Materials Overview

PFA Properties

Applications:
  • Non-shrink and heat shrink tubing
  • Heat Exchangers
  • Medical PFA Tubing
  • Foamed Coaxial Cable
  • Foamed Plenum Wires
  • Chemical Equipment Lining
  • Semiconductor Wafer Baskets
  • Drum Liners
  • Piping for Semiconductor Industry
  • Coatings
    • Light Bulbs
    • Chemical Processing Equipment
    • Electronics Manufacturing Equipment
    • Mold Release
    • Paint Spray Cups
Inert to:
  • Strong Mineral Acids
  • Inorganic Bases
  • Inorganic Oxidizing Agents
  • Salt Solutions
  • Organic Acids
  • Anhydrides
  • Aromatics
  • Alcohols
  • Aldehydes
  • Ketones
  • Ethers
  • Esters
  • Chlorocarbons
  • Fluorocarbons
  • Mixtures of Above Compound
Chemical Properties and Reasoning
Reduced Chain Length Improved Flow
Increased Chain Entanglements Improved Creep Resistance
Oxygen Atom at Branch in Chain Thermal Stability Similar to PTFE
Increased Melting Point Upper Use Temperatures similar to PTFE

 

PFA – Perfluoroalkoxy (vinyl ether) – TYPICAL PROPERTIES
Property Value Units Method
MECHANICAL PROPERTIES
Tensile Strength, 73°F 4060 – 4500
28 to 31
psi
MPa
Elongation, 73°F 260 – 300 %
Flexural Strength, 73°F No break at flexure D 790
Impact Strength, Izod No break
Compressive Stress at 1% deformation, MPa D 695
Yield Strength
At 23 deg C
1740
12
psi
MPa
Density
(as polymerized)
2.12 to 2.17 gm/cu.cm
THERMAL PROPERTIES
Coefficient of Linear Expansion
20 to 100 deg C
12 x 10-5 K-1
Melting Point 575-590
300-310
deg F
deg C
Thermal Conductivity 1.45
0.209
Btu·in/h·ft2·°F
W/m·K
ASTM C 177
Specific Heat 0.25
1.047
Btu/lb/deg F
kJ/Kg/deg K
Heat Distortion Temperature, 66 lb/sq.in (0.455 MPa) 158 to 171
70 – 77
deg F
deg C
D 648
Service Temperature -418 to 403
-250 to 206
deg F
deg C
Processing Temperature 698 – 743
370 – 395
deg F
deg C
ELECTRICAL PROPERTIES
Dielectric Strength,
short time, 0.080”
MV m-1
Surface Arc-Resistance >300 (does not track) sec D 495
Volume Resistivity, dry, @ 50% RH >1018 ohm-cm D 257
Surface Resistivity, @ 100% RH 1016 ohm/sq.
Dielectric Constant 1kHz to 1GHz 2.06 ε D150-81
Dielectric Strength 78.8* kV mm-1 D149
Dissipation Factor @ 60 Hz – 1 MHz <0.0001 D150-81
OTHER PROPERTIES
Refractive Index 1.344 nD 25 D 542
Water Absorption <0.1 % D570-81
Flame Rating+ VE-0 UL-94
Limiting Oxygen Index 95 % Oxygen D 2863
Resistance to Weathering Excellent
Specific Gravity 2.12-2.17 D792-66 (1979)
Static coefficient of friction 0.05-0.08
CO2 Permeability 273 Ng cm m-2 s-1
O2 Permeability 637 Ng cm m-2 s-1
N2 Permeability 91 Ng cm m-2 s-1

+ Numerical rating for flame spread is not intended to reflect hazards presented by this or any other material under actual fire conditions

NOTE: The information, recommendations and opinions contained herein is only a guide and is intended solely for your consideration, inquiry and verification. The suitability of any material under specific conditions of application is not guaranteed in any manner. Fluorotherm Polymers Inc does not assume legal responsibility for the use of data presented here in any form, under any circumstances, any application, test or communication. Nothing contained herein is to be interpreted as a license or authorization to operate under or infringe any patent.

 

[an error occurred while processing this directive]