Sabic LEXAN™ PC Resin IR2840
Plastic Granules
SABIC Lexan IR2840 medium flow
LEXAN™ IR2840 resin is a 7 MFR polycarbonate, MVR of 6. Grade designed for food contact. Mold release. Injection moldable. Available in transparent.
Associated Documents
TDS Americas
Typical property data
Physical Properties
- Density: 1.19 g/cm³ (ASTM D792)
- Specific Gravity: 1.2 (ASTM D792)
- Water Absorption (23°C, 24 hrs): 0.15% (ASTM D570)
- Water Absorption (23°C, Saturated): 0.35% (ASTM D570)
- Melt Flow Rate (300°C/1.2 kg): 7 g/10 min (ASTM D1238)
- Melt Volume Rate (300°C/1.2 kg): 6 cm³/10 min (ISO 1133)
- Mold Shrinkage (Flow, 3.2 mm): 0.5–0.7% (SABIC Method)
Mechanical Properties
- Tensile Strength (Yield, 50 mm/min): 63 MPa (ASTM D638, ISO 527)
- Tensile Strength (Break, 50 mm/min): 68 MPa (ASTM D638); 70 MPa (ISO 527)
- Tensile Strain (Yield, 50 mm/min): 7% (ASTM D638); 6% (ISO 527)
- Tensile Strain (Break, 50 mm/min): 135% (ASTM D638); 120% (ISO 527)
- Tensile Modulus:
- 2310 MPa (ASTM D638)
- 2350 MPa (ISO 527)
- Flexural Stress (Yield, 50 mm span): 97 MPa (ASTM D790); 90 MPa (ISO 178)
- Flexural Modulus (50 mm span): 2300 MPa (ASTM D790, ISO 178)
Impact Properties
- Izod Impact (Unnotched, 23°C): 3204 J/m (ASTM D4812)
- Izod Impact (Notched, 23°C):
- 850 J/m (ASTM D256)
- 65 kJ/m² (ISO 180/1A)
- Izod Impact (Notched, -30°C):
- 139 J/m (ASTM D256)
- 10 kJ/m² (ISO 180/1A)
- Charpy Impact (23°C, V-Notch): 95 kJ/m² (ISO 179/1eA)
- Instrumented Dart Total Energy (23°C): 65 J (ASTM D3763)
Thermal Properties
- Vicat Softening Temperature (Rate B/50):
- 154°C (ASTM D1525)
- 144°C (ISO 306)
- Vicat Softening Temperature (Rate B/120): 145°C (ISO 306)
- Heat Deflection Temperature (HDT):
- 137°C at 0.45 MPa, unannealed (ASTM D648)
- 132°C at 1.82 MPa, unannealed (ASTM D648)
- 127°C (ISO 75/Af, 1.8 MPa)
- Coefficient of Thermal Expansion (CTE):
- Flow: 6×10−56 \times 10^{-5} 1/°C (ISO 11359-2)
- Cross-flow: 6×10−56 \times 10^{-5} 1/°C (ISO 11359-2)
- Ball Pressure Test (125°C): Passes (IEC 60695-10-2)
Optical Properties
- Light Transmission (2.54 mm): 88% (ASTM D1003)
- Haze (2.54 mm): 1% (ASTM D1003)
- Refractive Index: 1.586 (ASTM D542)
Injection Molding
- Drying Temperature: 120°C
- Drying Time (Regular): 3–4 hrs
- Drying Time (Cumulative): 48 hrs
- Maximum Moisture Content: 0.02%
- Melt Temperature: 310–330°C
- Nozzle Temperature: 305–325°C
- Mold Temperature: 80–115°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
Food Contact Compliance
LEXAN IR2840 is certified for food contact, making it ideal for applications in consumer goods and kitchenware manufacturing.
Excellent Mold Release
Built-in mold release properties reduce cycle times and improve production efficiency—especially valuable in high-volume injection molding.
Crystal-Clear Transparency
The transparent grade of LEXAN Resin IR2840 enhances product aesthetics and allows visibility—perfect for packaging, containers, and display items.