Sabic LEXAN™ PC Resin 244R
Plastic Granules
SABIC Lexan 244R Flame Retardant Grade
LEXAN™ Resin 244R is a versatile polycarbonate featuring a 10.5 MFR for excellent flow, improved flame retardance, and internal mold release for faster cycling. It is USA FDA compliant (limited colors).
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/24hrs): 0.15% (ASTM D570)
- Water Absorption (23°C, Saturated): 0.35% (ASTM D570)
- Water Absorption (Equilibrium at 100°C): 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, Type I, 50 mm/min): 62 MPa (ASTM D638)
- Tensile Stress (Break, Type I, 50 mm/min): 68 MPa (ASTM D638)
- Tensile Strain (Yield, Type I, 50 mm/min): 7% (ASTM D638)
- Tensile Strain (Break, Type I, 50 mm/min): 130% (ASTM D638)
- Flexural Stress (Yield, 1.3 mm/min, 50 mm span): 96 MPa (ASTM D790)
- Flexural Modulus (1.3 mm/min, 50 mm span): 2340 MPa (ASTM D790)
- Hardness, Rockwell (M Scale): 70 (ASTM D785)
- Hardness, Rockwell (R Scale): 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 Temp (Rate B/50): 154°C (ASTM D1525)
- HDT (0.45 MPa, 6.4 mm, Unannealed): 137°C (ASTM D648)
- HDT (1.82 MPa, 6.4 mm, Unannealed): 132°C (ASTM D648)
- CTE (-40°C to 95°C, 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 (Electrical, Mechanical with/without 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 Track 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: 1.47 mm (UL 94)
- UL Recognized, 94V-0 Flame Class Rating: 5.99 mm (UL 94)
- Oxygen Index (LOI): 25% (ASTM D2863)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 3–4 hours
- Maximum Moisture Content: 0.02%
- Melt Temperature: 295–315°C
- Nozzle Temperature: 290–310°C
- Mold Temperature: 70–95°C
- Screw Speed: 40–70 rpm
- Back Pressure: 0.3–0.7 MPa
- Vent Depth: 0.025–0.076 mm
Features & Benefits
Reliable Flame Retardancy & Safety
This LEXAN 244R resin meets key UL 94 ratings (V-0 & V-2), providing inherent flame retardance. This reduces the need for additive packages, ensuring consistent performance and safety for electronics and electrical components.
Exceptional Toughness and Clarity
Combining high impact strength (801 J/m notched Izod) with 88% light transmission, LEXAN Resin 244R offers outstanding durability and optical clarity. It’s ideal for protective covers, lenses, and housings that require both toughness and a premium appearance.
Compliant & Process-Friendly
With USA FDA compliance for limited colors and built-in internal mold release, this grade simplifies production. It ensures faster demolding, higher productivity, and material suitability for applications needing regulatory approval for incidental food contact.
Use & Applications
- Electrical & Electronics
- Consumer & IT
- Healthcare & Lighting
- Industrial Components