PMP vs. CAP
Both PMP and CAP are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.
For each property being compared, the top bar is PMP and the bottom bar is CAP.
Metric UnitsUS Customary Units
Mechanical Properties
| Elongation at Break, % | 30 | |
| 35 to 50 |
| Tensile Strength: Ultimate (UTS), MPa | 24 | |
| 28 to 45 |
Thermal Properties
| Glass Transition Temperature, °C | 30 | |
| 190 |
| Specific Heat Capacity, J/kg-K | 1750 | |
| 1480 |
| Thermal Conductivity, W/m-K | 0.17 | |
| 0.25 |
| Thermal Expansion, µm/m-K | 120 | |
| 14 |
Electrical Properties
| Dielectric Strength (Breakdown Potential), kV/mm | 28 | |
| 15 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 14 | |
| 16 |
Otherwise Unclassified Properties
| Density, g/cm3 | 0.83 | |
| 1.2 |
| Refractive Index | 1.5 | |
| 1.5 |
Common Calculations
| Strength to Weight: Axial, points | 8.0 | |
| 6.5 to 10 |
| Strength to Weight: Bending, points | 22 | |
| 17 to 23 |
| Thermal Diffusivity, mm2/s | 0.12 | |
| 0.14 |