Sabic LEXAN™ PC Resin 123M
SABIC PC Lexan 123M General Purpose Grade
LEXAN 123M is a versatile 18 MFR polycarbonate resin. It features UV stabilization, improved internal mold release for faster cycles, and a UL94 HB flammability rating for reliable performance.
Associated Documents
TDS Americas
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ASTM D792)
- Density: 1.19 g/cm³ (ASTM D792)
- Water Absorption (% at 23°C):
- 24 hrs: 0.15% (ASTM D570)
- Saturated: 0.35% (ASTM D570)
- Equilibrium (100°C): 0.58% (ASTM D570)
- Melt Flow Rate (300°C/1.2 kgf): 17.5 g/10 min (ASTM D1238)
- Mold Shrinkage (flow, 3.2 mm): 0.5–0.8% (SABIC method)
Mechanical Properties
- Tensile Stress (Yield): 63 MPa (ASTM D638)
- Tensile Stress (Break): 66 MPa (ASTM D638)
- Tensile Strain (Yield): 7% (ASTM D638)
- Tensile Strain (Break): 120% (ASTM D638)
- Flexural Stress: 100 MPa (ASTM D790)
- Flexural Modulus: 2350 MPa (ASTM D790)
Impact Properties
- Izod Impact Strength:
- Unnotched (23°C): 2140 J/m (ASTM D4812)
- Notched (23°C): 820 J/m (ASTM D256)
- Notched (-30°C): 200 J/m (ASTM D256)
- Falling Dart Impact (23°C): 169 J (ASTM D3029)
- Instrumented Dart Impact Energy (23°C): 77 J (ASTM D3763)
Thermal Properties
- Vicat Softening Temperature (Rate B/50): 143°C (ASTM D1525)
- HDT (Heat Deflection Temperature):
- 0.45 MPa: 137°C (ASTM D648)
- 1.82 MPa: 132°C (ASTM D648)
- CTE (Coefficient of Thermal Expansion):
- Flow Direction: 6.36E-05, 1/°C (ASTM E831)
- Cross-flow: 6.5E-05, 1/°C (ASTM E831)
- Thermal Conductivity: 0.19 W/m-°C (ASTM C177)
- Specific Heat: 1.26 J/g-°C (ASTM C351)
Optical Properties
- Light Transmission (2.54 mm): 88% (ASTM D1003)
- Haze (2.54 mm): 1% (ASTM D1003)
- Refractive Index: 1.586 (ASTM D542)
Flame Characteristics
- UL94 Rating: HB rated
Injection Molding
- Drying Parameters:
- Temperature: 120°C
- Time: 3–4 hrs (cumulative 48 hrs)
- Maximum Moisture Content: 0.02%
- Melt Temperature: 280–305°C
- Nozzle Temperature: 275–300°C
- Mold Temperature: 70–95°C
- Back Pressure: 0.3–0.7 MPa
- Screw Speed: 40–70 rpm
- Vent Depth: 0.025–0.076 mm
Features & Benefits
Fast, Efficient Moldability
With an 18 MFR, SABIC LEXAN 123M enables faster cycle times and easier flow into intricate molds—ideal for high-volume production with tight tolerances.
Built-In UV Stability
LEXAN™ 123M resin resists yellowing and degradation from sunlight, making it ideal for outdoor or light-exposed parts like electrical housings or automotive trim.
Improved Internal Mold Release
Its self-releasing formulation reduces the need for external mold-release agents, minimizing part defects and reducing downtime in manufacturing.
Use & Applications
- Electrical enclosures and components
- Automotive interior and exterior trim
- Consumer electronics housings
- Lighting fixtures and covers
- Industrial machine guards
- Transparent or tinted safety panels
- Small appliance parts
- Business equipment casings