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CTFE or PCTFE Sheets, Rods, Tubes & Film


Chlorotrifluoroethylene (CTFE) and polychlorotrifluoroethylene (PCTFE) are very similar materials and frequently referred to by brand names such as Kel-F, Neoflon, Aclar, and Chemfluour 767. CTFE and PCTFE are simply the generic names that reflect the chemical make-up of these materials.

PCTFE and CTFE differ from other common fluoropolymers as they replace a fluorine atom with a chlorine atom. This small change offers multiple advantages over similar materials in specific applications.


What are the Benefits of CTFE and PCTFE?   

CTFE/PCTFE may be confused with other fluoropolymers such as PTFE—better known as Teflon—but the differences in the materials are quite notable. While there may be some overlap, it should be noted that CTFE/PCTFE and Teflon are each ideal for different purposes.

Choosing CTFE or PCTFE during manufacturing may be a beneficial choice for many designs. Both offer excellent stress-crack resistance and high mechanical strength. CTFE and PCTFE are frequently utilized in cryogenic valve seats, high-pressure gas seats and deals, and various electrical components. A low rate of moisture absorption ensures that CTFE/PCTFE products will maintain beneficial electrical properties even in the face of high humidity—a property that is largely unique among competitive materials. 

CTFE and PCTFE offer a wide range of benefits, such as:

  • Chemical resistance
  • Long-term weathering
  • Non-stick properties
  • Non-flammable properties
  • Low dielectric constant
  • Low dissipation factor
  • High arc resistance
  • Surface and volume resistivity
  • Flexibility at low temperatures
  • Thermal stability at high temperatures
  • Low deformation under load stresses
  • Low coefficient of friction
  • Resistant to radiation

Applications of CTFE/PCTFE

CTFE and PCTFE see use in a wide variety of industries. The material is non-flammable, chemical resistant, possesses near-zero moisture absorption, and boasts superior electrical capabilities over other thermoplastic fluoropolymers such as PTFE (Teflon). Common applications of CTFE/PCTFE include:


  • Structures. With high levels of dimensional stability across low and high temperatures, CTFE/PCTFE materials make quality structural components. The materials remain stable in temperatures as low as -400° F and as high as 380° F, making them suitable for a wide range of structural purposes and use in harsh environments.
  • Medical/Research/Pharmaceutical. With low outgassing rates and permeability, CTFE and PCTFE often see use in specialized applications, such as laboratory instrumentation and tools. The pharmaceutical industry relies on the material to provide moisture barriers in packaging. 
  • Electronics. PCTFE and CTFE see common use as moisture barriers for sensitive electronic components, such as LCD panels in televisions and computer monitors.
  • Semiconductors. Some semiconductor process components are often made from CTFE or PCTFE, such as wafer boats. The high strength and beneficial electrical properties of the materials make them ideal for these applications.
  • High-vacuum. High-vacuum applications benefit from CTFE and PCTFE due to their exceptional stability, crack resistance, and corrosion resistance. 

CTFE and PCTFE are frequently utilized in the fabrication of:

  • Valve seats, seals, and stems
  • Gears, cams, and bearings
  • Gaskets
  • Fluid handling systems
  • Chemical apparatus

Emco Plastics offers brand name CTFE and PCTFE products designed to exceed your expectations. For more information about these CTFE and PCTFE or our other products and services, please contact us or request a quote.


Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative by filling out the form below.


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At a Glance

Generic Name

Available In
Sheet, Rod, Tube, Film

FDA compliant

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Technical Information

Stock Products Applications Advantages

Stock Products

Sheet 1/16″ – 2″ 12, 14″, 15″ sq ; CTS Std. foot lengths
Rod 1/8″ – 3-1/4″
Tube Available
Film Available

Kel-F® is a registered tradename of 3M. In 1996, 3M discontinued manufacturing of Kel-F. Currently, all PCTFE resin is manufactured by Daikin under the tradename of Neoflon® or by Allied Signal under the tradename of Aclon®. Kel-F is still the most commonly used tradename used to describe PCTFE.

Give us your cut-to-size dimensions. We will precision-cut these plastics to your exact size. Additional sizes and colors available upon request.


  • Valve seats, seals, and stems
  • Gears, cams, bearings
  • Gaskets
  • Fluid handling systems
  • Chemical apparatus


  • Chemical resistance
  • Long-term weathering
  • Non-stick
  • Non-flammability
  • Low dielectric constant and low dissipation factor
  • High arc resistance, surface and volume resistivities
  • Flexibility at low temperatures and thermal stability at high temperatures
  • Low coefficient of friction
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