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Plasticized (Flexible) Polyvinyl Chloride (PVC-P)

PVC-P is a thermoplastic, further classified as a polyvinyl plastic. It has a very low tensile strength and a moderately high ductility relative to other thermoplastics.

Mechanical Properties

Graph bars compare PVC-P to other materials. From top to bottom: polyvinyl plastic, thermoplastics, and the entire database.

Elastic (Young's, Tensile) Modulus

1.4 GPa 0.2 x 106 psi

Elongation at Break

180 %

Impact Strength: Notched Izod

550 J/m 10 ft-lb/in

Poisson's Ratio


Strength to Weight Ratio

11 kN-m/kg

Tensile Strength: Ultimate (UTS)

16 MPa 2.2 x 103 psi

Thermal Properties

Glass Transition Temperature

75 °C 170 °F

Melting Onset (Solidus)

190 °C 370 °F

Specific Heat Capacity

1400 J/kg-K 0.33 BTU/lb-°F

Thermal Conductivity

0.17 W/m-K 0.1 BTU/h-ft-°F

Thermal Diffusivity

0.090 m2/s

Thermal Expansion

160 µm/m-K

Other Material Properties


1.4 g/cm3 85 lb/ft3

Dielectric Constant (Relative Permittivity) At 1 Hz


Dielectric Strength (Breakdown Potential)

20 kV/mm 0.78 V/mil

Electrical Dissipation At 1 Hz


Electrical Resistivity Order of Magnitude

11 10x Ω-m

Limiting Oxygen Index (LOI)

44 %

Water Absorption After 24 Hours

0.45 %

Followup Questions

Further Reading

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

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

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