| Appearance | | Transparent, | | | | | Visual |
| | no extraneous matter. | | | | | Inspection |
| Density, g/cm3 | | 1.09～ | 1.12～ | 1.14～ | 1.17～ | 1.18～ | ASTM D792 |
| | 1.15 | 1.18 | 1.2 | 1.23 | 1.25 | |
| Curing | Hardness, Shore A | 40±2 | 50±2 | 60±2 | 70±2 | 80±2 | ASTM D2240 |
| Tensile Strength, MPa ≥ | 8 | 8.5 | | | 8 | ASTM D412 |
| Elongation at Break, % ≥ | 500 | 400 | | 300 | 200 | |
| Tension Set, % ≤ | 10 | | | | | |
| Tear Strength , Die C kN/m ≥ | 20 | 25 | | | 20 | ASTM D624 |
| Post-curing | Hardness, Shore A | 45±2 | 57±2 | 68±2 | 76±2 | 85±2 | ASTM D2240 |
| Tensile Strength, MPa ≥ | 7.5 | 8 | | | 7 | ASTM D412 |
| Elongation at Break, % ≥ | 400 | 350 | | 260 | 150 | |
| Tear Strength, Die C kN/m | 18 | | | | 16 | ASTM D624 |
| ≥ | | | | | | |
| Compression Set, 180℃*22h ≤ | | 45 | 35 | | | 30 | ASTM D395 |
| Rebound Resilience, % ≥ | | 50 | | 45 | | 40 | / |
| Volume Resistivity, Ω ▪cm ≥ | | 1×10 15 | | | | | IEC 60093 |
| Dielectric Strength, kV/mm ≥ | | 20 | | | | | IEC 60243 |
