Sabic LEXAN™ PC Resin 244RF
Plastic Granules
SABIC Lexan 244RF Flame Retardant Grade
LEXAN™ 244RF is a versatile, medium-viscosity polycarbonate resin. It offers enhanced flame resistance and easy mold release, is compliant with FDA food contact regulations. Ideal for demanding industrial and consumer applications.
Associated Documents
TDS Asia
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)
- Water Absorption (23°C/Saturated): 0.35% (ASTM D570)
- Water Absorption (100°C, Equilibrium): 0.58% (ASTM D570)
- Mold Shrinkage, Flow (3.2 mm): 0.5–0.7% (SABIC Method)
- Melt Flow Rate (300°C/1.2 kgf): 10.5 g/10 min (ASTM D1238)
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 (1.3 mm/min): 2340 MPa (ASTM D790)
- Hardness, Rockwell M: 70 (ASTM D785)
- Hardness, Rockwell R: 118 (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)
Thermal Properties
- Vicat Softening Temperature (Rate B/50): 154°C (ASTM D1525)
- Heat Deflection Temperature (HDT, 0.45 MPa): 137°C (ASTM D648)
- HDT (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 Thermal Index (Electrical, Mechanical w/impact, and Mechanical w/o impact): 130°C (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 (in air, 3.2 mm): 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)
- Hot Wire Ignition (PLC): 2 (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)
Flame Characteristics
- UL Recognized 94V-2 Flame Class Rating (1.5 mm): Pass (UL 94)
- Oxygen Index (LOI): 25% (ASTM D2863)
- Glow Wire Flammability Index (850°C, Passes at 1 mm): PASS (IEC 60695-2-12)
- Glow Wire Ignitability Temperature (1 mm): 875°C (IEC 60695-2-13)
Injection Molding Parameters
- Drying Temperature: 120°C
- Drying Time: 3–4 hours
- Drying Time (Cumulative): 48 hours
- Maximum Moisture Content: 0.02%
- Melt Temperature: 295–315°C
- Nozzle Temperature: 290–310°C
- Front Zone 3 Temperature: 295–315°C
- Middle Zone 2 Temperature: 280–305°C
- Rear Zone 1 Temperature: 270–295°C
- Mold Temperature: 70–95°C
- Back Pressure: 0.3–0.7 MPa
- Screw Speed: 40–70 rpm
- Shot to Cylinder Size: 40–60%
- Vent Depth: 0.025–0.076 mm
Features & Benefits
Superior Flame Resistance & Safety
This grade achieves a UL 94 V-2 rating and high oxygen index, providing reliable fire safety for electrical components and enclosures, helping your products meet stringent safety standards.
Exceptional Strength & Impact Resistance
With high notched Izod impact and tensile strength, it ensures durability and reliability for thin-walled or complex parts that must withstand drops, impacts, or rough handling.
Easy Processing & Mold ReleaseFla
Its balanced flow and improved release properties reduce sticking and cycle times in injection molding, boosting your production efficiency and part quality.