Covestro Makrolon® 6267 X PC Resin
Makrolon 6267 X PC Resin Flame Retardant
Makrolon® 6267 X is a flame-retardant, low-viscosity polycarbonate resin with UL 94V-0 certification (1.5mm). Its easy-release properties, UV stabilization, and 19 cm³/10 min flow rate (300°C/1.2 kg) simplify injection molding of opaque safety-critical components like electrical housings.
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ISO TDS
Typical property data
Physical Properties (Rheological)
- Melt Volume-Flow Rate (300 °C/1.2 kg): 19 cm³/10 min (ISO 1133)
- Melt Mass-Flow Rate (300 °C/1.2 kg): 20 g/10 min (ISO 1133)
- Molding Shrinkage (Parallel): 0.65% (ISO 294-4)
- Molding Shrinkage (Normal): 0.65% (ISO 294-4)
- Molding Shrinkage Range: 0.5–0.7% (ISO 2577)
Mechanical Properties (23 °C/50 % r. h.)
- Tensile Modulus: 2450 MPa (ISO 527-1,-2)
- Yield Stress: 67 MPa (ISO 527-1,-2)
- Yield Strain: 6.0% (ISO 527-1,-2)
- Nominal Strain at Break: >50% (ISO 527-1,-2)
- Stress at Break: 65 MPa (ISO 527-1,-2)
- Strain at Break: 120% (ISO 527-1,-2)
- Flexural Modulus: 2400 MPa (ISO 178)
- Flexural Strength: 97 MPa (ISO 178)
- Charpy Notched Impact Strength (23 °C, 3 mm): 60 kJ/m² (ISO 21305/ISO 179/1eA)
- Charpy Notched Impact Strength (-30 °C, 3 mm): 12 kJ/m² (ISO 21305/ISO 179/1eA)
- Puncture Impact Max Force (23 °C): 5000 N (ISO 6603-2)
- Puncture Energy (23 °C): 50 J (ISO 6603-2)
Thermal Properties
- Temperature of Deflection Under Load (1.80 MPa): 122 °C (ISO 75-1,-2)
- Temperature of Deflection Under Load (0.45 MPa): 134 °C (ISO 75-1,-2)
- Vicat Softening Temperature (50 N, 50 °C/h): 144 °C (ISO 306)
- Coefficient of Linear Thermal Expansion (Parallel): 0.65×10−40.65 \times 10^{-4}/K (ISO 11359-1,-2)
- Burning Behavior (1.5 mm): UL 94 V-0 (UL 94)
- Oxygen Index: 36% (ISO 4589-2)
Electrical Properties (23 °C/50 % r. h.)
- Relative Permittivity (100 Hz): 3.1 (IEC 60250)
- Dissipation Factor (100 Hz): 8×10−48 \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 (1 mm): 34 kV/mm (IEC 60243-1)
Other Properties (23 °C)
- Water Absorption (Saturation Value): 0.30% (ISO 62)
- Water Absorption (Equilibrium Value): 0.12% (ISO 62)
- Density: 1200 kg/m³ (ISO 1183-1)
Processing and Drying Conditions
- Injection Molding Melt Temperature: 280–320 °C (ISO 294)
- Mold Temperature: 80–120 °C (ISO 294)
- Dry Air Drying Temperature: 120 °C
- Dry Air Drying Time: 2–3 hours
- Moisture Content (Max): ≤0.02%
Use & Applications
- Flame-Safe Electricals: Circuit breakers, switchgear housings.
- Automotive Electronics: EV battery covers, sensor modules.
- Industrial Hardware: Machine guards, tool housings.
- Consumer Tech: Power adapters, LED lighting components.
Features & Benefits
Flame Retardancy & Safety Compliance
UL 94V-0 rated at 1.5mm and oxygen index of 36%, this pc makrolon 6267 x prevents fire spread in high-risk settings. Ideal for electrical enclosures in public spaces.
Low Viscosity & Easy Processing
With MVR 19 cm³/10 min, Makrolon® 6267 X fills complex molds effortlessly. Reduces cycle times and energy use for cost-efficient mass production.
Robust Mechanical Performance
67 MPa yield stress and 60 kJ/m² impact strength ensure durability. Perfect for automotive or industrial parts facing drops/vibration.
Makrolon® 6267 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 |
|---|---|---|---|---|---|---|---|
| 6265 X | Low viscosity; opaque; no UV | 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; low viscosity; UV | V-0 @1.5mm | 19 cm³/10min | 122°C | Charpy 60P(C); Izod 15P(C) | Opaque | Yes / N/A |
| 6487 | Medium viscosity; 5VA; UV; opaque | V-0 @1.5mm; 5VA @3.0mm | 9.0 cm³/10min | 122°C | Charpy 70P(C); Izod 70P(C) | Opaque | Yes / N/A |
| 2467 | Low viscosity; UV; transparent | V-2 @0.75mm; V-0 @6.4mm | 19 cm³/10min | 124°C | Charpy 65P(C); Izod 60P | T/T/O | Yes / N/A |