Sabic LEXAN™ PC Resin IR1840
Plastic Granules
SABIC Lexan IR1840 High Flow
LEXAN IR1840 resin is a high flow (MFR = 22 at 300℃/1.2kg), heat stabilized, polycarbonate product with mold release designed for use in the general purpose molding market. This material is food contact compliant in most jurisdictions.
Associated Documents
TDS Europe
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ASTM D792, ISO 1183)
- Water Absorption (23°C/Saturated): 0.35% (ASTM D570, ISO 62-1)
- Mold Shrinkage (Flow): 0.5–0.7% (SABIC Method)
- Melt Flow Rate (300°C/1.2 kgf): 22 g/10 min (ASTM D1238)
- Melt Volume Rate (MVR, 300°C/1.2 kg): 21 cm³/10 min (ISO 1133)
Mechanical Properties
- Tensile Stress (Yield, 50 mm/min): 63 MPa (ASTM D638, ISO 527)
- Tensile Strain (Yield, 50 mm/min): 6% (ASTM D638, ISO 527)
- Tensile Strain (Break, 50 mm/min): >70% (ASTM D638, ISO 527)
- Tensile Modulus: 2350 MPa (ASTM D638, ISO 527)
- Flexural Stress (Yield, 2 mm/min): 90 MPa (ASTM D790, ISO 178)
- Flexural Modulus: 2300 MPa (ASTM D790, ISO 178)
- Hardness (Rockwell R): 120 (ASTM D785, ISO 2039-2)
Impact Properties
- Izod Impact Strength (Unnotched, +23°C): NB (Non-Breaking) (ASTM D4812, ISO 180/1U)
- Izod Impact Strength (Unnotched, -30°C): NB (ISO 180/1U)
- Izod Impact Strength (Notched, +23°C): 640 J/m (ASTM D256), 65 kJ/m² (ISO 180/1A)
- Izod Impact Strength (Notched, -30°C): 12 kJ/m² (ISO 180/1A)
- Instrumented Dart Impact Energy (Peak, +23°C): 55 J (ASTM D3763)
Thermal Properties
- Vicat Softening Temperature (Rate B/50): 140°C (ASTM D1525, ISO 306)
- Heat Deflection Temperature (HDT, 0.45 MPa): 133°C (ASTM D648, ISO 75/Bf)
- Heat Deflection Temperature (HDT, 1.82 MPa): 122°C (ASTM D648, ISO 75/Af)
- Coefficient of Thermal Expansion (CTE, 23°C–80°C): 7×10⁻⁵/°C (ASTM E831, ISO 11359-2)
- Thermal Conductivity: 0.2 W/m°C (ASTM C177, ISO 8302)
Optical Properties
- Light Transmission (2.54 mm thickness): 88–90% (ASTM D1003)
- Haze (2.54 mm thickness): <0.8% (ASTM D1003)
- Refractive Index: 1.586 (ASTM D542, ISO 489)
Electrical Properties
- Dielectric Strength (1.6 mm): 27 kV/mm (ASTM D149, IEC 60243-1)
- Relative Permittivity (60 Hz): 3 (ASTM D150, IEC 60250)
- Relative Permittivity (1 MHz): 3 (ASTM D150, IEC 60250)
- Dissipation Factor (60 Hz): 0.001 (ASTM D150, IEC 60250)
- Dissipation Factor (1 MHz): 0.01 (ASTM D150, IEC 60250)
Flame Characteristics
- Ball Pressure Test (125°C): Passes (IEC 60695-10-2)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 2–4 hours
- Maximum Moisture Content: 0.02%
- Melt Temperature: 280–300°C
- Nozzle Temperature: 270–290°C
- Mold Temperature: 80–100°C
- Hopper Temperature: 60–80°C
Features & Benefits
High Flow for Fast Molding
The high melt flow rate (22 MFR) ensures faster cycle times and efficient mold filling—ideal for high-volume production.
Heat Stability You Can Trust
Engineered for thermal resilience, it maintains structural integrity in high-temperature environments—perfect for demanding industrial parts.
Food Contact Compliance
Compliant with food contact standards in most jurisdictions, making it suitable for food-grade components and consumer goods.