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Specialty Compounds RTP Company

Covestro Bayflex® 110-50 Urethane Elastomer, 24% Mineral Filled
Categories: Polymer; Thermoset; Polyurethane, TS

Material Notes: Characterization: Bayflex 110-50 system produces a solid urethane elastomer which has a flexural modulus of approximately 50,000 psi* at room temperature.

Properties / Applications: The Bayflex 110-50 system produces a solid urethane elastomer which has a flexural modulus of approximately 50,000 psi* at room temperature. This system can be used with or without milled glass fiber or mineral reinforcements. The Bayflex 110-50 system is used in applications requiring excellent impact properties such as automotive fascias, agricultural and construction equipment, specialty vehicles and recreational equipment. The Bayflex 110-50 system is a formulated elastomeric reaction injection molding (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 110-50 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 1.03 g/cc1.03 g/ccPolyol (Component B)
 1.19 g/cc1.19 g/ccASTM D792
 1.21 g/cc1.21 g/ccIsocyanate (Component A)
Viscosity 700 cP700 cPIsocyanate (Component A)
 1300 cP1300 cPPolyol (Component B)
Linear Mold Shrinkage 0.0034 cm/cm0.0034 in/in
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 18.6 MPa2700 psiASTM D412
Elongation at Break 96 %96 %ASTM D412
Flexural Modulus  0.648 GPa
@Temperature 65.0 °C
94.0 ksi
@Temperature 149 °F
ASTM D412
 1.07 GPa
@Temperature 23.0 °C
155 ksi
@Temperature 73.4 °F
ASTM D412
 2.28 GPa
@Temperature -30.0 °C
331 ksi
@Temperature -22.0 °F
ASTM D412
Izod Impact, Notched 2.40 J/cm4.50 ft-lb/inASTM D624
Tear Strength 117 kN/m665 pliDie C; ASTM D624
 
Thermal PropertiesMetricEnglishComments
CTE, linear 50.4 µm/m-°C28.0 µin/in-°FASTM D696
Flash Point 174 °C345 °FPolyol (Component B)
 213 °C415 °FIsocyanate (Component A)
 
Processing PropertiesMetricEnglishComments
Mold Temperature 60.0 - 70.0 °C140 - 158 °F
 
Descriptive Properties
AppearanceDark amber viscous liquidPolyol (Component B)
 Light yellow to yellow liquidIsocyanate (Component A)

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