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Covestro Bayflex® XGT-2 Polyurethane System, 50% BaSO4 Filled
Categories: Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Solid RIM

Material Notes: Characterization: Bayflex XGT 2 is an elastomeric polyurethane system used in the reaction injection molding (RIM) process.

Properties / Applications: Bayflex XGT 2 is an elastomeric polyurethane system used in the reaction injection molding (RIM) process. The system is supplied as two liquid components: Component A is a modified diphenylmethane diisocyanate (MDI), and Component B is a polyether polyol system. The extended gel time of Bayflex XGT 2 gives equipment designers the flexibility to create large, complex parts that can be molded on existing injection machinery. The resin ’s soft feel and the ability to tailor part density through the addition of barium sulfate make this product ideal for applications that require some level of sound absorption, such as floor coverings in heavy trucks or equipment. In addition, the material is soft enough to be used for producing seals, gaskets and wire harness type applications. As with any product, use of the Bayflex XGT 2 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 PropertiesOriginal ValueComments
Specific Gravity 1.21 g/ccIsocyanate (Component A)
 1.66 g/ccASTM D1622
 1.86 g/ccPolyol (Component B)
Viscosity 700 cPIsocyanate (Component A)
 8000 cPPolyol (Component B)
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore A 78
@Time 5.00 sec
ASTM D2240
 80
@Time 1.00 sec
ASTM D2240
Tensile Strength at Break 5.00 MPaperpendicular, 20 in/min, Die C; ASTM D412
 5.10 MPaparallel, 20 in/min, Die C; ASTM D412
 5.82 MPa
@Treatment Temp. 70.0 °C,
Time 252000 sec
perpendicular, 20 in/min, Die C; ASTM D412
 5.87 MPa
@Treatment Temp. 70.0 °C,
Time 252000 sec
parallel, 20 in/min, Die C; ASTM D412
Elongation at Break 247 %perpendicular, 20 in/min, Die C; ASTM D412
 248 %parallel, 20 in/min, Die C; ASTM D412
 268 %
@Treatment Temp. 70.0 °C,
Time 252000 sec
parallel, 20 in/min, Die C; ASTM D412
 282 %
@Treatment Temp. 70.0 °C,
Time 252000 sec
perpendicular, 20 in/min, Die C; ASTM D412
Tear Strength 24.2 pliparallel, Split Tear; ASTM D624
 30.1 pliperpendicular, Split Tear; ASTM D624
 94.3 pliparallel, Die C; ASTM D624
 97.9 pliperpendicular, Die C; ASTM D624
Compression Set 26.5 %25% deflection; ASTM D3395
 
Thermal PropertiesOriginal ValueComments
Flash Point 114 °CPolyol (Component B)
 213 °CIsocyanate (Component A)
 
Processing PropertiesOriginal ValueComments
Mold Temperature 66.0 - 77.0 °C
Moisture Content <= 0.90 %Polyol (Component B)
 
Descriptive Properties
Content22.6-23.1%NCO, Isocyanate (Component A)

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 go back to viewing the property data in MatWeb's normal format.

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PCOVEST0136 / 201919

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