Covestro Makrolon® 6265 X RE CQ
Plastic Granules
Makrolon 6265 X RE CQ PC Resin
Makrolon 6265 X RE CQ is a flame-retardant, low-viscosity polycarbonate resin with UL 94V-0 certification (1.5 mm), MVR 19 cm³/10 min (300°C/1.2 kg), and easy-release properties. This partially bio-circular grade uses mass balance attribution (ISCC PLUS) for sustainability, available exclusively in opaque colors. Ideal for demanding industrial applications.
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ISO TDS
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% (60 × 60 × 2 mm³, 500 bar, ISO 294-4)
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)
- 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)
- Puncture Impact Properties (Maximum Force, -30 °C): 5900 N (ISO 6603-2)
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)
- Vicat Softening Temperature: 145 °C (50 N, 50 °C/h, ISO 306)
- Burning Behavior: V-0 (1.5 mm, UL 94)
Electrical Properties (23 °C/50 % r. h.)
- Relative Permittivity (100 Hz): 3.1 (IEC 60250)
- Dissipation Factor (1 MHz): 90 × 10⁻⁴ (IEC 60250)
- Volume Resistivity: 1×10141 \times 10^{14} Ω·m (IEC 62631-3-1)
- Surface Resistivity: 1×10161 \times 10^{16} Ω (IEC 62631-3-2)
- Electrical Strength: 34 kV/mm (1 mm, IEC 60243-1)
Other Properties (23 °C)
- Density: 1200 kg/m³ (ISO 1183-1)
- Water Absorption (Equilibrium at 23 °C; 50 % r. h.): 0.12% (ISO 62)
Processing and Drying Conditions
- Injection Molding Melt Temperature: 280–320 °C (ISO 294)
- Mold Temperature: 80–120 °C (ISO 294)
- Drying Temperature: 120 °C
- Drying Time: 2–3 hours
Features & Benefits
Superior Flame Safety & Compliance
It achieves UL 94V-0 (1.5 mm) and high glow-wire resistance (960°C), ensuring compliance in electronics and automotive sectors. Reduces fire risks and simplifies regulatory approvals.
Renewable Content, Reduced Footprint
ISCC PLUS-certified bio-circular attribution lowers carbon emissions without sacrificing performance. Supports ESG goals while meeting technical specs like 65 MPa tensile strength.
Easy Processing, High Efficiency
Low viscosity (19 cm³/10 min MVR) and optimized mold release cut cycle times. Ideal for complex injection-molded parts like connectors or housings.
Use & Applications
- Electrical: Connectors, circuit breakers, EV charging housings.
- Industrial: Flame-retardant enclosures, tool housings, safety equipment.
- Consumer: Power tools, appliance parts requiring opaque finishes.
Makrolon® 6265 X RE CQ 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 |
|---|---|---|---|---|---|---|---|
| 6265 X | Parent grade (fossil); low viscosity | V-0 @1.5mm | 19 cm³/10min | 124°C | Charpy 65P(C); Izod 50P(C) | Opaque | No / N/A |
| 6265 X RE25 CQ | Bio-circular (lower RE %) | V-0 @1.5mm | 19 cm³/10min | 124°C | Charpy 65P(C); Izod 50P(C) | Opaque | No / N/A |
| 6267 X RE CQ | Bio-circular; UV; opaque | V-0 @1.5mm | 19 cm³/10min | 122°C | Charpy 60P(C); Izod 15P(C) | Opaque | Yes / N/A |
| 6487 RE | Bio-circular (ISCC PLUS); 5VA; UV | V-0 @1.5mm; 5VA @3.0mm | 9.0 cm³/10min | 122°C | Charpy 70P(C); Izod 70P(C) | Opaque | Yes / N/A |