Covestro Makrolon® AL2447 RP70 CQ PC Resin
Plastic Granules
Makrolon AL2447 RP70 CQ Polycarbonate Granules
Makrolon® AL2447 RP70 CQ is a UV-stable, optically clear polycarbonate resin with partial circular recycled content (ISCC PLUS-certified). Ideal for demanding applications, it offers high transparency, durability, and sustainability—perfect for automotive lighting and precision components.
Associated Documents
ISO TDS
Typical property data
Physical Properties (Rheological)
- Melt Volume-Flow Rate (300 °C/1.2 kg): 19 cm³/10 min (ISO 1133)
- Melt Mass-Flow Rate (300 °C/1.2 kg): 20 g/10 min (ISO 1133)
- Molding Shrinkage (parallel, 60x60x2 mm, 500 bar): 0.65% (ISO 294-4)
- Molding Shrinkage (normal, 60x60x2 mm, 500 bar): 0.7% (ISO 294-4)
Mechanical Properties (23 °C/50 % r.h.)
- Tensile Modulus (1 mm/min): 2400 MPa (ISO 527-1,-2)
- Yield Stress (50 mm/min): 66 MPa (ISO 527-1,-2)
- Yield Strain (50 mm/min): 6.0% (ISO 527-1,-2)
- Nominal Strain at Break (50 mm/min): >50% (ISO 527-1,-2)
- Stress at Break (5 mm/min): 70 MPa (ISO 527-1,-2)
- Strain at Break (5 mm/min): 130% (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 (2 mm/min): 2350 MPa (ISO 178)
- Flexural Strength (2 mm/min): 98 MPa (ISO 178)
- Charpy Notched Impact Strength (23 °C, 3 mm): 65P (ISO 21305/based on ISO 179/1eA)
- Charpy Notched Impact Strength (-30 °C, 3 mm): 14C (ISO 21305/based on ISO 179/1eA)
Thermal Properties
- Glass Transition Temperature (10 °C/min): 145 °C (ISO 11357-1,-2)
- Deflection Temperature Under Load (1.8 MPa): 125 °C (ISO 75-1,-2)
- Deflection Temperature Under Load (0.45 MPa): 138 °C (ISO 75-1,-2)
- Vicat Softening Temperature (50 N; 50 °C/h): 144 °C (ISO 306)
- Coefficient of Linear Thermal Expansion (23–55 °C, parallel): 0.65 × 10⁻⁴/K (ISO 11359-1,-2)
- Thermal Conductivity (23 °C): 0.20 W/(m·K) (ISO 8302)
Electrical Properties (23 °C/50 % r.h.)
- Relative Permittivity (100 Hz): 3.1 (IEC 60250)
- Dissipation Factor (100 Hz): 5 × 10⁻⁴ (IEC 60250)
- Volume Resistivity: 1E14 Ohm·m (IEC 62631-3-1)
- Surface Resistivity: 1E16 Ohm (IEC 62631-3-2)
- Electrical Strength (1 mm): 34 kV/mm (IEC 60243-1)
Other Properties (23 °C)
- Water Absorption (Saturation): 0.30% (ISO 62)
- Water Absorption (Equilibrium at 50% r.h.): 0.12% (ISO 62)
- Density: 1200 kg/m³ (ISO 1183-1)
Processing and Drying Conditions
- Injection Molding Melt Temperature: 280–320 °C (ISO 294)
- Mold Temperature: 80–120 °C (ISO 294)
- Dry Air Drying Temperature: 120 °C
- Drying Time: 2–3 hours
- Moisture Content (Max.): ≤ 0.02%
Features & Benefits
Sustainable Circular Solution
This chemically recycled grade uses post-consumer material via mass balance attribution (ISCC PLUS), reducing environmental impact without compromising performance—ideal for eco-driven manufacturing.
Superior Optical Clarity & UV Resistance
It delivers 89% luminous transmittance (1–3 mm thickness) and UV stabilization, ensuring long-term color stability and clarity for lenses and transparent parts exposed to sunlight.
High Impact & Thermal Resilience
It features exceptional toughness (65 kJ/m² Charpy notched impact at 23°C) and heat resistance (125°C deflection under load), guaranteeing reliability in extreme conditions.
Use & Applications
- Automotive Headlamp Lenses
- LED Lighting Components
- Industrial Transparent Covers
- Safety Signal Housings
- Consumer Electronics Displays
