Zhenjiang Chimei Polyrex® PG-383M
Plastic Granules
Polyrex® PG-383M General Injection Molding Grade GPPS
Polyrex® PG-383M is a high-strength, crystal-clear general-purpose polystyrene (GPPS) engineered for standard injection molding. Delivering 50 MPa tensile strength, 3.0 GPa flexural modulus, and a 93°C Vicat point, it balances rigidity, transparency, and easy flow — a reliable workhorse for everyday plastic parts.
Typical property data
Physical Properties
- Melt Flow Rate (MFR): 3.0 cm³/10 min at 200°C, 5 kg (ISO 1133)
- Density: 1.04 g/cm³ (ISO 1183, 23°C)
Mechanical Properties
- Tensile Strength: 50 MPa (ISO 527, 50 mm/min)
- Elongation: 4.0% (ISO 527, 50 mm/min)
- Flexural Strength: 80 MPa (ISO 178, 2 mm/min)
- Flexural Modulus: 3.0 GPa (ISO 178, 2 mm/min)
Impact Properties
- Izod Impact Strength: 4.0 kJ/m² (ISO 180, 4 mm/23°C)
- Charpy Impact Strength: 2.7 kJ/m² (ISO 179, 4 mm/23°C)
Thermal Properties
- Vicat Softening Point: 93°C (ISO 306, 10 N, 50°C/hr)
- Heat Deflection Temperature (HDT):
- 1.8 MPa (annealed): 94°C (ISO 75-2)
- 1.8 MPa (unannealed): 81°C (ISO 75-2)
Flame Characteristics
- Flame Rating: UL HB at 1.5 mm thickness (File No. E194560)
Use & Applications
- Food Packaging containers
- Bento boxes
- Refrigerator drawers
Features & Benefits
1. High Strength, Built to Last
Polyrex® PG-383M delivers 50 MPa tensile strength and 80 MPa flexural strength — parts resist cracking under daily stress.
2. Crystal-Clear Transparency
Colorless and optically clear, PG-383M lets your product shine on the shelf — ideal for premium-looking packaging and displays.
3. Smooth, Efficient Processing
With a 3.0 cm³/10min MVR, Polyrex® PG-383M flows easily into complex molds, cutting cycle times and reducing scrap rates.