Covestro Makrolon® 2207 PC Resin
Plastic Granules
Makrolon® 2207 Polycarbonate PC Resin Injection molding Grade
Makrolon® 2207 is a general-purpose, low-viscosity polycarbonate resin from Covestro. Engineered for injection molding, it offers excellent clarity, dimensional stability, and strength—ideal for demanding industrial applications.
Typical property data
Physical Properties (Rheological)
- Melt Volume-Flow Rate: 34 cm³/10 min (300 °C/1.2 kg, ISO 1133)
- Melt Mass-Flow Rate: 37 g/10 min (300 °C/1.2 kg, ISO 1133)
- Molding Shrinkage (Parallel/Normal): 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: 98 MPa (2 mm/min, ISO 178)
- Charpy Notched Impact Strength: 55 kJ/m² (23 °C, ISO 21305/ISO 179/1eA)
- Puncture Energy: 55 J (23 °C, ISO 6603-2)
Thermal Properties
- Glass Transition Temperature: 144 °C (ISO 11357-1,-2)
- Temperature of Deflection Under Load:
- 123 °C (1.80 MPa, ISO 75-1,-2)
- 136 °C (0.45 MPa, ISO 75-1,-2)
- Vicat Softening Temperature: 143 °C (50 N, 50 °C/h, ISO 306)
- 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)
- Dissipation Factor: 5×10−45 \times 10^{-4} (100 Hz, IEC 60250)
- Volume Resistivity: 1×10141 \times 10^{14} Ohm·m (IEC 62631-3-1)
- Electrical Strength: 34 kV/mm (1 mm, IEC 60243-1)
Other Properties (23 °C)
- Water Absorption (Saturation Value): 0.30% (ISO 62)
- Density: 1190 kg/m³ (ISO 1183-1)
- Refractive Index: 1.586 (ISO 489)
Processing and Drying Conditions
- Melt Temperature: 280–320 °C (Recommended: 300 °C, ISO 294)
- Mold Temperature: 80–120 °C (ISO 294)
- Drying Temperature: 120 °C
- Drying Time: 2–3 hours
- Moisture Content (Max): ≤ 0.02%
Features & Benefits
Effortless Injection Molding
Makrolon 2207’s low viscosity (MVR 35 cm³/10 min) ensures smooth flow into intricate molds, reducing cycle times and minimizing defects like air traps—ideal for high-volume precision parts.
Toughness in Extreme Conditions
It boasts Charpy notched impact strength of 55 kJ/m² at 23°C and retains performance at -30°C, making it perfect for automotive or outdoor gear exposed to impacts and temperature swings.
Heat & Flame Resistance
With a heat deflection temperature of 123°C (1.8 MPa) and UL 94 V-2 flame rating (0.75 mm), it ensures safety and stability in electronics and enclosures near heat sources.
Use & Applications
- Durable enclosures: Electrical housings, power tools, and control panels.
- Automotive parts: Interior trim, light covers, and connectors.
- Consumer goods: Transparent containers, sports equipment, and appliance components.
- Industrial hardware: Protective shields, gears, and structural supports.
