| Compounds | NR / CB | NR / BR / CB | ENR-25 / BR / Silica | ||
|---|---|---|---|---|---|
| Ref. | NB20 | NB30 | EB20 | EB30 | |
| M100%(kgf/cm2) | 20.1 | 20.9 | 21.9 | 24.3 | 23.5 |
| M300%(kgf/cm2) | 108.6 | 112.6 | 113.1 | 100.2 | 93.5 |
| Elongation at break (%) | 580 | 570 | 570 | 630 | 660 |
| Tensile strength (kgf/cm2) | 266 | 270 | 269 | 274 | 266 |
| Crosslink density (10-5 mol/g) | 7.21 | 8.16 | 8.60 | 11.48 | 11.07 |
| DIN abrasion loss (mg) | 90.3 | 46.3 | 31.7 | 45.5 | 28.7 |