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Bayflex® XGT-2

Polyurethane (MDI)

Supplied by Bayer MaterialScience LLC

The technical datasheet with complete property values for Bayflex® XGT-2 is available to members of the Prospector Plastics Database.
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Product Description
Bayflex XGT 2 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 phase-separates upon standing and must be thoroughly mixed via mechanical means prior to use.

The extended gel time of Bayflex XGT 2 gives equipment designers the flexibility to create large, complex parts that can be molded on existing injection machinery. The resin's soft feel and the ability to tailor part density through the addition of Barium
Sulfate make this product ideal for applications that require some level of sound absorption, such as floor coverings in heavy trucks or equipment. In addition, the material is soft enough to be used for producing seals, gaskets and wire harness type applications.

As with any product, use of Bayflex XGT 2 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 
  • Soft
  • Sound Damping
  
Uses 
  • Automotive Applications
  • Gaskets
  • Seals
Forms 
  • Liquid
Processing Method 
  • Reaction Injection Molding (RIM)
Physical
Nominal Value
Unit
Test Method
Specific Gravity
      
--
 
 ASTM D1622
-- 2
 
  
-- 3
 
  
--
g/cm³
 ASTM D1505
Viscosity
      
77°F 2
Pa·s
  
77°F 3
Pa·s
  
Water Content 2
wt%
  
Elastomers
Nominal Value
Unit
Test Method
Tensile Strength
     ASTM D412
Across Flow: Yield 4
psi
  
Flow: Yield 5
psi
  
Tensile Elongation 4
     ASTM D412
Across Flow: Break
%
  
Flow: Break
%
  
Tear Strength 6
     ASTM D624
Across Flow
lbf/in
  
Flow
lbf/in
  
Hardness
Nominal Value
Unit
Test Method
Durometer Hardness
     ASTM D2240
Shore A, 1 sec
 
  
Shore A, 5 sec
 
  
Flammability
Nominal Value
Unit
Test Method
Flash Point
      
-- 7
°F
  
-- 8
°F
  
Thermoset
Nominal Value
Unit
Test Method
Thermoset Components
      
Part A
 
  
Part B
 
  
Additional Information
Nominal Value
Unit
Test Method
NCO 3
%
  
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Bayflex® XGT-2, Bayflex XGT2, Bayflex® , Bayflex, BayflexXGT2, XGT, XGT-2, XGT2, XGT:2, XGT/2, XGT+2, XGT_2, XGT 2, Polyurethane, Polyurethane (MDI), Polyurethane MDI, PUR-MDI, PURMDI, PUR:MDI, PUR/MDI, PUR+MDI, PUR_MDI, PUR MDI, PUR, Bayer, PolyurethaneMDI, 2XGT
Uses
Uses may also be described by the following terms: Automotive Applications, Automotive Sector, Gaskets, Gasketing.
Injection
Nominal Value
Unit
 
Mold Temperature
°F
  
Injection Notes
Isocyanate Temperature: 100 to 110°F
Slurry Temperature: 100 to 110°F
Slurry or Polyol Nucleation: 5 to 10%
Maximum Shot Time: 9 sec
Typical Cure Time, 0.125 in: 3 min
Polyol Mixhead Pressure: 1900 to 2100 psi
Isocyanate Mixhead Pressure: 1900 to 2100 psi
Notes
1Typical properties: these are not to be construed as specifications.
2Component B (Polyol)
3Component A (Isocyanate)
420 in/min
5Die C, 20 in/min
6Die C
7Component B (Polyol), PMCC
8Component A (Isocyanate), PMCC
 
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.