Sabic LEXAN™ PC Resin VR1820
SABIC Lexan VR1820 UV-stabilized
LEXAN™ Resin VR1820 is a high-flow, heat and UV-stabilized polycarbonate with built-in mold release. Engineered for efficiency, it delivers excellent impact strength, clarity, and thermal stability, making it a reliable and versatile choice for high-quality, general-purpose molded components across various industries.
Associated Documents
TDS Europe
Typical property data
Physical Properties
- Specific Gravity: 1.20 (ASTM D792; ISO 1183)
- Melt Flow Rate (300°C/1.2 kgf): 22 g/10 min (ASTM D1238)
- Melt Volume Rate (300°C/1.2 kg): 21 cm³/10 min (ISO 1133)
- Water Absorption (23°C, saturated): 0.35% (ASTM D570; ISO 62-1)
- Mold Shrinkage (flow, 3.2 mm): 0.5 – 0.7% (SABIC method)
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 (1 mm/min): 2350 MPa (ISO 527; ASTM D638)
- Flexural Stress, Yield (2 mm/min): 90 MPa (ISO 178; ASTM D790)
- Flexural Modulus (2 mm/min): 2300 MPa (ISO 178; ASTM D790)
- Rockwell Hardness (R-scale): 120 (ASTM D785; ISO 2039-2)
Impact Properties
- Izod Impact, Notched (23°C, 80×10×3 mm): 65 kJ/m² (ISO 180/1A)
- Izod Impact, Notched (-30°C, 80×10×3 mm): 12 kJ/m² (ISO 180/1A)
- Izod Impact, Unnotched (23°C, 80×10×3 mm): No Break (ISO 180/1U)
- Instrumented Dart Impact Energy (23°C): 55 J (ASTM D3763)
Thermal Properties
- Vicat Softening Temperature (Rate B/50): 140°C (ASTM D1525; ISO 306)
- Heat Deflection Temperature at 0.45 MPa (3.2 mm): 133°C (ASTM D648; ISO 75/Bf)
- Heat Deflection Temperature at 1.82 MPa (3.2 mm): 122°C (ASTM D648; ISO 75/Af)
- CTE (flow, -40°C to 95°C): 7×10−5 1/°C7 \times 10^{-5} \, \text{1/°C} (ASTM E831; ISO 11359-2)
- Thermal Conductivity: 0.2 W/m-°C (ASTM C177; ISO 8302)
- Ball Pressure Test at 125°C: Pass (IEC 60695-10-2)
Optical Properties
- Light Transmission (2.54 mm): 88 – 90% (ASTM D1003)
- Haze (2.54 mm): <0.8% (ASTM D1003)
- Refractive Index: 1.586 (ASTM D542; ISO 489)
Electrical Properties
- Volume Resistivity: >1 × 10¹⁵ Ω·cm (ASTM D257; IEC 60093)
- 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)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 2 – 4 hours
- Maximum Moisture Content: 0.02%
- Melt Temperature: 280 – 300°C
- Mold Temperature: 80 – 100°C
- Nozzle Temperature: 270 – 290°C
- Hopper Temperature: 60 – 80°C
Features & Benefits
Superior Flow for Complex Molds
The high melt flow of VR1820 resin rate ensures easy filling of intricate mold geometries, reducing cycle times and improving production efficiency for detailed parts.
Outstanding Toughness and Clarity
This resin combines high impact resistance with excellent optical transparency, creating durable components that are both rugged and aesthetically clear, ideal for protective covers and lenses.
Built-in Stability for Demanding Environments
With inherent heat and UV stabilization, LEXAN VR1820 maintains its properties and appearance under thermal stress and outdoor exposure, ensuring long-term reliability.