Sabic LEXAN™ PC Resin 241S
Plastic Granules
SABIC Lexan 241S Flame Retardant Grade
LEXAN 241S is a high-performance polycarbonate (PC) resin with a 10.5 MFR, offering improved flame retardance and excellent mold release. Ideal for applications requiring dimensional stability, safety, and efficient processing.
Associated Documents
TDS Asia
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ASTM D792)
- Density: 1.19 g/cm³ (ASTM D792)
- Water Absorption (23°C/24hrs): 0.15% (ASTM D570)
- Water Absorption (Saturated): 0.35% (ASTM D570)
- Water Absorption (100°C, Equilibrium): 0.58% (ASTM D570)
- Melt Flow Rate (300°C/1.2 kgf): 10.5 g/10 min (ASTM D1238)
- Mold Shrinkage (flow, 3.2 mm): 0.5–0.7% (SABIC method)
Mechanical Properties
- Tensile Stress, Yield (50 mm/min): 62 MPa (ASTM D638)
- Tensile Stress, Break (50 mm/min): 68 MPa (ASTM D638)
- Tensile Strain, Yield (50 mm/min): 7% (ASTM D638)
- Tensile Strain, Break (50 mm/min): 130% (ASTM D638)
- Flexural Stress, Yield (1.3 mm/min): 96 MPa (ASTM D790)
- Flexural Modulus: 2340 MPa (ASTM D790)
- Rockwell Hardness: M70, R118 (ASTM D785)
- Taber Abrasion (CS-17, 1 kg): 10 mg/1000 cycles (ASTM D1044)
Impact Properties
- Izod Impact, Unnotched (23°C): 3204 J/m (ASTM D4812)
- Izod Impact, Notched (23°C): 801 J/m (ASTM D256)
- Tensile Impact Strength, Type S: 577 kJ/m² (ASTM D1822)
- Falling Dart Impact (23°C): 169 J (ASTM D3029)
- Instrumented Dart Impact Energy (@ peak, 23°C): 63 J (ASTM D3763)
Thermal Properties
- Vicat Softening Temperature (Rate B/50): 154°C (ASTM D1525)
- HDT (Heat Deflection Temperature):
- @ 0.45 MPa: 137°C (ASTM D648)
- @ 1.82 MPa: 132°C (ASTM D648)
- Coefficient of Thermal Expansion (Flow): 6.84E-05, 1/°C (ASTM E831)
- Specific Heat: 1.25 J/g-°C (ASTM C351)
- Thermal Conductivity: 0.27 W/m-°C (ASTM C177)
- Relative Temp Index: 130°C (Electrical, Mechanical with or without impact; UL 746B)
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)
- @ 1 MHz: 2.96 (ASTM D150)
- Dissipation Factor:
- @ 50/60 Hz: 0.0009 (ASTM D150)
- @ 1 MHz: 0.01 (ASTM D150)
Flame Characteristics
- UL 94 Flame Class Rating:
- 94V-2 @ 1.09 mm
- 94V-0 @ 5.99 mm
- UV-Light and Water Exposure/Immersion: F2 (UL 746C)
- Hot Wire Ignition (PLC): PLC 2 (UL 746A)
- High Voltage Arc Tracking Rate (PLC): PLC 2 (UL 746A)
- High Ampere Arc Ignition (Surface, PLC): PLC 1 (UL 746A)
- Comparative Tracking Index (UL): PLC 2 (UL 746A)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 3–4 hrs
- Maximum Moisture Content: 0.02%
- Melt Temperature: 295–315°C
- Mold Temperature: 70–95°C
- Nozzle Temperature: 290–310°C
- Back Pressure: 0.3–0.7 MPa
- Screw Speed: 40–70 rpm
- Vent Depth: 0.025–0.076 mm
Features & Benefits
Enhanced Flame Resistance
Flame-retardant formulation meets UL94 V-0 at 1.5mm—ideal for electrical housings and devices requiring strict fire safety compliance.
Superior Mold Release
Excellent mold release properties reduce cycle times and tool wear—perfect for high-volume injection molding operations.
High Flow for Complex Molds
10.5 MFR supports intricate part designs and thin-wall molding—enabling engineers to push design boundaries without sacrificing performance.