Invista™ U4803 Nylon66
Plastic Granules
Invista™ U4803 Low Viscosity PA66 Resin
INVISTA™ U4803 is a high-performance, natural PA66 resin designed for compounding, injection molding, and extrusion. It features ease of processing, excellent color consistency, and robust physical property retention.
Associated Documents
TDS - Data Sheet
Typical property data
Physical Properties
- Density: 1.14 g/cm³ (ISO 1183)
- Mold shrinkage:
- Parallel: 1.3% (ISO 294-4)
- Transverse: 1.7% (ISO 294-4)
- Water absorption:
- 24 hours: 1.8% (ISO 62)
- Equilibrium @ 50% RH: 2.6% (ISO 62)
Mechanical Properties
- Tensile strength at yield: 84 MPa (ISO 527)
- Tensile modulus: 2900 MPa (ISO 527)
- Elongation:
- At yield: 4.5% (ISO 527)
- At break: 50% (ISO 527)
- Flexural modulus: 3000 MPa (ISO 178)
- Flexural strength: 98 MPa (ISO 178)
- Notched Charpy impact strength:
- At 23°C: 4.7 kJ/m² (ISO 179)
- At -30°C: 4.6 kJ/m² (ISO 179)
- Unnotched Charpy impact strength:
- At 23°C: NB (No Break, ISO 179)
- At -30°C: NB (No Break, ISO 179)
- Notched Izod impact strength: 5.0 kJ/m² at 23°C (ISO 180)
Viscosity Properties
- Relative viscosity (RV):
- In formic acid: Nominal 48 (ASTM D789)
- At 1% in sulfuric acid: Nominal 2.7
- Viscosity number (VN): 150 mL/g at 0.5% in sulfuric acid (ISO 307)
Thermal Properties
- Melting temperature: 263°C (ISO 11357)
- Heat deflection temperature (HDT):
- At 0.45 MPa: 205°C (ISO 75)
- At 1.80 MPa: 73°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 temperature: 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
- Recommended moisture content:
- Max: 0.20% wt
- Min: 0.10% wt
- Screw speed: 75–180 rpm
Use & Applications
- for compounding, injection molding, and extrusion applications