Silicone Plastic vs. EVA
Silicone plastic belongs to the thermoset plastics classification, while EVA belongs to the thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is silicone plastic and the bottom bar is EVA.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 9.0 | |
| 0.015 to 0.080 |
| Tensile Strength: Ultimate (UTS), MPa | 38 | |
| 3.0 to 35 |
Thermal Properties
| Maximum Temperature: Decomposition, °C | 480 | |
| 450 |
| Specific Heat Capacity, J/kg-K | 850 | |
| 1400 |
| Thermal Conductivity, W/m-K | 0.35 | |
| 0.34 |
Electrical Properties
| Dielectric Strength (Breakdown Potential), kV/mm | 30 | |
| 21 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.9 | |
| 0.93 to 1.0 |
Common Calculations
| Stiffness to Weight: Axial, points | 2.6 | |
| 0.0087 to 0.048 |
| Stiffness to Weight: Bending, points | 36 | |
| 8.6 to 15 |
| Strength to Weight: Axial, points | 5.5 | |
| 0.87 to 10 |
| Strength to Weight: Bending, points | 13 | |
| 4.8 to 26 |
| Thermal Diffusivity, mm2/s | 0.22 | |
| 0.25 to 0.26 |