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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.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.03 g/ccPolyol (Component B)
 1.19 g/ccASTM D792
 1.21 g/ccIsocyanate (Component A)
Viscosity 700 cPIsocyanate (Component A)
 1300 cPPolyol (Component B)
Linear Mold Shrinkage 0.0034 cm/cm
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Ultimate 2700 psiASTM D412
Elongation at Break 96 %ASTM D412
Flexural Modulus 648 MPa
@Temperature 65.0 °C
ASTM D412
 1070 MPa
@Temperature 23.0 °C
ASTM D412
 2280 MPa
@Temperature -30.0 °C
ASTM D412
Izod Impact, Notched 4.50 ft-lb/inASTM D624
Tear Strength 665 pliDie C; ASTM D624
 
Thermal PropertiesOriginal ValueComments
CTE, linear 28.0 µin/in-°FASTM D696
Flash Point 174 °CPolyol (Component B)
 213 °CIsocyanate (Component A)
 
Processing PropertiesOriginal ValueComments
Mold Temperature 60.0 - 70.0 °C
 
Descriptive Properties
AppearanceDark amber viscous liquidPolyol (Component B)
 Light yellow to yellow liquidIsocyanate (Component A)

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