Invista™ U4591 Nylon66
Plastic Granules
Invista™ U4591 High Flow PA66 Resin
INVISTA™ U4591 is a versatile PA66 feedstock resin with an exceptionally high level of amine end groups, engineered for compounding applications. Known for its high flowability and robust mechanical properties, this resin is perfect for demanding industrial and engineering needs.
Associated Documents
TDS - Data Sheet
Typical property data
Physical Properties
- Density: 1.14 g/cm³ (ISO 1183)
- Mold Shrinkage (2.0 mm, parallel): 1.2% (ISO 294-4)
- Mold Shrinkage (2.0 mm, transverse): 1.4% (ISO 294-4)
- Water Absorption (24 hours): 1.8% (ISO 62)
Mechanical Properties
- Tensile Strength at Yield: 81 MPa (ISO 527)
- Elongation at Yield: 4.3% (ISO 527)
- Elongation at Break: 35% (ISO 527)
- Tensile Modulus: 2900 MPa (ISO 527)
- Flexural Modulus: 3000 MPa (ISO 178)
- Flexural Strength: 97 MPa (ISO 178)
- Notched Charpy Impact Strength (23°C): 5.5 kJ/m² (ISO 179)
- Notched Charpy Impact Strength (-30°C): 4.9 kJ/m² (ISO 179)
- Unnotched Charpy Impact Strength (23°C): Not Breakable (NB) (ISO 179)
- Unnotched Charpy Impact Strength (-30°C): Not Breakable (NB) (ISO 179)
- Notched Izod Impact Strength (23°C): 4.4 kJ/m² (ISO 180)
Viscosity Properties
- Relative Viscosity (RV) in Formic Acid: Nominal 45 (ASTM D789)
- Viscosity Number (VN) at 0.5% in Sulfuric Acid: Nominal 145 mL/g (ISO 307)
- Relative Viscosity (RV) at 1.0% in Sulfuric Acid: Nominal 2.65
Thermal Properties
- Melting Temperature: 262°C (ISO 11357)
- HDT at 0.45 MPa: 197°C (ISO 75)
- HDT at 1.80 MPa: 67°C (ISO 75)
Injection Molding
- Drying Temperature: 80°C
- Drying Time: 6-12 hours (initial moisture below 0.5 wt%)
- 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 (Max): 0.20 wt%
- Suggested Moisture (Min): 0.10 wt%
- Screw Speed: 75-180 rpm
Use & Applications
- For compounding applications.