |

| Friction Coefficient | Lowest (0.04) | Low (0.06) | Low (0.06) | Moderate |

| Mechanical Strength | Moderate | Good | Good | **Highest** |

| Abrasion Resistance | Poor | Fair | Fair | **Excellent** |

| Processing Method | Special process | Melt processable | Melt processable | Melt processable |

| Cost | Moderate | Higher | Moderate | Moderate |

 

*Selection Guide**:

> – For **highest temperature (260℃) + lowest friction coefficient**, choose **PTFE tube**

> – For **high transparency + melt processability**, choose **FEP tube or PFA tube**

> – For **high mechanical strength + abrasion resistance**, choose **ETFE tube**

> – For **ultra-pure fluid handling** (semiconductor industry), **PFA tube** is recommended

 

**Product Types**

| Type | Description | Best For |

| **Standard PTFE Tube** | Smooth inner wall; dimensionally stable | General fluid transfer, wire insulation, chemical piping |

| **PTFE Corrugated Tube** | Bellows structure; high flexibility | Applications requiring flexibility and bending; vacuum systems; dynamic applications |

| **PTFE Spiral Tube** | Helical structure; expandable | Moving connections; applications requiring flexibility margin |

| **SS Braided PTFE Tube** | PTFE inner tube + stainless steel braid reinforcement | High-pressure hydraulic systems; high-temperature high-pressure fluid transfer |

| **Steel Lined PTFE Pipe** | Steel outer + PTFE liner | Chemical corrosive media transfer; acid/alkali piping systems |

 

**Applications**

PTFE tube is widely used across multiple industries:

| Application Field | Specific Uses |

| **Petrochemical** | Highly corrosive chemical transfer lines; acid/alkali liquid pipelines; chemical reactor connection tubes |

| **Electronics & Electrical** | High-temperature wire/cable insulation; transformer insulating sleeves; electronic component lead tubing |

| **Aerospace** | Aircraft hydraulic system lines; aviation wire harness; fuel system piping |

| **Automotive** | Engine compartment fuel lines; brake system hoses; sensor cable protection |

| **Medical Devices** | Medical catheters; syringes; surgical instrument insulation components |

| **Food Processing** | Food-grade tubing; high-purity liquid transfer lines |

| **Semiconductor/Photovoltaic** | High-purity chemical transfer; ultrapure water lines; clean room equipment |

| **Environmental/Water Treatment** | Exhaust gas monitoring sampling lines; corrosive wastewater transfer pipes |

| **Home Appliances** | Internal water lines for water heaters; coffee maker tubing; steam iron steam lines |

| **General Industry** | Pneumatic system lines; paint/adhesive transfer lines; hydraulic oil hoses |

 

**Key Advantages**

**1. Chemical Corrosion Resistance – The King of Plastics**

PTFE is virtually unaffected by any chemical substance, resisting all strong acids (including aqua regia, hydrofluoric acid), strong alkalis, strong oxidizers, and various organic solvents. In chemical, pharmaceutical, and other highly corrosive media transfer applications, PTFE tube is irreplaceable.

 

**2. Wide Temperature Range Stability – -80℃ to +260℃**

PTFE tube provides stable long-term operation from -80℃ to +260℃. It remains flexible at -250℃, with degradation negligible even after one month at 200℃. Whether in cryogenic environments or high-temperature processes, PTFE tube performs reliably.

 

**3. Non-Stick Self-Lubricating – Lowest Coefficient of Friction**

With a coefficient of friction of only 0.04 – the lowest of any polymer – PTFE tube provides minimal flow resistance. The inner wall does not adhere colloids or chemicals, preventing clogging and making it ideal for viscous fluid transfer.

 

**4. Electrical Insulation – H-Class Insulation Material**

With a dielectric constant of approximately 2.0 (the lowest among insulation materials), extremely high volume resistivity, and arc resistance exceeding 300 seconds, PTFE tube maintains excellent electrical performance even at high frequency, high voltage, and high temperature.

 

**5. Aging Resistance – Outdoor Use**

PTFE offers excellent UV resistance and weatherability, with no cracking or aging even after long-term outdoor exposure. Suitable for outdoor equipment, solar systems, communication base stations, and other outdoor applications.

 

**6. Environmentally Clean – Food Grade Suitable**

PTFE is non-toxic, odorless, non-absorbent (water absorption <0.01%), and meets food contact material requirements. Suitable for food processing, pharmaceutical, ultrapure water treatment, and other applications with strict hygiene requirements.

Wide Temperature Range Stability – -80℃ to +260℃