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Specialty Compounds RTP Company

Covestro Bayflex® 110-35 IMR Urethane Elastomer
Categories: Polymer; Thermoset; Polyurethane, TS

Material Notes: Characterization: Bayflex 110-35 IMR system produces a solid urethane elastomer which has a flexural modulus of approximately 33,500 psi* at room temperature.

Properties / Applications: Bayflex 110-35 IMR system produces a solid urethane elastomer which has a flexural modulus of approximately 33,500 psi* at room temperature. This system is used to provide multiple releases of large reaction injection molding (RIM) parts, such as automotive fascias. The system contains internal mold release (IMR) and is used with milled glass fiber or mineral reinforcements. Bayflex 110-35 IMR is a formulated RIM system supplied as two liquid components. Component A is a diphenylmethane diisocyanate (MDI) prepolymer, and Component B is a polyether polyol system. As with any product, use of the Bayflex 110-35 IMR system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.04 g/cc1.04 g/ccASTM D792
 1.10 g/cc1.10 g/ccPolyol (Component B)
 1.21 g/cc1.21 g/ccIsocyanate (Component A)
Viscosity 125 cP125 cPPolyol (Component B)
 700 cP700 cPIsocyanate (Component A)
Linear Mold Shrinkage 0.013 cm/cm0.013 in/in
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 24.1 MPa3500 psiASTM D638/ASTM D412
Elongation at Break 135 %135 %ASTM D638/ASTM D412
Flexural Modulus  0.352 GPa
@Temperature 65.0 °C
51.1 ksi
@Temperature 149 °F
ASTM D412
 0.552 GPa
@Temperature 23.0 °C
80.1 ksi
@Temperature 73.4 °F
ASTM D412
 1.38 GPa
@Temperature -30.0 °C
200 ksi
@Temperature -22.0 °F
ASTM D412
Izod Impact, Notched 2.67 J/cm5.00 ft-lb/inASTM D624
Tear Strength 82.4 kN/m470 pliDie C
 
Thermal PropertiesMetricEnglishComments
CTE, linear 110 µm/m-°C61.0 µin/in-°FASTM D696
Flash Point 160 °C320 °FPolyol (Component B)
 213 °C415 °FIsocyanate (Component A)
 
Processing PropertiesMetricEnglishComments
Mold Temperature 66.0 °C151 °F
 
Descriptive Properties
AppearanceLight yellow to yellow liquidIsocyanate (Component A)
 Pale yellow liquidPolyol (Component B)

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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