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Specialty Compounds RTP Company

Covestro Baydur® 742 IBS Polyurethane Structural Foam RIM, Density 41 pcf
Categories: Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane Foam, Unreinforced

Material Notes: Characterization: Baydur 742 IBS is a semirigid polyurethane structural foam system used in the reaction injection molding (RIM) process.

Properties / Applications: Baydur 742 IBS is a semirigid polyurethane structural foam system used in the reaction injection molding (RIM) process. This system incorporates a specially engineered interactive blowing system (IBS) and is supplied as two reactive liquid components. Component A is a modified polymeric diphenylmethane diisocyanate (PMDI) prepolymer blend, and Component B is a formulated polyol system containing no CFC- or HCFC-blowing additives. Baydur 742 IBS system is used in the consumer products market for applications requiring some protective cushioning characteristics. The system is typically molded at medium-to-high densities. As with any product, use of the Baydur 742 IBS system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.

Information provided by Covestro

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Physical PropertiesMetricEnglishComments
Specific Gravity 0.660 g/cc0.660 g/ccASTM D792
Linear Mold Shrinkage 0.0090 - 0.011 cm/cm0.0090 - 0.011 in/in
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 4949ASTM D2240
Tensile Strength at Break 9.31 MPa1350 psiASTM D638
Elongation at Break 137 %137 %ASTM D638
Flexural Strength 10.1 MPa1460 psiASTM D790
Flexural Modulus 0.183 GPa26.5 ksiASTM D790
Charpy Impact Unnotched NBNB

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PCOVEST0097 / 201880

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