YF – YL Product Systems
Designed for manufacturing shoe sole and insole
| Typical processing parameter | |
| Isocyanate type | MDI |
| Mixing ratio Polyol/Isocyanate (part by weight) | 100 / 91 |
| Chemical temperature (°C) | 18~22 |
| Mold temperature (°C) | 38~40 |
| Machine type | Low pressure machine |
| Cream time (second) | 20~23 |
| Gel time (second) | 100~110 |
| Rise time (second) | 200~220 |
| Free rise density (kg/m3) | 75~85 |
| Demold time (minute) | 25~30 |
| Physical property | Test method | Unit | Specification |
| Density | DIN 53479 | g/cm3 | 0.085~0.110 |
| Hardness | DIN 53505 | Asker C | 24~27 |
| Tensile strength | DIN 53504 | Kgf/cm2 | ≥ 3.0 |
| Tear strength | DIN 53504 | Kgf/cm | ≥ 2.0 |
| Elongation | DIN 53504 | % | ≥ 100 |
| Compression set | ASTM D395-D | % | ≤ 15 |
| Typical processing parameter | |
| Isocyanate type | MDI |
| Mixing ratio Polyol/Isocyanate (part by weight) | 100 / 50~55 |
| Viscosity at 25°C (mPas) | 18~22 |
| Polyol | 1,100±500 |
| Isocyanate | 1,000±150 |
| Chemical temperature (°C) | 30~40 |
| Cream time (second) | 6~10 |
| Gel time (second) | 60~70 |
| Rise time (second) | 105~115 |
| Free rise density (kg/m3) | 0.08~0.10 |
| Physical property | Test method | Unit | Specification |
| Density (core) | DIN 53479 | g/cm3 | 0.30~0.32 |
| Hardness | DIN 53505 | Asker C | 30~40 |
| Tensile strength | DIN 53504 | Kgf/cm2 | ≥ 6.0 |
| Tear strength | DIN 53504 | Kgf/cm | ≥ 4.0 |
| Elongation | DIN 53504 | % | ≥ 130 |
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