| About |
|---|
| Bayflex XGT-80 is an elastomeric polyurethane system used in the reaction injection molding (RIM) process. The system is supplied as two liquid components: Component A is a modified diphenylmethane diisocyanate (MDI), and Component B is a polyether polyol system. Note: The polyol component phase-separates upon standing and must be thoroughly mixed via mechanical means prior to use. The extended gel time of Bayflex XGT-80 gives equipment designers the flexibility to create large, complex parts that can be molded on existing injection machinery. The resin’s excellent surface quality and high impact resistance make it a candidate for agricultural equipment, heavy-duty trucks, specialty transportation, and marine applications.&& |
| Product Description | |
|---|---|
| Supplier | Covestro |
| Generic | PUR-脂肪族+MDI |
| Material Status | Commercial: Active |
| Features | Good surface appearance,High impact resistance |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.15 | g/cm³ | ASTM D792 , ASTM D1622 |
| Shrinkage rate | |||
| MD：3.2 mm | 0.55 to 0.65 | % | Internal Method |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tear strength | |||
| 3.18 mm | 114 | kN/m | ASTM D624 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 3.2mm | 270 | J/m | ASTM D256 |
| Dart impact equipped with measuring instruments | ASTM D3763 | ||
| -30℃，3.18 mm | 2.71 | J | ASTM D3763 |
| 23℃，3.18 mm | 7.73 | J | ASTM D3763 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Heat Sag（4 in Overhang，121℃，3.18 mm） | 9.91 | mm | ASTM D3769 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw D, 3.18 mm | 70 | ASTM D2240 | |
| tensile strength | |||
| Fracture, 3.18 mm | 26.2 | MPa | ASTM D638 |
| Tensile strain | |||
| Fracture, 3.18 mm | 75 | % | ASTM D638 |
| Bending modulus | ASTM D790 | ||
| -30℃，3.18 mm | 1930 | MPa | ASTM D790 |
| 23℃，3.18 mm | 1170 | MPa | ASTM D790 |
| 70℃，3.18 mm | 538 | MPa | ASTM D790 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Linear coefficient of thermal expansion | |||
| MD：3.2 mm | 5.6E-5 | 1/℃ | ASTM D696 |
| Thermosetting components | |||
| Component A | 按重量计算的混合比: 140, 按容量计算的混合比: 120 | ||
| Component B | 按重量计算的混合比: 100, 按容量计算的混合比: 100 | ||
| Storage period | |||
| 32℃ | 26 | wk | |
| stripping time | 1.5 | min |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Die C |
| 3. 7.33 ft/sec |
| 4. 1.05 Index |
| 5. 0.125 in |
| 6. 1 hr |
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