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 |