Covestro Makrolon® 6265 X PC Resin
Makrolon 6265 X PC Resin Flame Retardant Grade
Makrolon® 6265 X is a flame-retardant, low-viscosity PC resin with excellent flow (MVR 19 cm³/10min) and UL 94V-0 compliance at 1.5mm. Ideal for complex injection molding, it ensures easy release and high safety in opaque applications.
Plastic Granules
Typical property data
Physical Properties (Rheological)
- Melt Volume-Flow Rate (MVR): 19 cm³/10 min (300 °C/1.2 kg) (ISO 1133)
- Melt Mass-Flow Rate (MFR): 20 g/10 min (300 °C/1.2 kg) (ISO 1133)
- Molding Shrinkage (Parallel/Normal): 0.65% (60x60x2 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)
- Nominal Strain at Break: >50% (50 mm/min) (ISO 527-1, -2)
- Tensile Creep Modulus:
- 1 h: 2200 MPa (ISO 899-1)
- 1000 h: 1900 MPa (ISO 899-1)
- Flexural Modulus: 2400 MPa (2 mm/min) (ISO 178)
- Flexural Strength: 96 MPa (2 mm/min) (ISO 178)
- Charpy Notched Impact Strength:
- 23 °C: 65 kJ/m² (ISO 21305/ISO 179/1eA)
- -30 °C: 12 kJ/m² (ISO 21305/ISO 179/1eA)
- Izod Notched Impact Strength:
- 23 °C: 50 kJ/m² (ISO 21305/ISO 180/A)
- -30 °C: 11 kJ/m² (ISO 21305/ISO 180/A)
Thermal Properties
- Glass Transition Temperature: 144 °C (10 °C/min) (ISO 11357-1, -2)
- Deflection Temperature Under Load:
- 1.80 MPa: 124 °C (ISO 75-1, -2)
- 0.45 MPa: 137 °C (ISO 75-1, -2)
- Vicat Softening Temperature:
- 50 N, 50 °C/h: 145 °C (ISO 306)
- 50 N, 120 °C/h: 146 °C (ISO 306)
- Burning Behavior: UL 94 V-0 (1.5 mm) (UL 94)
- Oxygen Index: 36% (ISO 4589-2)
- Thermal Conductivity: 0.20 W/(m·K) (23 °C, 50% r.h.) (ISO 8302)
Electrical Properties (23 °C / 50% r.h.)
- Relative Permittivity:
- 100 Hz: 3.1 (IEC 60250)
- 1 MHz: 3.0 (IEC 60250)
- Dissipation Factor:
- 100 Hz: 8×10−48 \times 10^{-4} (IEC 60250)
- 1 MHz: 90×10−490 \times 10^{-4} (IEC 60250)
- Volume Resistivity: 1×10141 \times 10^{14} Ohm·m (IEC 62631-3-1)
- Surface Resistivity: 1×10161 \times 10^{16} Ohm (IEC 62631-3-2)
- Electrical Strength: 34 kV/mm (1 mm) (IEC 60243-1)
- Comparative Tracking Index (CTI):
- Solution A: 225 (IEC 60112)
- Solution B: 125M (IEC 60112)
Other Properties (23 °C)
- Water Absorption (Saturation): 0.30% (ISO 62)
- Water Absorption (Equilibrium): 0.12% (23 °C/50% r.h.) (ISO 62)
- Density: 1200 kg/m³ (ISO 1183-1)
- Bulk Density (Pellets): 640 kg/m³ (ISO 60)
Processing and Drying Conditions
- Injection Molding:
- Melt Temperature: 280 – 320 °C (ISO 294)
- Mold Temperature: 80 – 120 °C (ISO 294)
- Injection Velocity: 200 mm/s (ISO 294)
- Drying:
- Air Drying Temperature: 120 °C
- Drying Time: 2 – 3 hours
- Maximum Moisture Content: ≤0.02%
Use & Applications
- Electrical: Connectors, circuit breakers, and enclosures.
- Automotive: EV battery housings, interior trim, and sensor covers.
- Industrial: Machinery guards, safety components, and tool housings.
- Consumer Tech: Power tool casings and appliance housings.
Features & Benefits
Superior Flame Safety
UL 94V-0 certified (1.5mm) with a 36% oxygen index, this pc makrolon 6265 x minimizes fire risks in electronics and automotive parts, meeting strict safety regulations effortlessly.
Effortless High-Flow Molding
Low viscosity (19 cm³/10min) enables seamless filling of intricate molds—reducing cycle times and energy use while maintaining precision in thin-walled components.
Reliable Durability & Stability
High tensile strength (65 MPa) and impact resistance (6 kJ/m² at 23°C) ensure long-lasting performance in harsh environments, from freezing temps to mechanical stress.
Makrolon® 6265 X Related Flame Retardant Grades
Disclaimer: Grades below are potential alternatives for comparison only. Not direct drop-in replacements. Typical values from Covestro ISO TDS; verify UL94 colors/thickness on current UL Yellow Card. RoHS/REACH/halogen/PFAS status not confirmed unless report provided.
| Grade | Positioning | UL94 (ISO TDS) | MVR | HDT (1.80 MPa) | Notched Impact (23°C/3mm) | Color | UV / UL 746C f1 |
|---|---|---|---|---|---|---|---|
| 6267 X | Low viscosity; UV; opaque | V-0 @1.5mm | 19 cm³/10min | 122°C | Charpy 60P(C); Izod 15P(C) | Opaque | Yes / N/A |
| 6265 X RE25 CQ | Bio-circular (ISCC PLUS); low viscosity | V-0 @1.5mm | 19 cm³/10min | 124°C | Charpy 65P(C); Izod 50P(C) | Opaque | No / N/A |
| 6265 X RE CQ | Bio-circular; low viscosity | V-0 @1.5mm | 19 cm³/10min | 124°C | Charpy 65P(C); Izod 50P(C) | Opaque | No / N/A |
| FR6002 | Low viscosity FR; injection molding | V-0 @0.75/1.5/3.0mm | 18 cm³/10min | 124°C | Izod 15P(C) | WT/GY/BK | No / N/A |
👉 Full Portfolio: Browse all 27+ grades on the Covestro Flame Retardant PC Resin Hub.