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MFA Detailed Properties

(Polytetrafluoroethylene-Perfluoromethylvinylether)

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.    

 

MFA Properties ASTM UNIT MFA
MECHANICAL PROPERTIES
Specific Gravity D792  2.12~2.17
Elongation D638 %300~600
Tensile Strength D638 psi3,500~4,400
Flexural Strength D790 psin.a.
Compressive StrengthD695  2,200
Tensile Elastic Modulus 
(Young's Modulus) 
D638psi 65,000~78,000
Flexural Modulus D790psi 95,000
D790103MPa(103kgf/cm2) n.a.
Flex LifeD2176 (MIT cycles)10,000~100,000
Hardness Durometer  D636 Shore DD55-60
Coefficient of Friction  D1984 Static0.2
Abrasion ResistanceTaber 1000 revs.10~17
Impact Strength IZOD
73F/23C
D256notched ft/lbs/in no breakdown
THERMAL PROPERTIES
Melting Point  C
(F)
285
(545)
Upper Service
Temperature(20,000h)
 C
(F)
260
(500)
Flame Rating**  UL94 VO
Thermal Conductivity  BTU/hr/sq ft/deg F in 1.4
C117cal/sec/cm2,C/cm n.a.
Heat of Fusion  BTU/LB
 cal/g
25.6
n.a.
Heat of Combustion  BTU/LB
 cal/g
6200
n.a.
Low Temperature Embrittlement  C
(F)
-232
(-450)
ELECTRICAL PROPERTIES
Dielectric Constant D150/103Hz 2.0
 D150/106Hz 2.1
Dissipation Factor  D150/103Hz n.a
 D150/106Hz n.a
Dielectric Strength  125MILV.
10MILV.
n.a
2,000
Volume Resistivity  D257 ohm-cm1017
Surface Resistivity  ohm/sq. 1017
GENERAL PROPERTIES
Chemical/Solvent
Resistance
   Excellent
Water Absorption, 24h  %<0.03
RefractiveIndex    n.a
Arc Resistivity  %n.a
D495sec240