Invista™ U4820L Nylon66
Plastic Granules
Invista™ U4820L Low Viscosity PA66 Resin
INVISTA™ U4820L is a premium, versatile PA66 resin. Designed for injection molding and extrusion applications, it features excellent processability, fast cycle times, and superior mold release properties.
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)
- Transverse: 1.8% (ISO 294-4)
- Water absorption (24h): 1.8% (ISO 62)
- Water absorption (equilibrium @ 50% RH): 2.6% (ISO 62)
Mechanical Properties
- Tensile Strength at Yield: 82 MPa / 49 MPa (ISO 527)
- Elongation at Break: 30% / >50% (ISO 527)
- Tensile Modulus: 3200 MPa / 1180 MPa (ISO 527)
- Flexural Modulus: 2900 MPa / 1100 MPa (ISO 178)
- Flexural Strength: 95 MPa / 33 MPa (ISO 178)
- Notched Charpy Impact Strength @ 23°C: 5.5 kJ/m² / 15 kJ/m² (ISO 179)
- Notched Charpy Impact Strength @ -30°C: 4.3 kJ/m² / 5.2 kJ/m² (ISO 179)
Viscosity Properties
- Relative Viscosity (Formic Acid): 48 (ASTM D789)
- Viscosity Number (Sulfuric Acid): 150 mL/g (ISO 307)
- Viscosity Number (Formic Acid): 137 mL/g (ISO 307)
Thermal Properties
- Melting Temperature: 261°C (ISO 11357)
- Heat Deflection Temperature (HDT):
- @ 0.45 MPa: 204°C (ISO 75)
- @ 1.80 MPa: 66°C (ISO 75)
- Ball Pressure Test: 240°C (IEC 60695)
Electrical Properties
- Volume Resistivity: (2E+14) ohm-cm (IEC 60093)
- Comparative Tracking Index (CTI): 600 V (IEC 60112)
- Dielectric Strength (1 mm): 18 kV/mm (UL 746A)
Flame Characteristics
- UL Flame Rating (0.4 mm – 3 mm): V-2 (UL 94)
- Glow-Wire Flammability Temperatures:
- @ 0.71 mm: 960°C (IEC 60695)
- @ 1.5 mm: 960°C (IEC 60695)
- @ 3.0 mm: 960°C (IEC 60695)
Injection Molding
- Drying Temperature: 80°C
- Drying Time: 3–4 hours
- Processing Temperature (Melt): 280–295°C
- Mold Temperature: 50–90°C
- Screw Speed: 50–150 rpm
Use & Applications
- for injection molding and extrusion applications