Covestro Makrolon® GF9002 PC Resin
Plastic Granules
Makrolon GF9002 PC Resin Flame Retardant
Covestro PC Makrolon GF9002 is a 10% glass fiber-reinforced, flame-retardant polycarbonate resin. With low viscosity (MVR 15 cm³/10 min) and UL 94V-0 certification at 1.2 mm, it ensures easy processing, excellent release, and safety for thin-wall electronic housings. Available exclusively in opaque colors.
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ISO TDS
Typical property data
Physical Properties (Rheological)
- Melt Volume-Flow Rate (MVR): 15 cm³/10 min (300 °C/1.2 kg) (ISO 1133)
- Melt Mass-Flow Rate (MFR): 16.5 g/10 min (300 °C/1.2 kg) (ISO 1133)
- Molding Shrinkage, Parallel: 0.50 % (60x60x2 mm³/500 bar) (ISO 294-4)
- Molding Shrinkage, Normal: 0.45 % (60x60x2 mm³/500 bar) (ISO 294-4)
Mechanical Properties (23 °C/50% r.h.)
- Tensile Modulus: 3900 MPa (1 mm/min) (ISO 527-1,-2)
- Yield Stress: 60 MPa (5 mm/min) (ISO 527-1,-2)
- Yield Strain: 4.5 % (5 mm/min) (ISO 527-1,-2)
- Stress at Break: 45 MPa (5 mm/min) (ISO 527-1,-2)
- Strain at Break: 10 % (5 mm/min) (ISO 527-1,-2)
- Flexural Modulus: 3700 MPa (2 mm/min) (ISO 178)
- Flexural Strength: 105 MPa (2 mm/min) (ISO 178)
- Charpy Impact Strength: > 100 kJ/m² (23 °C) (ISO 179/1eU)
- Charpy Notched Impact Strength: 8 kJ/m² (23 °C/3 mm) (ISO 21305, based on ISO 179/1eA)
- Puncture Impact Properties (Maximum Force): 3200 N (23 °C) (ISO 6603-2)
- Puncture Energy: 16 J (23 °C) (ISO 6603-2)
Thermal Properties
- Temperature of Deflection Under Load: 132 °C (1.80 MPa) (ISO 75-1,-2)
- Vicat Softening Temperature:
- 141 °C (50 N, 50 °C/h) (ISO 306)
- 142 °C (50 N, 120 °C/h) (ISO 306)
- Coefficient of Linear Thermal Expansion:
- Parallel: 0.4 x 10⁻⁴/K (23 to 55 °C) (ISO 11359-1,-2)
- Normal: 0.6 x 10⁻⁴/K (23 to 55 °C) (ISO 11359-1,-2)
- Burning Behavior (UL 94):
- 1.2 mm: V-0 Class (UL 94)
- 0.75 mm: V-1 Class (UL 94)
- Oxygen Index: 37 % (ISO 4589-2)
- Relative Temperature Index (RTI) [UL 746B]:
- Tensile Strength (0.75 mm): 80 °C
- Tensile Impact Strength (0.75 mm): 80 °C
- Electric Strength (0.75 mm): 80 °C
- Glow Wire Test (GWFI):
- 0.75 mm: 960 °C (IEC 60695-2-12)
- 1.5 mm: 960 °C (IEC 60695-2-12)
- 3.0 mm: 960 °C (IEC 60695-2-12)
- Glow Wire Test (GWIT):
- 1.5 mm: 800 °C (IEC 60695-2-13)
- 3.0 mm: 875 °C (IEC 60695-2-13)
Electrical Properties (23 °C/50% r.h.)
- Relative Permittivity:
- 100 Hz: 3.2 (IEC 60250)
- 1 MHz: 3.2 (IEC 60250)
- Dissipation Factor:
- 100 Hz: 10 x 10⁻⁴ (IEC 60250)
- 1 MHz: 90 x 10⁻⁴ (IEC 60250)
- Volume Resistivity: 1×10¹⁴ Ω·m (IEC 62631-3-1)
- Surface Resistivity: 1×10¹⁶ Ω (IEC 62631-3-2)
- Electrical Strength: 36 kV/mm (1 mm) (IEC 60243-1)
- Comparative Tracking Index (CTI):
- Solution A: 175 (IEC 60112)
- Solution B: 125M (IEC 60112)
Other Properties (23 °C)
- Water Absorption:
- Saturation Value: 0.30 % (ISO 62)
- Equilibrium Value (23 °C/50% r.h.): 0.10 % (ISO 62)
- Density: 1270 kg/m³ (ISO 1183-1)
- Glass Fiber Content: 10 % (ISO 3451-1)
- Bulk Density (Pellets): 640 kg/m³ (ISO 60)
Processing and Drying Conditions
- Injection Molding Conditions:
- Melt Temperature: 300 °C (ISO 294)
- Mold Temperature: 110 °C (ISO 294)
- Injection Velocity: 200 mm/s (ISO 294)
- Recommended Processing Conditions:
- Melt Temperature Range: 280–320 °C
- Standard Melt Temperature: 300 °C
- Barrel Temperatures:
- Rear: 250–260 °C
- Middle: 270–280 °C
- Front: 280–290 °C
- Nozzle: 290–300 °C
- Mold Temperature Range: 80–120 °C
- Hold Pressure: 50–75 % of injection pressure
- Plastic Back Pressure: 50–150 bar
- Peripheral Screw Speed: 0.05–0.2 m/s
- Shot-to-Cylinder Size: 30–70 %
- Drying Conditions:
- Dry Air Drying Temperature: 120 °C
- Dry Air Drying Time: 2–3 hours
- Maximum Moisture Content: ≤ 0.02 %
- Vent Depth: 0.025–0.075 mm
Use & Applications
- Injection-Molded Thin-Wall Housings: Smartphone components, micro-switch covers.
- Electrical/Electronic Parts: Connectors, circuit breakers, relay housings.
- Flame-Retardant Components: Power tool casings, automotive electronics.
Features & Benefits
Superior Flame Safety
UL 94V-0 certified (1.2 mm) and high oxygen index (37%). Ideal for electronics requiring stringent fire resistance, reducing compliance risks in high-heat environments.
Enhanced Dimensional Stability
10% glass fiber reinforcement minimizes shrinkage (0.45–0.50%) and boosts strength. Ensures precision in complex, thin-wall parts like connectors and housings.
Optimized Processing Efficiency
Low viscosity and easy mold release enable faster cycles. Recommended melt temp: 280–320°C. Lowers production costs while maintaining part consistency.
Makrolon® GF9002 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 |
|---|---|---|---|---|---|---|---|
| 9415 | 10% GF; high viscosity; 5VA | V-0 @1.5mm; 5VA @3.0mm | 6.0 cm³/10min | 136°C | Charpy 10C; Izod 10C | Opaque | No / N/A |
| 9417 | 10% GF; UV; 5VA | V-0 @1.5mm; 5VA @3.0mm | 6.0 cm³/10min | 135°C | Charpy 10C; Izod 10C | Opaque | Yes / N/A |
| 9125 | 20% GF; medium viscosity | V-0 @1.5mm; V-2 @0.36mm | 8.0 cm³/10min | 138°C | Charpy 8C; Izod 8C | Opaque | No / N/A |
| 9425 | 20% GF; high viscosity; 5VA | V-0 @1.5mm; 5VA @3.0mm | 5.0 cm³/10min | 138°C | Charpy 8C; Izod 8C | Opaque | No / N/A |