| Type | Item | Test conditions | ||
|---|---|---|---|---|
| Room temp. (23°C) | Heat aging (121°C×24hr) | Rate of change (%) | ||
| Bead | Hardness (Hs) | 35 | 38 | +8.57 |
| Tensile strength (MPa) | 12.1 | 12.8 | +5.78 | |
| Elongation (%) | 845 | 809 | -4.26 | |
| Body | Hardness (Hs) | 57 | 61 | +7.01 |
| Tensile strength (MPa) | 20.2 | 22.0 | +8.91 | |
| Elongation (%) | 535 | 487 | -8.97 | |