Covestro Makrolon® 2205 PC Resin
Plastic Granules
Makrolon® 2205 Polycarbonate PC Resin Injection molding Grade
Makrolon 2205 is a general-purpose, low-viscosity polycarbonate resin engineered for high-performance injection molding. With balanced mechanical strength, thermal stability, and electrical insulation, it’s ideal for demanding industrial applications where precision and reliability are non-negotiable.
Associated Documents
ISO TDS
Typical property data
Physical Properties (Rheological)
- Melt volume-flow rate: 34 cm³/10 min (ISO 1133, at 300 °C/1.2 kg)
- Melt mass-flow rate: 37 g/10 min (ISO 1133, at 300 °C/1.2 kg)
- Molding shrinkage (parallel): 0.65% (ISO 294-4, 60x60x2 mm³ at 500 bar)
- Molding shrinkage (normal): 0.65% (ISO 294-4, 60x60x2 mm³ at 500 bar)
- Molding shrinkage range (parallel/normal): 0.5–0.7% (ISO 2577, practical experience-based)
Mechanical Properties (23 °C/50 % r. h.)
- Tensile modulus: 2400 MPa (ISO 527-1,-2, at 1 mm/min)
- Yield stress: 65 MPa (ISO 527-1,-2, at 50 mm/min)
- Yield strain: 6.0% (ISO 527-1,-2, at 50 mm/min)
- Nominal strain at break: > 50% (ISO 527-1,-2, at 50 mm/min)
- Stress at break: 60 MPa (ISO 527-1,-2, at 50 mm/min)
- Tensile creep modulus (1 h): 2100 MPa (ISO 899-1)
- Tensile creep modulus (1000 h): 1700 MPa (ISO 899-1)
- Flexural modulus: 2350 MPa (ISO 178, at 2 mm/min)
- Flexural strength: 97 MPa (ISO 178, at 2 mm/min)
- Charpy notched impact strength (23 °C, 3 mm): 55 kJ/m² (ISO 21305/based on ISO 179/1eA)
- Izod notched impact strength (23 °C, 3 mm): 55 kJ/m² (ISO 21305/based on ISO 180/A)
Thermal Properties
- Glass transition temperature: 145 °C (ISO 11357-1,-2, at 10 °C/min)
- Temperature of deflection under load (1.80 MPa): 124 °C (ISO 75-1,-2)
- Temperature of deflection under load (0.45 MPa): 137 °C (ISO 75-1,-2)
- Vicat softening temperature: 145 °C (ISO 306, at 50 N/50 °C/h)
- Burning behavior (UL 94): V-2 (0.75 mm) and HB (2.9 mm) (UL 94)
- 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)
- 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: 34 kV/mm (IEC 60243-1)
Other Properties (23 °C)
- Density: 1190 kg/m³ (ISO 1183-1)
- Water absorption (saturation): 0.30% (ISO 62, at 23 °C)
- Water absorption (equilibrium): 0.12% (ISO 62, at 23 °C, 50 % r. h.)
Processing and Drying Conditions
- 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
Exceptional Processability & Flow
The low melt viscosity (37 g/10 min) ensures effortless filling of complex molds, reducing cycle times and energy costs. Perfect for intricate parts like thin-walled electronics housings.
Reliable Mechanical Toughness
It boasts high tensile strength (65 MPa) and impact resistance (non-break Charpy at 23°C), ensuring durability in rugged environments. Ideal for automotive components or protective gear.
Thermal & Electrical Stability
It withstands 137°C under load (0.45 MPa) and offers strong electrical insulation (volume resistivity: 1E14 Ω·m). Suited for electrical connectors and heat-exposed industrial parts.
Features & Benefits
- Injection-molded industrial parts: Gears, housings, and tool handles.
- Electrical components: Connectors, switches, and enclosures.
- Consumer goods: Appliance casings, power tool bodies.
- Automotive: Interior trim, sensor housings.
- Lighting: LED covers and diffusers (88% light transmission at 3mm).
