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Polyvinylidene Fluoride (PVDF)

PVDF is a thermoplastic, further classified as a polyvinyl plastic. It has a fairly high density and a moderately high ductility among thermoplastics. The graph bars on the material properties cards below compare PVDF to: polyvinyl plastics (top), all thermoplastics (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elastic (Young's, Tensile) Modulus

1.1 GPa 0.16 x 106 psi

Elongation at Break

200 %

Flexural Modulus

1.5 GPa 0.22 x 106 psi

Flexural Strength

75 MPa 11 x 103 psi

Impact Strength: Notched Izod

180 J/m 3.3 ft-lb/in

Rockwell R Hardness


Tensile Strength: Ultimate (UTS)

49 MPa 7.1 x 103 psi

Thermal Properties

Glass Transition Temperature

-40 °C -40 °F

Heat Deflection Temperature At 1.82 MPa (264 psi)

85 °C 190 °F

Heat Deflection Temperature At 455 kPa (66 psi)

150 °C 300 °F

Maximum Temperature: Autoignition

640 °C 1180 °F

Maximum Temperature: Corrosion

150 °C 300 °F

Maximum Temperature: Decomposition

440 °C 820 °F

Maximum Temperature: Mechanical

140 °C 290 °F

Melting Onset (Solidus)

170 °C 330 °F

Specific Heat Capacity

1120 J/kg-K 0.27 BTU/lb-°F

Thermal Conductivity

0.12 W/m-K 0.069 BTU/h-ft-°F

Thermal Expansion

120 µm/m-K

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz


Dielectric Strength (Breakdown Potential)

10 kV/mm 0.39 V/mil

Electrical Resistivity Order of Magnitude

12 10x Ω-m

Otherwise Unclassified Properties


1.8 g/cm3 110 lb/ft3

Limiting Oxygen Index (LOI)

49 %

Refractive Index


Water Absorption After 24 Hours

0 %

Common Calculations

Stiffness to Weight: Axial

0.35 points

Stiffness to Weight: Bending

20 points

Strength to Weight: Axial

7.8 points

Strength to Weight: Bending

17 points

Thermal Diffusivity

0.061 mm2/s

Thermal Shock Resistance

27 points

Followup Questions

Further Reading

Handbook of Vinyl Formulating, 2nd ed., Richard F. Grossman (editor), 2008

Fluoroplastics: Volume 2 - Melt Processable Fluoropolymers, Sina Ebnesajjad, 2003

SPI Plastics Engineering Handbook of the Society of the Plastics Industry, Inc., 5th ed., Michael L. Berins (editor), 2000

Modern Plastics Handbook, Charles A. Harper (editor), 1999

Plastics Materials, 7th ed., J. A. Brydson, 1999