PCTFE Polymer Resin – Low Thermal Expansion, Excellent Gas Barrier, for Medical & Aerospace

1. Product Description

PCTFE (Polychlorotrifluoroethylene) resin is a high-performance fluoropolymer known for its exceptional moisture barrier properties, ultra-low gas permeability, and excellent clarity. It offers outstanding chemical resistance, dimensional stability, and low outgassing characteristics, making it ideal for precision molding applications. With a continuous service temperature range from -200°C to +150°C, PCTFE resin is widely used in critical environments where stability and purity are essential. Its non-flammable, non-toxic nature also complies with demanding safety standards such as FDA and ASTM.

2. Product Applications

PCTFE resin is suitable for use in the following industries and applications:

• Cryogenic components (valves, seals, O-rings)

• High-performance barrier films for moisture-sensitive electronics and pharmaceuticals

• Semiconductor and electronic parts

• Precision medical components

• Aerospace insulation and components

• Chemical processing equipment

• Transparent mechanical parts requiring optical clarity and dimensional stability
  
  

  3. Key Technical Properties

  Property	Value / Range	Test Method
  Appearance	Transparent / Clear Pellets	Visual Inspection
  Density	2.10 – 2.17 g/cm³	ASTM D792
  Melting Point	~210°C (410°F)	ASTM D3418
  Thermal Stability	Excellent up to 150°C continuous use	–
  Water Vapor Transmission Rate	< 0.1 g·mm/m²·day (extremely low)	ASTM E96
  Oxygen Permeability	< 1.0 cm³·mm/m²·day·atm	ASTM D1434
  Tensile Strength	≥ 35 MPa	ASTM D638
  Elongation at Break	≥ 50%	ASTM D638
  Flame Resistance	Non-flammable	UL 94 V-0
  Chemical Resistance	Excellent against acids, bases, oils	–

  
  

  4. FAQ – Frequently Asked Questions

  Q1: What makes PCTFE resin different from PTFE or FEP?
  A1: PCTFE has significantly lower gas permeability, better dimensional stability, and higher tensile strength, making it ideal for moisture- and air-sensitive applications.

  Q2: Can PCTFE resin be injection molded?
  A2: Yes, it has excellent processability for precision injection and compression molding.

  Q3: Is PCTFE FDA approved for food or medical use?
  A3: Yes, high-purity grades of PCTFE resin comply with FDA regulations and are suitable for medical applications.

  Q4: What’s the temperature range for PCTFE use?
  A4: PCTFE maintains performance from -200°C to +150°C.

  Q5: Is PCTFE resistant to radiation or UV?
  A5: PCTFE offers good resistance to UV and moderate resistance to gamma radiation.

  Q6: How does PCTFE perform in cryogenic conditions?
  A6: It retains mechanical integrity and sealing performance even at extremely low temperatures, making it ideal for cryogenic valves and gaskets.

  Q7: Can PCTFE be used as a transparent barrier film?
  A7: Yes, it is widely used for transparent films in pharmaceutical and electronics packaging due to its ultra-low moisture permeability.

  Q8: What is the shelf life of PCTFE resin?
  A8: If stored properly in dry conditions, it has an indefinite shelf life without performance degradation.

  Q9: Is PCTFE recyclable or reusable?
  A9: It can be reprocessed under controlled conditions, but recycling is less common due to its high-performance nature.

  Q10: What processing techniques are suitable for PCTFE resin?
  A10: Suitable methods include injection molding, compression molding, extrusion, and machining of molded parts.

Shenzhen Teflon New Material Technology Co., Ltd. is a leading manufacturer and supplier of high-performance fluoroplastic raw materials, semi-finished products, and raw material solutions in China, with over 10 years of production experience. Our customers span various industries, including aerospace, semiconductors, fluid handling, petroleum, specialty gases, electronics, automotive, UAVs, medical, and construction.

Our product range includes fluoropolymer raw materials such as FEP, PFA, PTFE, PCTFE, PVDF, and ETFE, as well as fluoroplastic products including tubes, rods, gaskets, films, sheets, and coatings.