Sabic LEXAN™ PC Resin OQ4005
SABIC Lexan OQ4005 Optical Grade
LEXAN™ OQ4005 is an optical-grade, UV-stabilized polycarbonate featuring superior clarity with a UV cut-off up to 400 nm and an MVR of 8. It is engineered to deliver exceptional optical purity and long-term weatherability, making it an ideal material for demanding applications like high-performance sunglass lenses and protective sunvisors.
Associated Documents
TDS Asia
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ASTM D792)
- Mold Shrinkage:
- Flow: 0.77% (SABIC method)
- Cross-flow: 0.77% (SABIC method)
- Water Absorption (23°C, saturated): 0.14% (ISO 62-1)
- Melt Volume Rate (MVR): 8 cm³/10 min at 300°C/1.2 kg (ISO 1133)
Mechanical Properties
- Tensile Stress:
- Yield: 64 MPa (ASTM D638)
- Break: 60 MPa (ASTM D638)
- Tensile Strain:
- Yield: 6% (ASTM D638)
- Break: 78% (ASTM D638)
- Tensile Modulus: 2300 MPa (ASTM D638)
- Flexural Stress:
- Yield: 96 MPa (ASTM D790)
- Yield (ISO 178): 97 MPa
- Flexural Modulus: 2310 MPa (ASTM D790)
Impact Properties
- Izod Impact (Unnotched):
- 23°C: NB (No Break) (ASTM D4812)
- -30°C: NB (No Break) (ASTM D4812)
- Izod Impact (Notched):
- 23°C: 910 J/m (ASTM D256)
- -30°C: 128 J/m (ASTM D256)
Thermal Properties
- Vicat Softening Temperature: 145°C, Rate B/50 (ASTM D1525)
- Heat Deflection Temperature (HDT): 129°C at 1.82 MPa, unannealed (ASTM D648)
- Coefficient of Thermal Expansion (CTE):
- Flow: 6.06E-05 1/°C (ISO 11359-2)
- Cross-flow: 6.16E-05 1/°C (ISO 11359-2)
- Ball Pressure Test: Passes at 125°C ± 2°C (IEC 60695-10-2)
Optical Properties
- Light Transmission (2.54 mm): 87% (ASTM D1003)
- Haze (2.54 mm): 0.4% (ASTM D1003)
Electrical Properties
- Dielectric Constant (1.1 GHz): 2.8 (SABIC method)
- Dissipation Factor (1.1 GHz): 0.0063 (SABIC method)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 2–4 hours
- Maximum Moisture Content: 0.02%
- Melt Temperature: 280–310°C
- Nozzle Temperature: 270–290°C
- Zone Temperatures:
- Rear (Zone 1): 260–280°C
- Middle (Zone 2): 270–290°C
- Front (Zone 3): 280–310°C
- Hopper Temperature: 60–80°C
- Mold Temperature: 80–110°C
Features & Benefits
Superior Optical Clarity & UV Protection
This OQ4005 resin offers >87% light transmission with minimal haze, ensuring crystal-clear vision. Its built-in UV stabilizer blocks harmful rays up to 400 nm, significantly enhancing product longevity and user protection in outdoor applications.
Exceptional Durability and Impact Resistance
With a “No Break” rating in unnotched Izod tests, this material provides outstanding toughness and safety. This superior impact resistance reduces breakage risks, ensuring reliable performance in demanding eyewear and visor components.
High Heat Resistance for Stable Performance
A Vicat softening point of 145°C ensures the resin maintains its shape and integrity under high temperatures. This thermal stability allows for use in environments where other plastics might warp, supporting consistent quality during both processing and end-use.
