Cast Polyurethane (CPU) is a high-performance elastomer known for its excellent wear resistance, flexibility, and mechanical strength. It is widely used in industrial rollers, wheels, seals, mining screens, and shock-absorbing parts. Shijiazhuang Nhcoo Technology Co., Ltd. supplies high-quality MDI-based cast polyurethane systems and prepolymers designed for superior durability and stable processing. Our materials ensure outstanding elasticity, chemical resistance, and long service life, meeting the needs of various industrial applications.
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| Model | NHC 3463 | NHC 1424 | NHC 1425 | NHC 1406 |
| NCO/% | 3.6±0.2 | 4.2±0.2 | 5.2±0.2 | 6.0±0.2 |
| State at 20ºC | Light yellow solid | |||
| MOCA 100g Prepolymer /g | 10.5 | 12 | 14.9 | 17.5 |
| Mixing temperature/ºC(Prepolymer/MOCA) | 80/120 | 80/120 | 80/120 | 80/120 |
| Gel time/min | 8 | 8 | 7.5 | 4 |
| Post vulcanization time(100ºC) /h | 16 | 16 | 16 | 16 |
| Hardness(Shore A) | 80±2 | 88±2 | 92±2 | 94±2 |
| 100% Modulus/MPa | 3.3 | 5.4 | 7.3 | 10.5 |
| 300%Modulus /MPa | 6.1 | 10.6 | 15.6 | 18.7 |
| Tensile strength /MPa | 45 | 45 | 50 | 52 |
| Elongation / % | 550 | 520 | 480 | 450 |
| Tear strength /(KN/m) | 51 | 76 | 99 | 110 |
