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Bayflex® XGT-140

Polyurethane (Polyether, MDI)

Supplied by Bayer MaterialScience LLC

The technical datasheet with complete property values for Bayflex® XGT-140 is available to members of the Prospector Plastics Database.
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Product Description
Bayflex XGT-140 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. Note: The polyol component phaseseparates upon standing and must be thoroughly mixed via mechanical means prior to use.

The extended gel time of Bayflex XGT-140 system gives equipment designers the flexibility to create large, complex parts that can be molded on existing injection machinery. The resin's excellent surface quality and high impact resistance make it a candidate for agricultural equipment, heavy-duty trucks, specialty transportation, and marine applications.

As with any product, use of Bayflex XGT-140 system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.
General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Features 
  • Good Surface Finish
  • High Impact Resistance
  
Uses 
  • Agricultural Applications
  • Marine Applications
  
Forms 
  • Liquid
Processing Method 
  • Reaction Injection Molding (RIM)
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D792, ASTM D1622
Molding Shrinkage - Flow (0.125 in)
in/in
 Internal Method
Mechanical
Nominal Value
Unit
Test Method
Tensile Strength (Break, 0.125 in)
psi
 ASTM D638
Tensile Elongation (Break, 0.125 in)
%
 ASTM D638
Flexural Modulus
     ASTM D790
-22°F, 0.125 in
psi
  
73°F, 0.125 in
psi
  
149°F, 0.125 in
psi
  
Elastomers
Nominal Value
Unit
Test Method
Tear Strength 2 (0.125 in)
lbf/in
 ASTM D624
Impact
Nominal Value
Unit
Test Method
Notched Izod Impact (0.125 in)
ft·lb/in
 ASTM D256
Instrumented Dart Impact 3
     ASTM D3763
-22°F, 0.125 in
in·lb
  
73°F, 0.125 in
in·lb
  
Hardness
Nominal Value
Unit
Test Method
Durometer Hardness (Shore D, 0.125 in)
 
 ASTM D2240
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load (66 psi, Unannealed, 0.125 in)
°F
 ASTM D648
CLTE - Flow (0.125 in)
in/in/°F
 ASTM D696
Thermoset
Nominal Value
Unit
Test Method
Thermoset Components 4
      
Part A
 
  
Part B
 
  
Shelf Life 5 (86°F)
wk
  
Demold Time
min
  
Additional Information
Nominal Value
Unit
Test Method
Heat Sag - 4 in Overhang 6 (250°F, 0.13 in)
in
 ASTM D3769
Part A
  • Type: Isocyanate
  • Appearance: Water white to clear pale yellow liquid
  • Specific Gravity @ 25°C: 1.21
  • Viscosity @25°C: 750 mPa-s
  • Flash Point PMCC: 213 °C
  • NCO: 22.8 %

Part B
  • Type: Polyol
  • Appearance: Viscous liquid
  • Specific Gravity @ 25°C: 1.04
  • Viscosity @25°C: 550 mPa-s
  • Flash Point PMCC: 110 °C
  • Water: 0.08 wt%
  • Hydroxyl Number: 465 mg KOH/g

Molding Parameters
  • Material Temperature: 32 to 38 °C
  • Mold Temperature: 60 to 70 °C
  • Polyol Nucleation - Specific Gravity: 0.75 to 0.80 0
  • shot time: 11 to 12 sec
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Bayflex® XGT-140, Bayflex XGT140, Bayflex® , Bayflex, BayflexXGT140, XGT, XGT-140, XGT140, XGT:140, XGT/140, XGT+140, XGT_140, XGT 140, 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, 140XGT
Features
Features may also be described by the following terms: High Impact Resistance, Good Surface Finish.
Notes
1Typical properties: these are not to be construed as specifications.
2Die C
37.33 ft/sec
41.05 Index
50.125 in
61 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.