| Compound | NR/BR blend | ENR-25/BR blend | ||||
|---|---|---|---|---|---|---|
| NR/BR/CB-C (5:30) | NR/BR/CB-C (11:00) | NR/BR/CB-Y | ENR/BR/silica-C (7:30) | ENR/BR/silica-C (15:00) | ENR/BR/silica-Y | |
| M100 (kgf/cm2) | 21 | 23 | 23 | 21 | 23 | 24 |
| M300 (kgf/cm2) | 111 | 122 | 129 | 110 | 114 | 117 |
| Elongation at break (%) | 564 | 558 | 540 | 598 | 581 | 568 |
| Tensile strength (kgf/cm2) | 269 | 276 | 268 | 276 | 270 | 271 |
| Crosslink density (10-5 mol/g) | 8.58 | 8.56 | 8.30 | 11.54 | 11.47 | 10.34 |
| DIN abrasion loss (mg) | 35 | 34 | 32 | 31 | 31 | 28 |