Sabic LEXAN™ PC Resin 143
SABIC PC Lexan 143 General Purpose Grade
LEXAN 143 is a UV-stabilized, non-halogenated polycarbonate resin with a 10.5 MFR and a UL HB flame rating. This versatile, high-performance material offers an exceptional balance of impact strength, clarity, and thermal resistance for demanding engineering applications.
Associated Documents
TDS Asia
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ASTM D792)
- Density: 1.19 g/cm³ (ASTM D792)
- Specific Volume: 0.83 cm³/g (ASTM D792)
- Water Absorption, 23°C/24hrs: 0.15% (ASTM D570)
- Water Absorption, Saturated (23°C): 0.35% (ASTM D570)
- Water Absorption, Equilibrium (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/10min (ASTM D1238)
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 (50 mm/min): 7% (ASTM D638)
- Tensile Strain, Break (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)
- Rockwell Hardness (M): 70 (ASTM D785)
- Rockwell Hardness (R): 118 (ASTM D785)
- Taber Abrasion, CS-17, 1kg: 10 mg/1000cy (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 Temp, Rate B/50: 154°C (ASTM D1525)
- HDT (0.45 MPa, Unannealed): 137°C (ASTM D648)
- HDT (1.82 MPa, Unannealed): 132°C (ASTM D648)
- Coefficient of Thermal Expansion (CTE), -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 Thermal Index (Electrical): 130°C (UL 746B)
- Relative Thermal Index (Mechanical, with impact): 130°C (UL 746B)
- Relative Thermal Index (Mechanical, 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 (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)
Flame Characteristics
- UL Recognized 94HB Flame Class Rating: 0.76 mm (UL 94)
- Oxygen Index (LOI): 25% (ASTM D2863)
- UV-light & Water Exposure Resistance: F1 (UL 746C)
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
- Back Pressure: 0.3–0.7 MPa
- Screw Speed: 40–70 rpm
- Vent Depth: 0.025–0.076 mm
Features & Benefits
Exceptional Impact Resistance
With an unmatched notched Izod impact of 801 J/m, LEXAN™ 143 withstands severe shocks and drops that would crack or shatter ordinary plastics.
High Heat & Dimensional Stability
Featuring a Heat Deflection Temperature (HDT) of 132°C at 1.82 MPa, this resin maintains its shape and strength under high thermal stress.
Crystal Clarity & UV Stability
Offering 88% light transmission with low haze, LEXAN™ 143 provides excellent optical clarity. Its built-in UV stabilizer protects against yellowing and degradation.
Use & Applications
- Automotive
- Electrical & Electronics
- Consumer & IT
- Industrial