Sabic LEXAN™ PC Resin HF1140R
Plastic Granules
SABIC Lexan HF1140R High Flowstabilized
LEXAN™ Resin HF1140R is a high-flow polycarbonate designed for efficient molding, flame resistance (UL94 V2), and food contact compliance. Ideal for applications requiring clarity, strength, and safety in regulated environments such as food processing and consumer goods.
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ASTM D792)
- Mold Shrinkage (flow, 3.2 mm): 0.5 – 0.7% (SABIC method)
- Melt Flow Rate (300°C/1.2 kgf): 25 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): 65 MPa (ASTM D638)
- Tensile Strain (break, Type I, 50 mm/min): 120% (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): 2300 MPa (ASTM D790)
Impact Properties
- Izod Impact, notched (23°C): 640 J/m (ASTM D256)
- Tensile Impact Strength (Type S): 378 kJ/m² (ASTM D1822)
- Instrumented Dart Impact Energy @ Peak (23°C): 54 J (ASTM D3763)
Thermal Properties
- Heat Deflection Temperature (HDT, 1.82 MPa, 3.2 mm, unannealed): 126°C (ASTM D648)
- Relative Temperature Index (Electrical): 130°C (UL 746B)
- Relative Temperature Index (Mechanical with Impact): 130°C (UL 746B)
- Relative Temperature 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)
Electrical Properties
- Hot Wire Ignition (PLC): 2 (UL 746A)
- High Voltage Arc Track Rate (PLC): 2 (UL 746A)
- High Ampere Arc Ignition (PLC): 1 (UL 746A)
- Comparative Tracking Index (CTI): 2 (UL 746A)
Flame Characteristics
- UL Flame Class Rating (94V-2): 1.09 mm (UL 94)
Injection Molding Parameters
- Drying Temperature: 120°C
- Drying Time: 3–4 hours (Max Cumulative: 48 hours)
- Maximum Moisture Content: 0.02%
- Melt Temperature: 270–295°C
- Nozzle Temperature: 265–290°C
- Zone Temperatures:
- Rear (Zone 1): 250–270°C
- Middle (Zone 2): 260–280°C
- Front (Zone 3): 270–295°C
- Mold Temperature: 70–95°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
High Flow for Complex Molding
With a melt volume rate of 26, LEXAN HF1140R ensures fast, consistent flow—ideal for intricate or multi-cavity molds.
Food Contact Compliance
Certified for food contact in most jurisdictions, it’s a safe and reliable choice for applications in food service equipment and packaging.
Flame Resistance Built In
UL94 V-2 rating provides essential flame retardancy, helping manufacturers meet safety standards in regulated industries.