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PFA Tubing: The Ideal Material for Extreme Temperature Resistance and Corrosion Resistance
Published:2025-11-12
In extreme working conditions of industries such as chemical engineering, electronics, and new energy, fluid transfer pipelines need to withstand both high/low temperature challenges and erosion from highly corrosive media. Traditional plastic pipes tend to soften at high temperatures, while metal pipes are prone to corrosion. However, PFA tubing (Perfluoroalkoxy Alkane Tubing) has become the preferred material in harsh scenarios due to its dual characteristics of "extreme temperature resistance ranging from -180℃ to 260℃ and full-range corrosion resistance". As a manufacturer specializing in the R&D of fluoroplastic pipelines, Shanghai Cunjian's PFA tubing is more suitable for the needs of various industries with its high purity and high stability.
I. Two Core Advantages: Breaking Through the Limits of Working Conditions
(1) Extreme Temperature Resistance: Stable as a Rock in High and Low Temperature Environments
The temperature resistance range of PFA tubing covers from -200℃ to 260℃, making it one of the few pipeline materials that can maintain stable performance under extreme temperatures:
  • Low-temperature scenarios: In ultra-low temperature environments of -200℃ (such as liquid nitrogen transfer and freezing experimental devices), it does not become brittle or hard, and still maintains good flexibility, avoiding pipeline rupture and leakage caused by low temperatures.

  • High-temperature scenarios: When used for a long time at a high temperature of 260℃ (such as material discharge from high-temperature reactors and heat medium transfer), it does not soften or deform, and has a low thermal shrinkage rate (≤1%). There is no need for frequent pipeline replacement, which greatly reduces maintenance costs.

Shanghai Cunjian's PFA tubing has passed strict high-low temperature cycle tests (alternating cycles between -180℃ and 260℃ for 10 times), with no cracking or performance degradation of the tubing, ensuring reliability under extreme temperature working conditions.
(2) Full-Range Corrosion Resistance: Seamless Resistance to Highly Corrosive Media
As an important member of the fluoroplastic family, PFA tubing inherits the chemical inertness of fluoromaterials and exhibits "full-range resistance" to strong acids, strong alkalis, organic solvents, and strong oxidants:
  • Resistance to strong acids: It can transfer 98% concentrated sulfuric acid, 50% nitric acid, 37% hydrochloric acid, etc., without dissolution, aging, or impurity precipitation.

  • Resistance to strong alkalis: When facing 50% sodium hydroxide and potassium hydroxide solutions, it shows no corrosion or embrittlement, making it suitable for the transfer of strong alkali raw materials in the chemical industry.

  • Resistance to special media: It is stable to organic solvents (methanol, acetone), strong oxidants (hydrogen peroxide, chlorine water), and fluorides (lithium hexafluorophosphate in lithium battery electrolytes), solving the problem of "leakage upon contact with corrosion" of traditional pipelines.

Shanghai Cunjian uses high-purity PFA raw materials (purity ≥99.9%) that are free of impurities and harmful additives, ensuring no harmful substances are precipitated when in contact with media. It is especially suitable for fields such as electronics and pharmaceuticals that have high requirements for media purity.
II. Additional Properties: Adapting to Complex Industrial Needs
In addition to the core properties of temperature resistance and corrosion resistance, PFA tubing also has a number of additional advantages that adapt to industrial scenarios, further enhancing its applicability:
  • High transparency: The tubing is translucent, allowing real-time observation of the fluid transfer status inside the tube (such as the presence of impurities and changes in flow rate). This facilitates operators to monitor the production process and avoids production accidents caused by pipeline blockage or abnormal media.

  • Smooth inner wall: The inner wall has a low roughness (Ra ≤0.1μm), so the fluid resistance is much lower than that of metal pipelines, reducing energy consumption during transfer. Moreover, it does not stick to materials and is not easy to scale, making it suitable for transferring high-viscosity media (such as chemical slurries and food sauces). Subsequent cleaning only requires clean water or low-pressure rinsing, saving time and effort.

  • Excellent electrical insulation: It has a high volume resistivity (≥10¹⁸Ω·cm). In the electronics industry (such as semiconductor wafer cleaning and circuit board etching solution transfer), it can prevent equipment short circuits caused by pipeline conductivity, ensuring production safety.

  • Aging resistance and impact resistance: When exposed to air or ultraviolet radiation for a long time, it does not age or become brittle. At room temperature, its impact strength reaches 15kJ/m², enabling it to withstand slight collisions (such as collisions during workshop equipment operation) without being easily damaged.

III. Typical Application Fields: Accurately Adapting to Industry Pain Points
The performance advantages of PFA tubing make it indispensable in many high-demand industries. Shanghai Cunjian provides customized solutions based on the characteristics of different industries:
  • Chemical industry: It is used for media transfer between high-temperature reactors and heat exchangers. It can withstand high temperatures above 200℃ and corrosion from strong acids/alkalis, avoiding raw material waste and safety hazards caused by corrosion and leakage of traditional metal pipes.

  • Electronics/semiconductor industry: It is used to transfer high-purity etching solutions (such as mixed solutions of hydrofluoric acid and sulfuric acid) and cleaning solutions. The high-purity PFA raw materials ensure no impurity precipitation, avoiding contamination of wafers or circuit boards and ensuring product yield.

  • New energy industry: It is suitable for the transfer of lithium battery electrolytes (containing fluorides such as lithium hexafluorophosphate). With corrosion resistance to fluorides and good insulation, it prevents electrolyte leakage and circuit faults, contributing to the safety of battery production.

  • Pharmaceutical/food industry: Food-grade PFA raw materials are used. The smooth inner wall is easy to clean, and it can withstand high-temperature steam sterilization at 121℃, meeting the GMP (Good Manufacturing Practice) hygiene standards. It is suitable for the transfer of medicinal liquids and high-temperature food sauces (such as high-temperature boiled jam), avoiding product contamination.

Conclusion
In industrial scenarios that need to cope with both extreme temperatures and strong corrosion, PFA tubing breaks through the performance bottlenecks of traditional pipelines with its core advantages of "extreme temperature resistance and full-range corrosion resistance". Relying on high-purity raw materials, precise technology, and customized services, Shanghai Cunjian's PFA tubing has become a reliable choice for industries such as chemical engineering, electronics, and new energy. It not only ensures the safe and stable transfer of fluids but also reduces the maintenance costs of enterprises, truly realizing "solving working condition problems with high-quality materials".


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CJan Fluid Technology Co., Ltd. is a professional supplier of fluid technology solutions. Since establishment, we have been committed to solving fluid technology problems for global customers through our own research and development, import agency, and customized product services.

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