| Model | Appearance | Hardness | Tensile Strength | Elongation at Break | Tension Set | Tear Strength | Volume Resistivity |
| JW-1440 | milk-white | 40±2 | 6.0 | 450 | 12 | 15 | 1×10^12 |
| JW-1450 | milk-white | 50±2 | 7.0 | 350 | 12 | 20 | 1×10^12 |
| JW-1460 | milk-white | 60±2 | 7.0 | 300 | 12 | 20 | 1×10^12 |
| JW-1470 | milk-white | 70±2 | 6.5 | 200 | 12 | 16 | 1×10^12 |