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PFA Detailed Properties

(Perfluoroalkoxy)

The table below lists a generally accepted summary of properties that we believe to be reliable.   Please note that many of these resins are produced in several varieties and property characteristics may vary.  Therefore, determination of resin is dependent on the application and this table is only meant to serve as a general guideline.    

 

PFA Properties ASTM UNIT PFA
MECHANICAL PROPERTIES
Specific Gravity D792   2.15
Elongation  D638 % 280~400
Tensile Strength  D638 psi 4,000~4,500
Flexural Strength D790 psi no break
Compressive Strength D695   710~860
Tensile Elastic Modulus 
(Young's Modulus) 
D638 psi 72,500~87,000
Flexural Modulus D790 psi 94,000~99,000
D790 103MPa(103kgf/cm2) 0.6-0.7(6.6-7.0)
Flex Life D2176 (MIT cycles) 10,000~500,000
Hardness Durometer  D636 Shore D D55~60
Coefficient of Friction   D1984 on steel 0.2
Abrasion Resistance Taber 1000 revs. 9~17
Impact Strength IZOD
73F/23C
D256 notched ft/lbs/in no break
THERMAL PROPERTIES
Melting Point   C
(F)
305
(582)
Upper Service
Temperature(20,000h)
  C
(F)
260
(500)
Flame Rating**   UL94 VO
Thermal Conductivity   BTU/hr/sq ft/deg F in 1.3
C117 cal/sec/cm2,C/cm 6 x10-6
Heat of Fusion   BTU/LB
 cal/g
13
n.a.
Heat of Combustion   BTU/LB
 cal/g
2300
n.a.
Low Temperature Embrittlement   C
(F)
-268
(-450)
ELECTRICAL PROPERTIES
Dielectric Constant   D150/103Hz 2.1
  D150/106Hz 2.1
Dissipation Factor   D150/103Hz n.a
  D150/106Hz n.a
Dielectric Strength   125MILV.
10MILV.
500
>2000
Volume Resistivity   D257 ohm-cm >1018
Surface Resistivity   ohm/sq. >1017
GENERAL PROPERTIES
Chemical/Solvent
Resistance
    Excellent
Water Absorption, 24h   % <0.03
Refractive Index     1.34
Arc Resistivity   % >300
D495 sec >300