Invista™ U4801 Nylon66

invista pa66 nylon polymer 25kg package

Invista™ U4801 Low Viscosity PA66 Resin

INVISTA™ U4801 is a versatile PA66 plastic resin tailored for general-purpose use in compounding, injection molding, and extrusion. This natural resin ensures ease of processing, exceptional mechanical performance, and outstanding color retention for diverse industrial applications.

Associated Documents

TDS - Data Sheet

Typical property data

Physical Properties
  • Density: 1.14 g/cm³ (ISO 1183)
  • Mold Shrinkage (2.0 mm, Parallel): 1.5% (ISO 294-4)
  • Mold Shrinkage (2.0 mm, Transverse): 1.8% (ISO 294-4)
  • Water Absorption (24 hours): 1.8% (ISO 62)
  • Water Absorption (Equilibrium at 50% RH): 2.6% (ISO 62)
Mechanical Properties
  • Tensile Strength at Yield: 82 MPa (ISO 527)
  • Elongation at Yield: 4.4% (ISO 527)
  • Elongation at Break: 50% (ISO 527)
  • Tensile Modulus: 2800 MPa (ISO 527)
  • Flexural Modulus: 2800 MPa (ISO 178)
  • Flexural Strength: 94 MPa (ISO 178)
  • Notched Charpy Impact Strength at 23°C: 4.6 kJ/m² (ISO 179)
  • Notched Charpy Impact Strength at -30°C: 3.9 kJ/m² (ISO 179)
  • Unnotched Charpy Impact Strength at 23°C: NB (“No Break”) (ISO 179)
  • Unnotched Charpy Impact Strength at -30°C: NB (“No Break”) (ISO 179)
  • Notched Izod Impact Strength at 23°C: 5.0 kJ/m² (ISO 180)
Viscosity Properties
  • Relative Viscosity (in Formic Acid): 48 (ASTM D789)
  • Viscosity Number (0.5% in Sulfuric Acid): 150 mL/g (ISO 307)
  • Relative Viscosity (1% in Sulfuric Acid): 2.7
Thermal Properties
  • Melting Temperature (10°C/min): 261°C (ISO 11357)
  • HDT (Heat Deflection Temperature) at 0.45 MPa: 192°C (ISO 75)
  • HDT at 1.80 MPa: 71°C (ISO 75)
Injection Molding
  • Drying Temperature: 80°C
  • Drying Time: 8–12 hours*
  • Barrel Temperatures:
    • Rear: 250–270°C
    • Middle: 270–290°C
    • Front: 270–290°C
    • Nozzle: 270–290°C
  • Processing Temperature (Melt): 280–295°C
  • Mold Temperature: 50–90°C
  • Back Pressure: 2–10 bar
  • Vent Depth: 0.007–0.04 mm
  • Cushion: 4–6 mm
  • Suggested Moisture Content:
    • Maximum: 0.20 wt.%
    • Minimum: 0.10 wt.%
  • Screw Speed: 75–180 rpm

Use & Applications

  • for compounding, injection molding, and extrusion applications
invista pa66 nylon polymer 25kg package

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