| About |
|---|
| Baydur 641 IBS is a rigid polyurethane structural foam system used in the reaction injection molding (RIM) process. This system is supplied as two reactive liquid components and is typically used with a blowing paste purchased separately. Component A is a polymeric diphenylmethane diisocyanate (PMDI). Component B is a formulated polyol system containing no CFC- or HCFC-blowing additives. The blowing paste is Baydur PU-1731.&& |
| Product Description | |
|---|---|
| Supplier | Covestro |
| Generic | PUR+MDI |
| Material Status | Commercial: Active |
| Features | Good surface appearance,Good Dimensional Stability |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.559 | g/cm³ | ASTM D792 |
| Shrinkage rate | |||
| MD：12.7 mm | 0.30 to 0.50 | % | ASTM D955 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Unnotch Impact strength | 12 | kJ/m² | Internal Method |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shore D, 12.70 mm | 64 | ASTM D2240 | |
| tensile strength | |||
| Fracture, 12.70 mm | 11.7 | MPa | ASTM D638 |
| Tensile strain | |||
| Fracture, 12.70 mm | 8.0 | % | ASTM D638 |
| Bending modulus | |||
| 12.70 mm | 558 | MPa | ASTM D790 |
| bending strength | |||
| 12.70 mm | 23.4 | MPa | ASTM D790 |
| compressive strength | |||
| 12.7 mm | 11.7 | MPa | ASTM D695 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed, 12.7 mm | 75.0 | ℃ | ASTM D648 |
| Thermosetting components | |||
| Component A | 按重量计算的混合比: 110 | ||
| Component B | 按重量计算的混合比: 100 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 0.5 in |
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