Invista™ U3501 Nylon66

invista pa66 nylon polymer 25kg package

Invista™ U3501 Low Viscosity Natural PA66 Resin

INVISTA™ U3501 is a versatile, low-viscosity PA66 resin. It features easy processing, natural color stability, and excellent mechanical property retention. Designed for professionals in compounding, injection molding, and extrusion.

Associated Documents

TDS - Data Sheet

Typical property data

Physical Properties
  • Density: 1.14 g/cm³ (ISO 1183)
  • Mold Shrinkage (2.0 mm, parallel): 1.1% (ISO 294-4)
  • Water Absorption (24 hours, immersion): 1.7% (ISO 62)
  • Moisture Absorption (equilibrium @ 50% RH): 2.6% (ISO 62)
Mechanical Properties
  • Tensile Strength at Yield: 82 MPa (ISO 527)
  • Elongation at Yield: 3.9% (ISO 527)
  • Elongation at Break: 45% (ISO 527)
  • Tensile Modulus: 3000 MPa (ISO 527)
  • Flexural Modulus: 2700 MPa (ISO 178)
  • Flexural Strength (at 3.5% strain): 91 MPa (ISO 178)
  • Notched Charpy (23°C): 4.7 kJ/m² (ISO 179)
  • Notched Charpy (-30°C): 4.5 kJ/m² (ISO 179)
  • Unnotched Charpy (23°C): NB (No Break) kJ/m² (ISO 179)
  • Unnotched Charpy (-30°C): NB (ISO 179)
  • Notched Izod (23°C): 4.8 kJ/m² (ISO 180)
Viscosity Properties
  • RV in Formic Acid (Nominal): 35 (ASTM D789)
  • VN at 0.5% in Sulfuric Acid (Nominal): 126mL/g (ISO 307)
  • RV at 1% in Sulfuric Acid: (No standard mentioned)
Thermal Properties
  • Melting Temperature (10°C/min): 264°C (ISO 11357)
  • Heat Deflection Temperature (HDT):0.45 MPa: 199°C (ISO 75)
  • Heat Deflection Temperature (HDT): 1.80 MPa: 69°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 Content (Max): 0.20 wt%
  • Suggested Moisture Content (Min): 0.1 wt%

Use & Applications

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

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