Wire & Cable Technical Resources 

        High Performance Technical Information

FEP Detailed Properties

(Fluorinated Ethylene Propylene)

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.    

 

FEP Properties ASTM UNIT FEP

MECHANICAL PROPERTIES

Specific Gravity D792   2.15
Elongation   D638 % 250~330
Tensile Strength  D638 psi 2,700~3,100
Flexural Strength   psi no break
Compressive Strength D695   710~860
Tensile Elastic Modulas 
(Young's Modulas) 
D638 psi 50,000

Flexural Modulas
D790 psi 78,000~92,000
D790 103MPa (103kgf/cm2) 0.5-0.6 (5.5-6.5)
Flex Life D2176 (MIT cycles) 5,000~80,000
Hardness Durometer  D636 Shore D 55
Coefficient of Friction   D1984 Static 0.05
Abrasion Resistance Taber 1000 revs. 14.8
Impact Strength IZOD
73F/23C
D256 notched ft/lbs/in no breakdown
THERMAL PROPERTIES
Melting Point   C
(F)
260
(500)
Upper Service
Temperature(20,000h)
  C
(F)
204
(400)
Flame Rating**   UL94 VO

Thermal Conductivity
  BTU/hr/sq ft/deg F in 1.4
C117 cal/sec/cm2,C/cm n.a
Heat of Fusion   BTU/LB
 cal/g
11
n.a
Heat of Combustion   BTU/LB 
cal/g
2200
1840
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
>1400
Volume Resistivity   D257 ohm-cm >1018
Surface Resistivity   ohm/sq. >1016
GENERAL PROPERTIES
Chemical/Solvent
Resistance
    Excellent
Water Absorption, 24h   % <0.01
Refractive Index     1.338

Arc Resistivity
  % >300
D495 sec >300

 

 
 

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Last modified: Monday January 03, 2005       

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