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Bayflex® 120-50

Polyurethane (Polyether, MDI)

Supplied by Bayer MaterialScience LLC

The technical datasheet with complete property values for Bayflex® 120-50 is available to members of the Prospector Plastics Database.
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Product Description
Bayflex 120-50 is a polyurea RIM system designed to provide increased productivity compared to the typical amine-extended urethane systems. Bayflex 120-50 polyurea is recommended for applications such as automotive fascia, side moldings, exterior trim panels, wheel well flares, etc. Faster cure time, less frequent application of external mold release agent, and reduced mold cleaning are possible, providing increased productivity. (A 40% increase in parts per shift has been observed in test applications.) The Bayflex 120-50 polyurea system also provides a superior property profile compared to amine-extended urethane systems, with better dimensional stability and part appearance.

Reinforcements, such as milled glass fibers, wollastonite, and Bayer's proprietary DOI filler can be used for further improvement in overall dimensional stability. As with any product, use of the Bayflex 120-50 polyurea system in a given application must be tested (including field testing, etc.) in advance bythe user to determine suitability.

Bayflex 120-50 is a formulated reaction injection molding system (RIM) supplied as two liquid components. Component A is a diphenylmethane diisocyanate (MDI) prepolymer and Component B is a polyether amine.
General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Features 
  • Good Dimensional Stability
  • Pleasing Surface Appearance
  
Uses 
  • Automotive Applications
  • Automotive Exterior Parts
  • Automotive Exterior Trim
  • Fascias
  
Forms 
  • Liquid
Processing Method 
  • Reaction Injection Molding (RIM)
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D1622
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength (Break)
psi
 ASTM D638
Tensile Elongation (Break)
%
 ASTM D638
Flexural Modulus (73°F)
psi
 ASTM D790
Elastomers
Nominal Value
Unit
Test Method
Tensile Strength (Break)
psi
 ASTM D412
Tensile Elongation (Break)
%
 ASTM D412
Tear Strength 2
lbf/in
 ASTM D624
Impact
Nominal Value
Unit
Test Method
Notched Izod Impact
ft·lb/in
 ASTM D256
Thermoset
Nominal Value
Unit
Test Method
Thermoset Components
      
Part A
 
  
Part B
 
  
Demold Time
min
  
Additional Information
Nominal Value
Unit
Test Method
Heat Sag - 6 in Overhang 3 (250°F)
in
 ASTM D3769
Part A
  • Type: Isocyanate
  • Appearance: Dark brown liquid
  • Specific Gravity @ 25°C: 1.13
  • Viscosity @25°C: 550 mPa-s
  • Flash Point PMCC: 204 °C

Part B
  • Type: Polyol
  • Appearance: Pale yellow to tan liquid
  • Specific Gravity @ 25°C: 1.05
  • Viscosity @25°C: 750 mPa-s
  • Flash Point PMCC: 174 °C

Molding Parameters
  • Material Temperature - Component A: 38 to 49 °C
  • Material Temperature - Component B: 38 to 49 °C
  • Mold Temperature: 66 °C
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Bayflex® 120-50, Bayflex 12050, Bayflex® , Bayflex, Bayflex12050, 120, 120-50, 12050, 120:50, 120/50, 120+50, 120_50, 120 50, Polyurethane, Polyurethane (Polyether, MDI), Polyurethane Polyether MDI, PUR-Ether/MDI, PUREtherMDI, PUR-Ether:MDI, PUR-Ether+MDI, PUR-Ether-MDI, PUR-Ether_MDI, PUR-Ether MDI, PUR:Ether/MDI, PUR/Ether/MDI, PUR+Ether/MDI, PUR_Ether/MDI, PUR Ether/MDI, PUR, Bayer, PolyurethanePolyetherMDI, PUREther_MDI, PUREther MDI, PUR_EtherMDI, PUR EtherMDI, 50120
Features
Features may also be described by the following terms: Pleasing Surface Appearance, Good Dimensional Stability, Dimensionally Stable.
Uses
Uses may also be described by the following terms: Automotive Applications, Automotive Sector.
Notes
1Typical properties: these are not to be construed as specifications.
2Die C
31 hr
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.