Baydur® 645 (20 pcf)

Category: PUR-MDI , Polyurethane (MDI)
Manufacturer: Covestro - PUR
Trademark: Baydur®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: q6Ynkk_Baydur-645-20-pcf-.pdf
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Baydur 645 is a rigid polyurethane structural foam system used in the reaction injection molding (RIM) process. The system is supplied as two reactive liquid components. Component A is a polymeric diphenylmethane diisocyanate (PMDI), and Component B is a formulated polyol system containing no CFC- or HCFC-blowing additives.

The Baydur 645 system is used to produce foam cores for composite applications, such as water skis, agricultural and construction equipment, and various components for the transportation and marine markets. As with any product, use of the Baydur 645 system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.
General Information
Uses
  • Agricultural Applications
  • Automotive Applications
  • Marine Applications
  • Sporting Goods
  • Structural Foam
Processing Method
  • Reaction Injection Molding (RIM)
PhysicalNominal ValueUnitTest Method
Specific Gravity 0.319g/cm³ASTM D792
HardnessNominal ValueUnitTest Method
Durometer Hardness ASTM D2240
    Shore D, 6.35 mm 37
    Shore D, 12.7 mm 39
MechanicalNominal ValueUnitTest Method
Tensile Strength ASTM D638
    Break, 6.35 mm 6.07MPa
    Break, 12.7 mm 6.21MPa
Tensile Elongation ASTM D638
    Break, 6.35 mm 7.0%
    Break, 12.7 mm 9.0%
Flexural Modulus ASTM D790
    6.35 mm 303MPa
    12.7 mm 248MPa
Flexural Strength ASTM D790
    6.35 mm 8.27MPa
    12.7 mm 8.96MPa
Compressive Strength ASTM D695
    6.35 mm 6.07MPa
    12.7 mm 3.79MPa
ImpactNominal ValueUnitTest Method
Charpy Unnotched Impact Strength 15.3kJ/m²Internal Method
Note Message
1 .0.5
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