Invista™ U3671 Nylon66
Plastic Granules
Invista™ U3671 High Viscosity PA66 Resin
INVISTA™ U3671 is a high-performance PA66 plastic resin. With very low moisture content, low viscosity, and natural coloration, it excels in compounding, injection molding, and extrusion, offering high flow, superior color, and outstanding physical property retention.
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)
- Mold Shrinkage (2.0 mm, transverse): 0.9% (ISO 294-4)
- Water Absorption (24 hours): 2.0% (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: 36% (ISO 527)
- Tensile Modulus: 2950 MPa (ISO 527)
- Flexural Modulus: 3000 MPa (ISO 178)
- Flexural Strength: 97 MPa (ISO 178)
- Notched Charpy Impact Strength at 23°C: 4.5 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 (ISO 179)
- Unnotched Charpy Impact Strength at -30°C: NB (ISO 179)
- Notched Izod Impact Strength at 23°C: 3.7 kJ/m² (ISO 180)
Viscosity Properties
- Relative Viscosity in Formic Acid (nominal): 36 (ASTM D789)
- Viscosity Number in Sulfuric Acid (0.5%, nominal): 128 mL/g (ISO 307)
- Relative Viscosity in Sulfuric Acid (1%, nominal): 2.4 (Modified ISO 307)
Thermal Properties
- Melting Temperature (10°C/min): 260°C (ISO 11357)
- Heat Deflection Temperature (0.45 MPa): 191°C (ISO 75)
- Heat Deflection Temperature (1.80 MPa): 67°C (ISO 75)
Injection Molding
- Drying Temperature: 80°C
- Drying Time: 3 – 4 hours
- Barrel Temperatures:
- Rear: 250 – 280°C
- Middle: 275 – 290°C
- Front: 275 – 290°C
- Nozzle: 275 – 295°C
- Processing Temperature (Melt): 280 – 295°C
- Mold Temperature: 50 – 90°C
- Back Pressure: 5 – 30 bar
- Vent Depth: 0.007 – 0.04 mm
- Cushion Range: 4 – 6 mm
- Suggested Moisture (Max): 0.20 wt%
- Suggested Moisture (Min): 0.10 wt%
- Screw Speed: 50 – 150 rpm
Use & Applications
- for compounding, injection molding, and extrusion applications