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Aclon® (PolyChloroTriFluoroEthylene) is a fluorocarbon based polymer and is frequently abbreviated as PCTFE. PCTFE combines physical and mechanical properties, non-flammability, chemical resistance, near-zero moisture absorption and excellent electrical properties not found in any other thermoplastic fluoropolymer. This material also has high compressive strength, exceptional resistance to cold flow, and performs well in a temperature range of -400° F to 400°F.

Aclon® maintains an outstanding electrical insulating capability through thermal cycling and in high humidity environments. This material’s high compressive strength and dimensional stability make it a good choice for structural material, while its low outgassing rate (0.01% TML, 0.00% CVCM, 0.00% WVR when tested per ASTM E-595-90), and permeability make PCTFE a great choice for laboratory, aerospace, flight applications, and instrumentation.


  • Aclon™ 3100
  • Aclon™ 3280

Brand Names

  • Kel-F®
  • Tecaflon®
  • Chemflour®
  • Neoflon®

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 representative by filling out the form below.

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At a Glance

Generic Name

Available In
Sheet, Rod, Tube

ASTM-D-1430, AMS 3650, FDA Regulation 21 CFR 177.1380, ITAR Registered

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Technical Information

Stock Products Properties Applications Advantages

Stock Products

Sheet .125” – 1.25” Std sizes, CTS White
Rod .125” – 3” dia Std sizes, CTS White
Tube I.D. 1/16” – 7/8” O.D. 1/8” – 1″ Std sizes, CTS White

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


Physical PropertiesUnitsASTMResults
Density g/cm^3 D792 0.077
Water Absorption, 24 hrs % D570 <.01
Mechanical PropertiesUnitsASTMResults
Tensile Strength MPa D638 5300
Tensile Modulus MPa D638 207000
Tensile Elongation @Break >50 D638 150
Flexural Strength MPa D790 8500
Flexural Modulus psi 180000
Compressive Strength psi D695 5500
Compressive Modulus psi D695 180000
Hardness, D D795 D790
Izod Impact Strength, notched kJ.m^2 D256 5
Thermal PropertiesUnitsASTMResults
Coeffcient of Linear Thermal Expansion x10^-5/K 7
Heat Deflection Temp at 66 psi °F D648 258
Melting Temperature °F D3418 415
Max Operating Temp. °F 270
Thermal Conductivity W/mK C177 1.45
Electrical PropertiesUnitsASTMResults
Dielectric Strength. 1/8″ th. kV/mm D149 500
Volume Resistivity, 50% RH ohm-cm D257 10^18
NOTE: The property values presented above are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets. All values at 73°F (23°C) unless otherwise noted.


  • Ball valve seats
  • Bearings
  • Bushings
  • Control pistons
  • Diaphragms
  • Structural parts in pure oxygen applications
  • Oxygen gauge parts
  • Pump housings
  • Plugs
  • Insulators
  • Sensor housings
  • Wear Guides


  • Very good chemical resistance
  • Hydrolysis and superheated steam resistant
  • Very high limiting oxygen index
  • Self-extinguishing
  • Good machinability
  • High thermal capacity
  • Good sliding properties
  • Good electrical insulation
  • Lower cold flow than other fluoropolymers
  • High compressive strength
  • Low gas permeability
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