Covestro Makrolon® 6717 PC Resin
Makrolon 6717 PC Resin Flame Retardant Grades
Makrolon® 6717 is a flame-retardant, UV-stabilized polycarbonate resin with high viscosity and easy-release properties. It delivers UL 94 V-0 compliance at 2.0 mm thickness, excellent flow (MVR 3.0 cm³/10 min), and is available in transparent, translucent, and opaque colors for versatile design.
Plastic Granules
Download PDF
ISO TDS
MSDS
Typical Property Data
Physical Properties (Rheological)
- Melt Volume-Flow Rate (MVR): 3.0 cm³/10 min (300 °C/1.2 kg, ISO 1133)
- Melt Mass-Flow Rate (MFR): 3.0 g/10 min (300 °C/1.2 kg, ISO 1133)
- Molding Shrinkage (Parallel): 0.7 % (60 × 60 × 2 mm³/500 bar, ISO 294-4)
- Molding Shrinkage (Normal): 0.75 % (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: 67 MPa (50 mm/min, ISO 527-1,-2)
- Yield Strain: 6.4 % (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: 98 MPa (2 mm/min, ISO 178)
- Charpy Notched Impact Strength (23 °C): 70 kJ/m² (3 mm, ISO 21305 based on ISO 179/1eA)
Thermal Properties
- Glass Transition Temperature (Tg): 146 °C (10 °C/min, ISO 11357-1,-2)
- Deflection Temperature Under Load (1.80 MPa): 127 °C (ISO 75-1,-2)
- Deflection Temperature Under Load (0.45 MPa): 139 °C (ISO 75-1,-2)
- Vicat Softening Temperature: 146 °C (50 N, 50 °C/h, ISO 306)
- Burning Behavior: UL 94 V-0 (2.0 mm, UL 94)
Electrical Properties (23 °C/50 % r. h.)
- Relative Permittivity (100 Hz): 3.1 (IEC 60250)
- Relative Permittivity (1 MHz): 3.0 (IEC 60250)
- Volume Resistivity: 1E14 Ohm·m (IEC 62631-3-1)
- Surface Resistivity: 1E16 Ohm (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): 0.12 % (23 °C, 50 % r. h., ISO 62)
Processing and Drying Conditions
- Melt Temperature: 280–320 °C (Recommended)
- Injection Mold Temperature: 80–120 °C
- Drying Temperature: 120 °C
- Drying Time: 2–3 hours
- Moisture Content (Max.): ≤0.02 %
Use & Applications
- Electrical: Circuit breakers, EV battery covers
- Transportation: Aircraft interior panels (FAR 25.853 compliant), train components
- Industrial: Flame-retardant housings for power tools/machinery
- Consumer: Safety visors, smart device casings
- Lighting: LED diffusers (87% light transmittance @ 1mm)
Features & Benefits
Safety-Built Material
Makrolon 6717 achieves UL 94 V-0 flame retardancy at just 2.0 mm thickness, ideal for electrical enclosures or EV components where fire safety is critical.
Unmatched Toughness
With >105% strain at break (ISO 527) and high puncture resistance (65 J at -30°C), it withstands impacts in demanding environments like medical devices or industrial tools.
Processing Flexibility
Branched chain structure ensures smooth flow at 280–320°C melt temps, enabling complex thin-wall molding and reducing cycle times for high-volume production.
Makrolon® 6717 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 |
|---|---|---|---|---|---|---|---|
| 1804 | Extrusion; high viscosity; UV; sheet | V-2 @1.5mm; V-0 @6.0mm | 6.0 cm³/10min | 127°C | Charpy 80P; Izod 70P | T/T/O | Yes / N/A |
| 6557 | Medium viscosity; UV; transparent | V-2 @1.5mm; V-0 @3.0mm | 10 cm³/10min | 124°C | Charpy 70P(C); Izod 65P | T/T/O | Yes / N/A |
| 6457 | Medium viscosity; UV; transparent | V-2 @1.5mm; V-0 @3.0mm | 12 cm³/10min | 123°C | Charpy 70P(C); Izod 65P | T/O | Yes / N/A |
| FR7087 | Medium viscosity; UV; E/E | V-2 @1.5mm; V-0 @2.2mm; 5VA @3.0mm | 12 cm³/10min | 106°C | Izod 8C; 8C @-30°C | T/T | Yes / N/A |
👉 Full Portfolio: Browse all 27+ grades on the Covestro Flame Retardant PC Resin Hub.