| About |
|---|
| Bayflex XGT-140 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. The extended gel time of Bayflex XGT-140 system 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. As with any product, use of the Bayflex XGT-140 system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.&& |
| 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 | 1.04 | g/cm³ | ASTM D792 , ASTM D1622 |
| Shrinkage rate | |||
| MD：3.2 mm | 0.85 | % | Internal Method |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile strain | |||
| Fracture, 3.18 mm | 80 | % | ASTM D638 |
| Fracture, 3.18 mm | 80 | % | ASTM D412 |
| tear strength | |||
| 3.18 mm | 123 | kN/m | ASTM D624 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 3.2mm | 240 | J/m | ASTM D256 |
| Dart impact equipped with measuring instruments | ASTM D3763 | ||
| -30℃，3.18 mm | 3.39 | J | ASTM D3763 |
| 23℃，3.18 mm | 33.9 | J | ASTM D3763 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Heat Sag（4 in Overhang，121℃，3.18 mm） | 1.50 | cm | ASTM D3769 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw D, 3.18 mm | 71 | ASTM D2240 | |
| tensile strength | |||
| Fracture, 3.18 mm | 29.0 | MPa | ASTM D412 |
| Fracture, 3.18 mm | 29.0 | MPa | ASTM D638 |
| Bending modulus | ASTM D790 | ||
| -30℃，3.18 mm | 1790 | MPa | ASTM D790 |
| 23℃，3.18 mm | 965 | MPa | ASTM D790 |
| 65℃，3.18 mm | 345 | MPa | ASTM D790 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed, 3.2 mm | 55.0 | ℃ | ASTM D648 |
| Linear coefficient of thermal expansion | |||
| MD：3.2 mm | 1.1E-4 | 1/℃ | ASTM D696 |
| Thermosetting components | |||
| Component A | 按重量计算的混合比: 160, 按容量计算的混合比: 140 | ||
| Component B | 按重量计算的混合比: 100, 按容量计算的混合比: 100 | ||
| stripping time | 2.0 to 3.0 | 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. 1 hr |
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