Baydur® STR/C-1000 (38% Glass)

Category: PUR-MDI , Polyurethane (MDI)
Manufacturer: Covestro - PUR
Trademark: Baydur®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: b1Kx8W_Baydur-STR-C-1000-38-Glass-.pdf
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Message
Baydur STR/C-1000 is a moderate-viscosity, two-component, liquid structural RIM (reaction injection molding) system. Component A is a modified polymeric diphenylmethane diisocyanate (PMDI) blend,and Component B is a totally formulated polyol blend.

The Baydur STR/C-1000 system is used in the production of structural composite parts with long-fiber reinforcements. The reinforcement is placed in the mold, which is closed and then injected with the reactive resin.

Baydur STR composites can be ten times stiffer than Baydur structural foams and have the excellent impact properties traditionally associated with Bayer polyurethanes. As with any product, use of the Baydur STR/C-1000 system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.
General Information
Filler / Reinforcement
  • Glass fiber reinforced material, 38% filler by weight
Features
  • Impact resistance, good
  • Medium viscosity
Processing Method
  • Reaction Injection Molding (RIM)
PhysicalNominal ValueUnitTest Method
Density 1.52g/cm³ASTM D1622
MechanicalNominal ValueUnitTest Method
Tensile Strength (fracture, 2.79mm)170MPaASTM D638
Tensile Elongation (fracture, 2.79mm)5.0%ASTM D638
Flexural Modulus (2.79 mm)10000MPaASTM D790
Flexural Strength (2.79 mm)296MPaASTM D790
ImpactNominal ValueUnitTest Method
Notched Izod Impact (2.79 mm)590J/mASTM D256
ThermosetNominal Value
Thermoset Components
    Component a Mixing ratio by weight: 180
    Component B Mixing ratio by weight: 100
Additional Information
Part A Type: Isocyanate Appearance: Dark brown liquid Specific Gravity @ 25°C: 1.24 Viscosity @25°C: 320 cps Flash Point PMCC: 213°C NCO: 27.3 wt% Part B Type: Polyol Appearance: Clear to straw yellow liquid Specific Gravity @ 25°C: 1.04 Viscosity @25°C: 700 cps Flash Point PMCC: 143°C Water: <0.1 wt% Hydroxyl Number: 600 KOH/g Material Temperature - Isocyanate (Component A): 32 to 37°CMaterial Temperature - Polyol (Component B): 41 to 49°CMold Temperature: 79 to 88°CMetering Pressure: 2000 to 2500 psiGel Time: 36 secDemold Time: 120 secMaximum Shot Time: 10 sec
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