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Covestro Baydur® 726 IBS Polyurethane Structural Foam RIM, Density 55 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 Shanghai 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 55 pcf, MDI-based 2-Component Liquid System.pdf
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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 0.880 g/cc
0.0318 lb/in³
ASTM D792
Apparent Bulk Density 0.880 g/cc
0.0318 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 81
81
ASTM D2240
Tensile Strength, Ultimate 33.0 MPa
4790 psi
ASTM D638/D412
Elongation at Break 8.0 %
8.0 %
ASTM D638/D412
Flexural Yield Strength 62.0 MPa
8990 psi
ASTM D790
Flexural Modulus 1.68 GPa
244 ksi
ASTM D790
Compressive Yield Strength 41.0 MPa
5950 psi
ASTM D395
Charpy Impact, Notched 3.20 J/cm²
15.2 ft-lb/in²
Bayer Test
Thermal Properties Metric English Comments
CTE, linear 90.0 µm/m-°C

@Temperature 20.0 °C
50.0 µin/in-°F

@Temperature 68.0 °F
ASTM D696
Deflection Temperature at 0.46 MPa (66 psi) 100 °C
212 °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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