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Elmet Technologies

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

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

Properties / Applications: Bayflex XGT-2DP 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-2DP 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-2DP 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 1.21 g/cc1.21 g/ccIsocyanate (Component A)
 1.66 g/cc1.66 g/ccASTM D1622
 1.86 g/cc1.86 g/ccPolyol (Component B)
Viscosity 700 cP700 cPIsocyanate (Component A)
 8000 cP8000 cPPolyol (Component B)
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A  78
@Time 5.00 sec
78
@Time 0.00139 hour
ASTM D2240
 80
@Time 1.00 sec
80
@Time 0.000278 hour
ASTM D2240
Tensile Strength at Break 5.00 MPa725 psiperpendicular, 20 in/min, Die C; ASTM D412
 5.10 MPa740 psiparallel, 20 in/min, Die C; ASTM D412
 5.87 MPa
@Treatment Temp. 70.0 °C,
Time 252000 sec
851 psi
@Treatment Temp. 158 °F,
Time 70.0 hour
parallel, 20 in/min, Die C; ASTM D412
 8.82 MPa
@Treatment Temp. 70.0 °C,
Time 252000 sec
1280 psi
@Treatment Temp. 158 °F,
Time 70.0 hour
perpendicular, 20 in/min, Die C; ASTM D412
Elongation at Break 247 %247 %perpendicular, 20 in/min, Die C; ASTM D412
 248 %248 %parallel, 20 in/min, Die C; ASTM D412
 268 %
@Treatment Temp. 70.0 °C,
Time 252000 sec
268 %
@Treatment Temp. 158 °F,
Time 70.0 hour
parallel, 20 in/min, Die C; ASTM D412
 282 %
@Treatment Temp. 70.0 °C,
Time 252000 sec
282 %
@Treatment Temp. 158 °F,
Time 70.0 hour
perpendicular, 20 in/min, Die C; ASTM D412
Tear Strength 4.24 kN/m24.2 pliparallel, Split Tear; ASTM D624
 5.28 kN/m30.1 pliperpendicular, Split Tear; ASTM D624
 16.5 kN/m94.3 pliparallel, Die C; ASTM D624
 17.2 kN/m97.9 pliperpendicular, Die C; ASTM D624
 
Thermal PropertiesMetricEnglishComments
Flash Point 114 °C237 °FPolyol (Component B)
 213 °C415 °FIsocyanate (Component A)
 
Processing PropertiesMetricEnglishComments
Mold Temperature 66.0 - 77.0 °C151 - 171 °F
Moisture Content <= 0.90 %<= 0.90 %Polyol (Component B)
 
Descriptive Properties
Content22.6-23.1%NCO, Isocyanate (Component A)

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PCOVEST0138 / 201921

Ensinger PEI

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