| Appearance | | Transparent , no extraneous matter. | | | | | | Visual Inspection |
| Density, g/cm3 | | 1.06～ 1.10 | 1.09～ 1.15 | 1.12～ 1.18 | 1.14～ 1.20 | 1.17～ 1.23 | 1.18～ 1.25 | ASTM D792 |
| Curing | Hardness, Shore A | 30±2 | 40±2 | 46±2 | 60±2 | 66±2 | 80±2 | ASTM D2240 |
| Tensile Strength, MPa ≥ | 8.5 | 9.0 | 10.0 | | | 8.5 | ASTM D412 |
| Elongation at Break, % ≥ | 700 | 600 | 500 | 480 | 450 | 300 | |
| Tension Set, % ≤ | 10 | | | | | | |
| Tear Strength, Die B kN/m ≥ | 13 | 14 | 16 | 17 | 20 | 16 | ASTM D624 |
| Post- curing | Hardness, Shore A | 33±2 | 43±2 | 49±2 | 63±2 | 69±2 | 84±2 | ASTM D2240 |
| Tensile Strength, MPa ≥ | 7.5 | 8.0 | 9.5 | | | 8.0 | ASTM D412 |
| Elongation at Break, % ≥ | 650 | 550 | 450 | 400 | 350 | 240 | |
| Tear Strength, Die B kN/m ≥ | 10 | 11 | 13 | | | | ASTM D624 |
| Compression Set, 180℃*22h ≤ | | 40 | 35 | | | | | ASTM D395 |
| Rebound Resilience, % ≥ | | 50 | 45 | | | 46 | | / |
| Volume Resistivity, Ω ▪cm ≥ | | 1×10 15 | | | | | | IEC 60093 |
| Dielectric Strength, kV/mm ≥ | | 20 | 21 | | | | | IEC 60243 |
