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Covestro Baydur® 726 IBS Polyurethane Structural Foam RIM, Density 40 pcf, MDI-based 2-Component Liquid System
| Category | Other Engineering Material , Composite Core Material , Polymer , Thermoset , Polyurethane, TS , Thermoset Polyurethane Foam, Unreinforced |
| Manufacturer | Covestro |
| Trade Name | Baydur® |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Covestro Baydur® 726 IBS Polyurethane Structural Foam RIM, Density 40 pcf, MDI-based 2-Component Liquid System.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
0.25 in. thickness. IBS = Interactive Blowing System RIM = Reaction Injection MoldingInformation provided by Bayer Corporation, Polyurethanes DivisionAs of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 0.640 g/cc | 0.0231 lb/in³ | ASTM D792 |
| Apparent Bulk Density | 0.640 g/cc | 0.0231 lb/in³ | ASTM D792 |
| Linear Mold Shrinkage | 0.0070 - 0.0090 cm/cm | 0.0070 - 0.0090 in/in | Bayer Test |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Hardness, Shore D | 66 | 66 | ASTM D2240 |
| Tensile Strength, Ultimate | 21.0 MPa | 3050 psi | ASTM D638/D412 |
| Elongation at Break | 8.0 % | 8.0 % | ASTM D638/D412 |
| Flexural Yield Strength | 39.0 MPa | 5660 psi | ASTM D790 |
| Flexural Modulus | 1.12 GPa | 162 ksi | ASTM D790 |
| Compressive Yield Strength | 28.0 MPa | 4060 psi | ASTM D395 |
| Charpy Impact, Notched | 1.70 J/cm² | 8.09 ft-lb/in² | Bayer Test |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 79.0 µm/m-°C @Temperature 20.0 °C |
43.9 µin/in-°F @Temperature 68.0 °F |
ASTM D696 |
| Deflection Temperature at 0.46 MPa (66 psi) | 83.0 °C | 181 °F | ASTM D648 |
| Flammability, UL94 | 5VA @Thickness 6.35 mm |
5VA @Thickness 0.250 in |
UL94 |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Electrical Resistivity | 2.90e+14 ohm-cm | 2.90e+14 ohm-cm | ASTM D257 |
| Surface Resistance | 1.00e+15 ohm | 1.00e+15 ohm | ASTM D257 |
| Dielectric Constant | 2.69 @Frequency 1e+6 Hz |
2.69 @Frequency 1e+6 Hz |
ASTM D150 |
| Dielectric Strength | 13.0 kV/mm | 330 kV/in | ASTM D149 |
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