Sabic LEXAN™ PC Resin 143R
SABIC PC Lexan 143R General Purpose Grade
SABIC Lexan 143R is a versatile, UV-stabilized polycarbonate resin. It offers an excellent balance of high impact strength, clarity, and ease of processing with a built-in mold release, ideal for demanding applications across various industries.
Associated Documents
TDS Asia
TDS Europe
TDS Americas
MSDS - SAFETY DATA SHEET
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: 0.15% (23°C/24 hrs); 0.35% (23°C/Saturated); 0.58% (100°C equilibrium) (ASTM D570)
- Mold Shrinkage (flow, 3.2 mm): 0.5 – 0.7% (SABIC method)
Mechanical Properties
- Tensile Stress (yield, Type I, 50 mm/min): 62 MPa (ASTM D638)
- Tensile Stress (break, Type I, 50 mm/min): 65 MPa (ASTM D638)
- Tensile Strain (yield, Type I, 50 mm/min): 7% (ASTM D638)
- Tensile Strain (break, Type I, 50 mm/min): 110% (ASTM D638)
- Flexural Stress (yield, 1.3 mm/min, 50 mm span): 93 MPa (ASTM D790)
- Flexural Modulus (1.3 mm/min, 50 mm span): 2340 MPa (ASTM D790)
- Hardness: Rockwell M 70; 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): 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, 6.4 mm: 137°C (ASTM D648)
- 1.82 MPa, unannealed, 6.4 mm: 132°C (ASTM D648)
- Coefficient of Thermal Expansion (CTE, flow, -40°C to 95°C): 6.84E-05 1/°C (ASTM E831)
- Specific Heat: 1.25 J/g°C (ASTM C351)
- Thermal Conductivity: 0.19 W/m°C (ASTM C177)
- Relative Temperature Index: 130°C (Electrical, Mechanical with Impact, and Mechanical 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: >1.0E+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)
- 1 MHz: 2.96 (ASTM D150)
- Dissipation Factor:
- 50/60 Hz: 0.0009 (ASTM D150)
- 1 MHz: 0.01 (ASTM D150)
- Hot Wire Ignition (HWIT): PLC Code 4 (UL 746A)
- High Voltage Arc Tracking (HVAT): PLC Code 2 (UL 746A)
- High Ampere Arc Ignition (HAI): PLC Code 1 (UL 746A)
- Comparative Tracking Index (CTI): PLC Code 2 (UL 746A)
Flame Characteristics
- UL94 Flame Class Rating: 94HB for 0.76 mm (UL 94)
- Oxygen Index (LOI): 25% (ASTM D2863)
- UV-Light, Water Exposure/Immersion: Rated F1 (UL 746C)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 3 – 4 hrs
- Drying Time (Cumulative): 48 hrs
- Max. Moisture Content: 0.02%
- Melt Temperature: 295 – 315°C
- Nozzle Temperature: 290 – 310°C
- Zone Temperatures: Rear: 270–295°C; Middle: 280–305°C; Front: 295–315°C
- Mold Temperature: 70 – 95°C
- Back Pressure: 0.3 – 0.7 MPa
- Screw Speed: 40 – 70 rpm
- Shot to Cylinder Ratio: 40 – 60%
- Vent Depth: 0.025 – 0.076 mm
Use & Applications
- Automotive interior components (e.g., lens covers, glove box doors)
- Transparent protective shields and machine guards
- Housings for consumer electronics and power tools
- Lighting components and diffusers
- Medical device housings (non-implant)
- Various industrial and consumer durable goods
Features & Benefits
Superior Impact Resistance & Clarity
With exceptional notched Izod impact strength, components resist cracking and breaking during use or assembly. Its high light transmission makes it perfect for durable, see-through covers and lenses.
Built-In Mold Release Agent
This feature significantly improves production efficiency by allowing for easier part ejection from the mold. It reduces cycle times and potential mold fouling, lowering your overall part cost.
Excellent UV & Thermal Stability
The resin is UV stabilized, ensuring long-term color and property retention outdoors. It maintains performance at high temperatures, suitable for applications exposed to heat and sunlight.