Covestro Makrolon® AL2447 RE PC Resin
Plastic Granules
Makrolon AL2447 RE Polycarbonate Granules
Makrolon® AL2447 RE by Covestro is a low-viscosity, UV-stabilized polycarbonate resin ideal for injection molding. Featuring easy mold release and exceptional optical clarity (89% light transmission at 1mm), it’s available in transparent and signal colors. This ISCC PLUS-certified bio-circular grade supports sustainability goals without compromising performance.
Associated Documents
ISO TDS
Typical property data
Physical Properties (Rheological)
- Melt Volume-Flow Rate (MVR): 19 cm³/10 min (ISO 1133, 300 °C/1.2 kg)
- Melt Mass-Flow Rate (MFR): 20 g/10 min (ISO 1133, 300 °C/1.2 kg)
- Molding Shrinkage (Parallel): 0.65% (ISO 294-4, 60x60x2 mm³/500 bar)
- Molding Shrinkage (Normal): 0.7% (ISO 294-4, 60x60x2 mm³/500 bar)
Mechanical Properties (23 °C/50% r.h.)
- Tensile Modulus: 2400 MPa (ISO 527-1,-2, 1 mm/min)
- Yield Stress: 66 MPa (ISO 527-1,-2, 50 mm/min)
- Yield Strain: 6.0% (ISO 527-1,-2, 50 mm/min)
- Nominal Strain at Break: >50% (ISO 527-1,-2, 50 mm/min)
- Tensile Creep Modulus (1 h): 2200 MPa (ISO 899-1)
- Tensile Creep Modulus (1000 h): 1900 MPa (ISO 899-1)
- Flexural Modulus: 2350 MPa (ISO 178, 2 mm/min)
- Flexural Strength: 98 MPa (ISO 178, 2 mm/min)
- Charpy Notched Impact Strength (23 °C, 3 mm): 65 kJ/m² (ISO 21305/ISO 179/1eA)
Thermal Properties
- Glass Transition Temperature: 145 °C (ISO 11357-1,-2, 10 °C/min)
- Temperature of Deflection Under Load (1.80 MPa): 125 °C (ISO 75-1,-2)
- Temperature of Deflection Under Load (0.45 MPa): 138 °C (ISO 75-1,-2)
- Vicat Softening Temperature (50 N, 50 °C/h): 144 °C (ISO 306)
- Burning Behavior: V-2 (UL 94, 0.75 mm)
- Oxygen Index: 28% (ISO 4589-2)
Electrical Properties (23 °C/50% r.h.)
- Relative Permittivity (100 Hz): 3.1 (IEC 60250)
- Relative Permittivity (1 MHz): 3.0 (IEC 60250)
- Volume Resistivity: 1E14 Ohm·m (IEC 62631-3-1)
- Surface Resistivity: 1E16 Ohm (IEC 62631-3-2)
- Electrical Strength: 34 kV/mm (IEC 60243-1)
Other Properties (23 °C)
- Density: 1200 kg/m³ (ISO 1183-1)
- Water Absorption (Saturation Value): 0.30% (ISO 62, Water at 23 °C)
- Water Absorption (Equilibrium Value): 0.12% (ISO 62, 23 °C; 50% r. h.)
- Luminous Transmittance (2 mm): 89% (ISO 13468-2, Clear Transparent Material)
Processing and Drying Conditions
- Melt Temperature: 280–320 °C
- Mold Temperature: 80–120 °C
- Drying Temperature: 120 °C
- Drying Time: 2–3 h
- Moisture Content (Max): ≤0.02%
Features & Benefits
Eco-Friendly Material Choice
Partially bio-circular via mass balance (ISCC PLUS), reducing carbon footprint while maintaining high-performance standards for eco-conscious manufacturing.
Superior Optical Clarity
It delivers >87% luminous transmittance (even at 4mm thickness) and <0.5% haze, ensuring crystal-clear visibility for precision lighting components.
Optimized Processing Efficiency
Low viscosity (19 cm³/10 min MVR) and easy-release properties cut cycle times and energy use, streamlining high-volume injection molding.
Use & Applications
- Automotive Headlamp Lenses: UV-resistant clarity for long-lasting forward lighting.
- Signal Lighting: Vibrant colors for traffic indicators/emergency systems.
- Optical Components: Thin-wall lenses, covers, and displays requiring scratch resistance.
- Industrial Housings: Durable enclosures for electrical/electronic parts.
- Consumer Goods: Transparent casings for appliances and wearables.
