| Property | Specification | Typical Value |
| Structure | — | Linear |
| Polystyrene Content，wt% | 28.0～32.0 | 30 |
| Volatile Matter，wt% | ≤1.0 | 0.55 |
| Ash，wt% | ≤0.20 | 0.08 |
| Tensile Strength，Mpa | ≥16.0 | 25 |
| 300% Modulus，Mpa | ≥2.2 | 2.8 |
| Elongation at Break，% | ≥700 | 800 |
| Permanent set after break，% | ≤40 | 14 |
| Hardness,shore A | ≥68 | 74 |
| Melt Flow Rate，g/10min（200℃/5kg） | 0.01～0.50 | 0.05 |
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