UPVC vs. EVA

Both uPVC and EVA are thermoplastics. There are 16 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is uPVC and the bottom bar is EVA.

Unplasticized (Rigid) Polyvinyl Chloride (uPVC, PVC-U)Ethylene Vinyl Acetate (EVA)

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		3.7
Elastic (Young's, Tensile) Modulus, GPa		0.015 to 0.080

Elongation at Break, %		58
Elongation at Break, %		300 to 800

Tensile Strength: Ultimate (UTS), MPa		47
Tensile Strength: Ultimate (UTS), MPa		3.0 to 35

Thermal Properties

Maximum Temperature: Decomposition, °C		270
Maximum Temperature: Decomposition, °C		450

Melting Onset (Solidus), °C		180
Melting Onset (Solidus), °C		55 to 95

Specific Heat Capacity, J/kg-K		880
Specific Heat Capacity, J/kg-K		1400

Thermal Conductivity, W/m-K		0.16
Thermal Conductivity, W/m-K		0.34

Vicat Softening Temperature, °C		83
Vicat Softening Temperature, °C		45 to 80

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz		3.4
Dielectric Constant (Relative Permittivity) At 1 Hz		2.8

Dielectric Strength (Breakdown Potential), kV/mm		19
Dielectric Strength (Breakdown Potential), kV/mm		21

Otherwise Unclassified Properties

Density, g/cm³		1.4
Density, g/cm³		0.93 to 1.0

Common Calculations

Stiffness to Weight: Axial, points		1.5
Stiffness to Weight: Axial, points		0.0087 to 0.048

Stiffness to Weight: Bending, points		37
Stiffness to Weight: Bending, points		8.6 to 15

Strength to Weight: Axial, points		9.1
Strength to Weight: Axial, points		0.87 to 10

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		4.8 to 26

Thermal Diffusivity, mm²/s		0.13
Thermal Diffusivity, mm²/s		0.25 to 0.26