Covestro Makrolon® 2205 RE PC Resin
Makrolon 2205 RE Polycarbonate Granules Genaral Injection Molding Grade
Makrolon® 2205 RE is a versatile, low-viscosity polycarbonate resin designed for seamless injection molding. With an MVR of 34 cm³/10 min (300°C/1.2 kg), it offers excellent flow, easy release, and broad color versatility (transparent/translucent/opaque). Ideal for high-efficiency production of precision parts.
Associated Documents
ISO TDS
Typical property data
Physical Properties (Rheological)
- Melt Volume-Flow Rate (MVR): 34 cm³/10 min (300 °C/1.2 kg, ISO 1133)
- Melt Mass-Flow Rate (MFR): 37 g/10 min (300 °C/1.2 kg, ISO 1133)
- Molding Shrinkage (Parallel/Normal): 0.65% (60×60×2 mm³/500 bar, ISO 294-4)
- Molding Shrinkage Range: 0.5–0.7% (ISO 2577)
Mechanical Properties (23 °C / 50% r.h.)
- Tensile Modulus: 2400 MPa (1 mm/min, ISO 527-1,-2)
- Yield Stress: 65 MPa (50 mm/min, ISO 527-1,-2)
- Yield Strain: 6.0% (50 mm/min, ISO 527-1,-2)
- Flexural Modulus: 2350 MPa (2 mm/min, ISO 178)
- Flexural Strength: 97 MPa (2 mm/min, ISO 178)
- Charpy Notched Impact Strength:
- 55 kJ/m² (23 °C, 3 mm, ISO 21305/based on ISO 179/1eA)
- 12 kJ/m² (-30 °C, 3 mm, ISO 21305/based on ISO 179/1eA)
- Puncture Impact Properties:
- Maximum Force: 4900 N (23 °C, ISO 6603-2)
- Energy: 55 J (23 °C, ISO 6603-2)
Thermal Properties
- Glass Transition Temperature: 145 °C (10 °C/min, ISO 11357-1,-2)
- Temperature of Deflection Under Load (HDT):
- 124 °C (1.80 MPa, ISO 75-1,-2)
- 137 °C (0.45 MPa, ISO 75-1,-2)
- Vicat Softening Temperature: 145 °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: V-2 (0.75 mm, UL 94); HB (2.9 mm, UL 94)
Electrical Properties (23 °C / 50% r.h.)
- Relative Permittivity:
- 3.1 (100 Hz, IEC 60250)
- 3.0 (1 MHz, IEC 60250)
- Dissipation Factor:
- 5×10⁻⁴ (100 Hz, IEC 60250)
- 90×10⁻⁴ (1 MHz, IEC 60250)
- Volume Resistivity: 1×10¹⁴ Ohm·m (IEC 62631-3-1)
- Surface Resistivity: 1×10¹⁶ Ohm (IEC 62631-3-2)
- Electrical Strength: 34 kV/mm (1 mm, IEC 60243-1)
- Comparative Tracking Index (CTI): 250 (Solution A, IEC 60112)
Other Properties (23 °C)
- Water Absorption:
- 0.12% (Equilibrium, 23 °C/50% r.h., ISO 62)
- 0.30% (Saturation, Water at 23 °C, ISO 62)
- Density: 1190 kg/m³ (ISO 1183-1)
- Refractive Index: 1.586 (Procedure A, ISO 489)
- Luminous Transmittance (Clear Transparent Materials): 89% (2 mm, ISO 13468-2)
Processing and Drying Conditions
- Injection Molding Melt Temperature: 280–320 °C (ISO 294)
- Injection Molding Mold Temperature: 80 °C (ISO 294)
- Dry Air Drying Temperature & Time: 120 °C, 2–3 hours
- Moisture Content (Max): ≤ 0.02%
Features & Benefits
Effortless Molding & High Efficiency
Low viscosity ensures smooth flow into complex molds, reducing cycle times and energy use. Perfect for intricate components like thin-walled electronics housings.
Superior Impact Resistance
It withstands high-stress environments without cracking. Ideal for automotive components (e.g., connectors) and rugged consumer goods.
Optical Clarity & Versatility
It maintains 89% light transmission (1mm thickness) and low haze (<0.8%), suitable for lenses, displays, and aesthetic covers needing visual appeal.
Use & Applications
- Electronics: Smartphone cases, charger housings, and connectors.
- Automotive: Dashboard components, light covers, and sensor housings.
- Consumer Goods: Safety goggles, appliance panels, and tool handles.
- Industrial: Transparent machine guards and electrical enclosures.
