Covestro Makrolon® AL2647 RE CQ PC Resin
Makrolon AL2647 RE CQ Polycarbonate Granules
Makrolon® AL2647 RE CQ is a medium-viscosity, UV-stabilized polycarbonate resin featuring easy mold release and partial bio-circular content via ISCC PLUS mass balance. Ideal for injection molding, it delivers exceptional clarity in transparent/signal colors for demanding applications like automotive lighting.
Associated Documents
ISO TDS
Typical property data
Physical Properties (Rheological)
- Melt Volume-Flow Rate (MVR): 12 cm³/10 min (300 °C/1.2 kg, ISO 1133)
- Melt Mass-Flow Rate (MFR): 13 g/10 min (300 °C/1.2 kg, ISO 1133)
- Molding Shrinkage (Parallel): 0.7% (60 × 60 × 2 mm³/500 bar, ISO 294-4)
- Molding Shrinkage (Normal): 0.75% (60 × 60 × 2 mm³/500 bar, ISO 294-4)
Mechanical Properties (23 °C/50% r. h.)
- Tensile Modulus: 2400 MPa (1 mm/min, ISO 527-1, -2)
- Yield Stress: 67 MPa (50 mm/min, ISO 527-1, -2)
- Yield Strain: 6.1% (50 mm/min, ISO 527-1, -2)
- Nominal Strain at Break: > 50% (50 mm/min, ISO 527-1, -2)
- Tensile Creep Modulus (1 h): 2200 MPa (ISO 899-1)
- Tensile Creep Modulus (1000 h): 1900 MPa (ISO 899-1)
- Flexural Modulus: 2400 MPa (2 mm/min, ISO 178)
- Flexural Strength: 98 MPa (2 mm/min, ISO 178)
- Charpy Notched Impact Strength (23 °C, 3 mm): 70 kJ/m² (ISO 21305/ISO 179/1eA)
- Charpy Notched Impact Strength (-30 °C, 3 mm): 14 kJ/m² (ISO 21305/ISO 179/1eA)
- Puncture Impact Maximum Force (23 °C): 5400 N (ISO 6603-2)
- Puncture Energy (23 °C): 60 J (ISO 6603-2)
Thermal Properties
- Glass Transition Temperature: 144 °C (10 °C/min, ISO 11357-1, -2)
- Temperature of Deflection Under Load (1.80 MPa): 123 °C (ISO 75-1, -2)
- Temperature of Deflection Under Load (0.45 MPa): 136 °C (ISO 75-1, -2)
- Vicat Softening Temperature: 143 °C (50 N, 50 °C/h, ISO 306)
- Coefficient of Linear Thermal Expansion (Parallel/Normal): 0.65 × 10⁻⁴/K (23–55 °C, ISO 11359-1, -2)
- Burning Behavior (UL 94): V-2 (0.75 mm), HB (2.5 mm)
Electrical Properties (23 °C/50% r. h.)
- Relative Permittivity (100 Hz): 3.1 (IEC 60250)
- Relative Permittivity (1 MHz): 3.0 (IEC 60250)
- Dissipation Factor (100 Hz): 0.0005 (IEC 60250)
- Dissipation Factor (1 MHz): 0.0090 (IEC 60250)
- Volume Resistivity: 1 × 10¹⁴ Ω·m (IEC 62631-3-1)
- Surface Resistivity: 1 × 10¹⁶ Ω (IEC 62631-3-2)
- Electrical Strength: 34 kV/mm (1 mm, IEC 60243-1)
- Comparative Tracking Index (CTI): 250 (IEC 60112)
Other Properties (23 °C)
- Density: 1200 kg/m³ (ISO 1183-1)
- Water Absorption (Saturation Value): 0.30% (23 °C, ISO 62)
- Water Absorption (Equilibrium Value): 0.12% (23 °C, 50% r. h., ISO 62)
Processing and Drying Conditions
- Injection Molding Melt Temperature: 280–320 °C (ISO 294)
- Mold Temperature: 80–120 °C (ISO 294)
- Drying Temperature: 120 °C (Dry Air)
- Drying Time: 2–3 hours
- Moisture Content (Max.): ≤ 0.02%
Features & Benefits
Sustainable Performance
This ISCC PLUS-certified resin uses bio-circular raw materials, reducing carbon footprint without compromising quality—perfect for eco-conscious automotive supply chains.
Optical Precision & Durability
With >87% light transmittance (4mm) and UV stabilization, it withstands weathering and maintains clarity for high-stress components like headlamp lenses.
Optimized Processing
Wide melt temperature range (280–320°C), low shrinkage (0.6–0.8%), and easy-release properties boost production efficiency and part consistency.
Use & Applications
- Headlamp lenses (forward lighting systems)
- Signal lights (e.g., indicators, brake lights)
- Exterior light housings requiring UV/weather resistance
