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Ensinger PEI
Covestro Baydur® 426 IMR RIM system
Categories: Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Solid RIM

Material Notes: Characterization: Baydur 426 IMR is a polyurethane high density structural RIM (HD SRIM) system.

Properties / Applications: Baydur 426 IMR is a polyurethane high density structural RIM (HD SRIM) system used for automotive and light truck applications. This system is well suited for load bearing truck beds, tailgates, bumper beams, load floors, etc. It has excellent heat stability performance. Baydur 426 IMR composites can be used to replace steel or structural plastics for significant weight reduction ad lower tooling costs. Due to its inherent nature, this system is corrosion and abrasion resistant. The Baydur 426 IMR system can be processed with either a closed mold or open mold. This system is combined with a variety of glass reinforcements to make a structural composite. Glass mats, directed chop preforms or glass rovings can be used for reinforcement. This system has the appropriate reaction rate so that it can be used with a chopped glass fiber RIM machine. The Baydur 426 IMR system has an exceptionally long gel time, yet fast cure time, that makes it well suited for large automotive parts.

Information provided by Covestro

Vendors:
Available Properties
  • Specific Gravity, Polyol (Component B)
  • Specific Gravity, Isocyanate (Component A)
  • Specific Gravity, ASTM D792, Continuous filament mat
  • Specific Gravity, ASTM D792, Chopped glass preform
  • Viscosity, Isocyanate (Component A)
  • Viscosity, Polyol (Component B)
  • Tensile Strength at Break, ASTM D638, Continuous filament mat
  • Tensile Strength at Break, ASTM D638, Chopped glass preform
  • Flexural Strength, ASTM D790, Continuous filament mat
  • Flexural Strength, ASTM D790, Chopped glass preform
  • Flexural Modulus, ASTM D790, Chopped glass preform
  • Flexural Modulus, ASTM D790, Continuous filament mat
  • CTE, linear, ASTM D696, Continuous filament mat
  • CTE, linear, ASTM D696, Chopped glass preform
  • Flash Point, PMCC, Polyol (Component B)
  • Flash Point, PMCC, Isocyanate (Component A)
  • Mold Temperature
  • Gel Time
  
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Manufacturer Notes:
Covestro Deutschland AG, Bayer MaterialScience

Category Notes
Plastic

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