Invista™ U4503 Nylon66

invista pa66 nylon polymer 25kg package

Invista™ U4503 Low Viscosity PA66 Resin

INVISTA™ U4503 is a general-purpose PA66 (Nylon 66) feedstock resin specially formulated for compounding. It features reduced viscosity, superior flow, excellent mechanical stability, and ease of processingy.

Associated Documents

TDS - Data Sheet

Typical property data

Physical Properties
  • Density: 1.14 g/cm³ (ISO 1183)
  • Mold Shrinkage – Parallel (2.0 mm): 1.0 % (ISO 294-4)
  • Mold Shrinkage – Transverse (2.0 mm): 1.0 % (ISO 294-4)
  • Water Absorption (24 hours): 2.1 % (ISO 62)
  • Water Absorption (Equilibrium @ 50% RH): Not specified (ISO 62)
Mechanical Properties
  • Tensile Strength at Yield: 85 MPa (ISO 527)
  • Elongation at Yield: 4.3 % (ISO 527)
  • Elongation at Break: 26 % (ISO 527)
  • Tensile Modulus: 3000 MPa (ISO 527)
  • Flexural Modulus: 2900 MPa (ISO 178)
  • Flexural Strength: 96 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: No Break (ISO 179)
  • Unnotched Charpy Impact Strength at -30°C: No Break (ISO 179)
  • Notched Izod Impact Strength at 23°C: 4.0 kJ/m² (ISO 180)
Viscosity Properties
  • Relative Viscosity in Formic Acid: 45 (ASTM D789)
  • Viscosity Number (0.5% in Sulfuric Acid): 145 mL/g (ISO 307)
  • Relative Viscosity (1% in Sulfuric Acid): 2.65 (no standard listed)
Thermal Properties
  • Melting Temperature (10°C/min): 259 °C (ISO 11357)
  • Heat Deflection Temperature (HDT) at 0.45 MPa: 190 °C (ISO 75)
  • Heat Deflection Temperature (HDT) at 1.80 MPa: 62 °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 (Range): 4 – 6 mm
  • Screw Speed: 75 – 180 rpm
  • Suggested Moisture (Max): 0.20 wt%
  • Suggested Moisture (Min): 0.10 wt%

Use & Applications

  • For compounding applications.
invista pa66 nylon polymer 25kg package

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