Sabic LEXAN™ PC Resin 123R
Plastic Granules
SABIC PC Lexan 123R General Purpose Grade
SABIC Lexan 123R is a versatile, high-performance polycarbonate resin. This 18 MFR material is UV stabilized, contains a mold release, and carries key UL ratings for electrical and flame safety.
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ASTM D792)
- Specific Volume: 0.83 cm³/g (ASTM D792)
- Density: 1.19 g/cm³ (ASTM D792)
- Water Absorption (23°C, 24 hrs): 0.15% (ASTM D570)
- Mold Shrinkage (flow, 3.2 mm): 0.5 – 0.7% (SABIC Method)
- Melt Flow Rate (300°C/1.2 kgf): 17.5 g/10 min (ASTM D1238)
Mechanical Properties
- Tensile Stress (Yield, 50 mm/min): 62 MPa (ASTM D638)
- Tensile Stress (Break, 50 mm/min): 65 MPa (ASTM D638)
- Tensile Strain (Yield, 50 mm/min): 7% (ASTM D638)
- Tensile Strain (Break, 50 mm/min): 110% (ASTM D638)
- Flexural Stress (Yield, 1.3 mm/min): 93 MPa (ASTM D790)
- Flexural Modulus: 2340 MPa (ASTM D790)
- Rockwell Hardness (Scale M): 70 (ASTM D785)
- Rockwell Hardness (Scale R): 118 (ASTM D785)
Impact Properties
- Izod Impact, Unnotched (23°C): 3204 J/m (ASTM D4812)
- Izod Impact, Notched (23°C): 694 J/m (ASTM D256)
- Tensile Impact Strength: 546 kJ/m² (ASTM D1822)
- Falling Dart Impact (23°C): 169 J (ASTM D3029)
Thermal Properties
- Vicat Softening Temperature (Rate B/50): 154°C (ASTM D1525)
- Heat Deflection Temperature (0.45 MPa, Unannealed): 137°C (ASTM D648)
- Heat Deflection Temperature (1.82 MPa, Unannealed): 132°C (ASTM D648)
- Coefficient of Thermal Expansion (-40°C to 95°C): 6.84E-05 1/°C (ASTM E831)
- Specific Heat: 1.26 J/g-°C (ASTM C351)
- Thermal Conductivity: 0.19 W/m-°C (ASTM C177)
Optical Properties
- Light Transmission (2.54 mm): 88% (ASTM D1003)
- Haze (2.54 mm): 1% (ASTM D1003)
- Refractive Index: 1.586 (ASTM D542)
Electrical Properties
- Volume Resistivity: >1.E+17 Ω.cm (ASTM D257)
- Dielectric Strength (3.2 mm, in air): 14.9 kV/mm (ASTM D149)
- Relative Permittivity (50/60 Hz): 3.17 (ASTM D150)
- Relative Permittivity (1 MHz): 2.96 (ASTM D150)
- Dissipation Factor (50/60 Hz): 0.0009 (ASTM D150)
- Dissipation Factor (1 MHz): 0.01 (ASTM D150)
Flame Characteristics
- UL 94HB Flame Class Rating: 0.76 mm (UL 94)
- UV-light & Water Exposure: F1 rated (UL 746C)
- Hot Wire Ignition: PLC 4 (UL 746A)
- High Voltage Arc Tracking Rate: PLC 2 (UL 746A)
- High Ampere Arc Ignition (Surface): PLC 1 (UL 746A)
- Comparative Tracking Index: PLC 2 (UL 746A)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 3–4 hours
- 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
Superior Impact Resistance
With its exceptionally high notched Izod impact strength, this LEXAN 123R Polycarbonate PC Resin prevents cracking and breaking, ensuring product durability and reducing failure rates in protective components.
Built-in UV & Mold Release
The material is UV stabilized to resist yellowing and degradation from sunlight, and contains an internal mold release for easier, faster production cycles, lowering your operational costs.
Certified Safety & Stability
It meets UL94 HB and UL746C F1 ratings, guaranteeing flame retardancy and long-term performance stability for electrical enclosures, even in harsh, outdoor environments.
Use & Applications
- Electrical housings and enclosures
- Automotive interior and exterior components
- Protective covers and shields
- Consumer appliance parts
- Various industrial components