Sabic LEXAN™ PC Resin HF1840R
Plastic Granules
SABIC Lexan HF1840R High Flow
LEXAN™ Resin HF1840R is a transparent, low-viscosity polycarbonate resin engineered for high-flow injection molding. With excellent mold release and food contact compliance in most regions, it’s ideal for precision parts in regulated industries like food packaging and consumer goods.
Associated Documents
TDS Europe
Typical property data
Physical Properties
- Density: 1.2 g/cm³ (ISO 1183)
- Mold Shrinkage: 0.5 – 0.7% (SABIC Method)
- Water Absorption (23°C, saturated): 0.35% (ISO 62-1)
- Moisture Absorption (23°C, 50% RH): 0.15% (ISO 62)
- Melt Volume Rate (MVR):
- At 250°C/1.2 kg: 6 cm³/10 min (ISO 1133)
- At 300°C/1.2 kg: 36 cm³/10 min (ISO 1133)
Mechanical Properties
- Taber Abrasion (CS-17, 1 kg): 10 mg/1000 cycles (SABIC Method)
- Tensile Properties (ISO 527):
- Stress at Yield: 60 MPa
- Stress at Break: 55 MPa
- Strain at Yield: 6%
- Strain at Break: 70%
- Tensile Modulus: 2300 MPa
- Flexural Properties (ISO 178):
- Stress at Yield: 85 MPa
- Modulus: 2300 MPa
- Ball Indentation Hardness (H358/30): 95 MPa (ISO 2039-1)
Impact Properties
- Izod Impact Strength (ISO 180):
- Unnotched at +23°C: NB (No Break)
- Unnotched at -30°C: NB (No Break)
- Notched at +23°C: 55 kJ/m²
- Notched at -30°C: 11 kJ/m²
- Charpy Impact Strength (ISO 179):
- Unnotched at +23°C: NB (No Break)
- Unnotched at -30°C: NB (No Break)
- V-Notch at +23°C: 55 kJ/m²
- V-Notch at -30°C: 11 kJ/m²
Thermal Properties
- Thermal Conductivity: 0.2 W/m°C (ISO 8302)
- CTE (23°C to 80°C): 7.E-05 1/°C (ISO 11359-2)
- Vicat Softening Temperature (ISO 306):
- Rate A/50: 145°C
- Rate B/50: 139°C
- Rate B/120: 140°C
- HDT (ISO 75):
- 0.45 MPa: 133°C
- 1.8 MPa: 121°C
- Relative Thermal Index: 80°C for Electrical/Mechanical with and without impact (UL 746B)
Optical Properties
- Light Transmission (2.54 mm): 88 – 90% (ASTM D1003)
- Haze (2.54 mm): <0.8% (ASTM D1003)
- Refractive Index: 1.586 (ISO 489)
Electrical Properties
- Volume Resistivity: >1.E+15 Ω·cm (IEC 60093)
- Surface Resistivity: >1.E+15 Ω (IEC 60093)
- Dielectric Strength (IEC 60243-1):
- 0.8 mm: 35 kV/mm
- 1.6 mm: 27 kV/mm
- 3.2 mm: 17 kV/mm
- Relative Permittivity (1 MHz): 2.7 (IEC 60250)
- Dissipation Factor:
- 1 MHz: 0.01 (IEC 60250)
- 50/60 Hz: 0.001 (IEC 60250)
Flame Characteristics
- Ball Pressure Test at 125°C: Passes (IEC 60695-10-2)
Injection Molding Guidance
- Drying Temperature: 120°C
- Drying Time: 2 – 4 hours
- Maximum Moisture Content: 0.02%
- Recommended Temperatures:
- Melt: 280 – 300°C
- Nozzle: 270 – 290°C
- Front Zone: 280 – 300°C
- Middle Zone: 270 – 290°C
- Rear Zone: 260 – 280°C
- Hopper: 60 – 80°C
- Mold Temperature: 80 – 100°C
Features & Benefits
Exceptional Flow Characteristics
LEXAN HF1840R offers ultra-low viscosity for faster injection molding cycles. Ideal for thin-wall or intricate part designs.
Food Contact Compliance
Compliant with most global food contact regulations, making it a trusted choice for food-grade containers and utensils.
Crystal-Clear Transparency
It delivers high optical clarity, perfect for applications where product visibility and aesthetics are critical, such as packaging.