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PVDF (Kynar) Detailed Properties

(Polyvinylidene fluoride)

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.    

 

PVDF Properties ASTMUNIT PVDF
MECHANICAL PROPERTIES
Specific Gravity D792  1.8
Elongation D638% 435
Tensile Strength  D638psi4,500~6,200
Flexural Strength   psi8,600~9,500
Compressive StrengthD695  5,800
Transversal Contraction(Poisson's  Ratio)     0.35
Tensile Elastic Modulus 
(Young's Modulus) 
D638psi 160,000
Flexural ModulusD790 psi140,000
D790103MPa(103kgf/cm2) n.a.
Flex Life D2176(MIT cycles)n.a.
Hardness Durometer  D636 Shore D72
Coefficient of Friction  D1984 Static02~04
Abrasion ResistanceTaber 1000 revs.n.a.
Impact Strength IZOD
73°F/23°C
D256notched ft/lbs/in 20.7
THERMAL PROPERTIES
Melting Point  °C
(°F)
178
(352)
Upper Service
Temperature(20,000h)
 °C
(°F)
129
(625)
Flame Rating**  UL94VO
Thermal Conductivity   BTU/hr/sq ft/deg F in n.a.
C117 cal/sec/cm2,ºC/cm 3.0 x 10-4
Heat of Fusion   BTU/LB
 cal/g
n.a.
4,390
Heat of Combustion   BTU/LB
 cal/g
n.a.
n.a.
Low Temperature Embrittlement   °C
(°F)
-62
(-80)
ELECTRICAL PROPERTIES
Dielectric Constant   D150/103Hz n.a
  D150/106Hz n.a
Dissipation Factor   D150/103Hz n.a
  D150/106Hz n.a
Dielectric Strength   125MILV.
10MILV.
1700
n.a.
Volume Resistivity   D257 ohm-cm 1.5 x 1015
Surface Resistivity   ohm/sq. n.a
GENERAL PROPERTIES
Chemical/Solvent
Resistance
    Very Good
Water Absorption, 24h   % .04
RefractiveIndex     1.42
Arc Resistivity   % n.a
D495 sec 50~60