Sabic LEXAN™ PC Resin OQ4320R
Plastic Granules
SABIC Lexan OQ4320R Optical Grade
LEXAN™ OQ4320R resin is a 13 MFR polycarbonate. UV stabilized. Mold release. Optical grade with UV cut-off up to 400 nm, greater optical purity than standard grades. Suitable for sunglass and sunvisor markets.
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ASTM D792)
- Water Absorption (23°C/24hrs): 0.15% (ASTM D570)
- Mold Shrinkage (flow, 3.2 mm): 0.5–0.7% (SABIC method)
- Melt Flow Rate (300°C/1.2 kgf): 12.5 g/10 min (ASTM D1238)
Mechanical Properties
- Tensile Stress at Yield (Type I, 50 mm/min): 62 MPa (ASTM D638)
- Tensile Strain at Yield (Type I, 50 mm/min): 7% (ASTM D638)
- Tensile Strain at Break (Type I, 50 mm/min): 130% (ASTM D638)
- Flexural Stress at Yield (1.3 mm/min, 50 mm span): 96 MPa (ASTM D790)
- Flexural Modulus (1.3 mm/min, 50 mm span): 2340 MPa (ASTM D790)
Impact Properties
- Izod Impact (notched, 23°C): 747 J/m (ASTM D256)
- Falling Dart Impact (D3029, 23°C): 169 J (ASTM D3029)
- Instrumented Dart Impact Energy at Peak (23°C): 63 J (ASTM D3763)
Thermal Properties
- Vicat Softening Temperature (Rate B/50): 154°C (ASTM D1525)
- Heat Deflection Temperature (0.45 MPa, 6.4 mm, unannealed): 137°C (ASTM D648)
- Heat Deflection Temperature (1.82 MPa, 6.4 mm, unannealed): 132°C (ASTM D648)
Optical Properties
- UV Cut-off: Up to 400 nm
- Optical Grade: Greater optical purity than standard grades
Features & Benefits
Superior Optical Clarity & UV Protection
This resin offers exceptional optical purity and cuts off damaging UV light up to 400 nm, ensuring long-term product clarity and user protection—perfect for high-end eyewear.
Exceptional Toughness and Impact Resistance
The OQ4320R plastic particles withstand significant physical stress, enhancing product durability and reliability in demanding environments.
Integrated Mold Release for Efficiency
The built-in mold release agent facilitates easier, faster part ejection, reducing cycle times and potential mold fouling to boost your manufacturing productivity and part quality.
