PVDF (Polyvinylidene fluoride)

PVDF is characterized by low permeability, as well as strong abrasion and chemical resistance.
Exceptional purity and chemical resistance with moderate strength.
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PVDF is a specialty plastic material in the fluoropolymer family; it is used generally in applications requiring the highest purity, strength, and resistance to solvents, acids, bases and heat and low smoke generation during a fire event. Compared to other fluoropolymers, it has an easier melt process because of its relatively low melting point of around 177 °C.

Properties
  1. High Purity and low extractables
  2. Chemically resistant to most common solvents including acids, salts, oils and steam
  3. Resistance to ultraviolet, nuclear radiation, and standard sterilization methods
  4. Resistance to weathering and fungi
  5. Wide service temperature ranges: (-50C to 150C)
  6. Nuclear radiation resistant
  7. Excellent creep resistance
  8. Low permeability
  9. Great Dielectric Properties
 PTFE/PEEK/PVDF Properties   
PropertiesUnitASTM or UL testPTFEPEEKPVDF
Densitylb/in.³
g/cm³
D7290.078
(2.2)
0.047
(1.31)
0.064
(1.77)
Water Absorption24 hr.(%)D570<0.010.10.03
MECHANICAL
Strength/Weight
Ratio
g/ccTensile
Strength/Density
1800122004000
Tensile StrengthpsiD6383900160007000
Tensile ModulespsiD63880000500000290000
Tensile Elongation
at Break
%D6383002050
Flexural StrengthpsiD790No Break2500097000
Flexural ModuluspsiD79072000630000290000
Hardness
Rockwell,R/M Scale
D785R58R126R80
IZOD Impactft-lb/inD2563.51.63
THERMAL
Coefficient of Linear
Thermal Expansion
10-5in./in./℉D6967.52.66.6
Heat Deflection
Temperature
at 264 psi,(℉/℃)D648132/55320/160230/110
Melting℉/℃D3418635/335644/340332/166
Max.Operating
Temperature
℉/℃-500/260480/249300/150
ThermalBTU-in./ft.2-hr.-℉C1771.71.81.2
Flammability Rating-UL94V-0V-0-
ELECTRICAL
Dielectric Strengthshort time,1/8''
thick,(V-mil)
D1496004801700
Dielectric Constant
at 1MHz
-D1502.13.38.5
Dissipation Factor at
1 MHz
-D150<0.00020.0030.015
Volume Resistivityat 50%RH,(ohm-cm)D257>10^11
10^162*10^14
APPROVALS
Approval-FDAYESYESYES
Approval-RoHSYESYESYES