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
Price	EMAIL US sales@lookpolymers.com
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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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