Covestro Makrolon® 9425 PC Resin

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Makrolon PC Polycarbonate

Makrolon 9425 Polycarbonate Granules 20% glass fiber reinforced

Makrolon® 9425 by Covestro is a 20% glass fiber-reinforced, flame-retardant polycarbonate resin. With UL 94 V-0 (1.5mm) and 5VA (3.0mm) ratings, high viscosity, and easy-release properties, it excels in extrusion and injection molding. Ideal for opaque, high-safety industrial parts.

  • Character: 20% glass fiber reinforced; flame retardant; UL 94V-0/1.5 mm and 5VA/3.0 mm; high viscosity; easy release; injection molding – melt temperature 310 – 330°C.
  • Application: Injection molding; General purpose
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Key technical data

Mechanical Properties
  • Tensile Strength: 86 MPa | Flexural Strength: 135 MPa
  • Impact Strength (Charpy, 23°C): 40 kJ/m² | Notched Impact: 8 kJ/m²
  • Ball Indentation Hardness: 148 MPa
Thermal Performance
  • Heat Deflection Temp (1.8 MPa): 138°C | Vicat Softening Temp: 146°C
  • Thermal Conductivity: 0.23 W/(m·K) | CTI: 175 (Electrolytic Corrosion: A1)
Electrical & Safety
  • Volume Resistivity: 1E14 Ω·m | Surface Resistivity: 1E16 Ω
  • Density: 1340 kg/m³ | Water Absorption: 0.24% (saturated)
Processing (Optimal)
  • Melt Temp: 280–320°C | Mold Temp: 80–120°C
  • Drying: 120°C for 2–3 hours (max 0.02% moisture)

Application

  • Electrical Enclosures & Connectors: Flame-retardant safety in circuit breakers or control panels.
  • Automotive Components: Engine covers/sensors needing heat resistance and strength.
  • Industrial Machinery: Gears/brackets requiring stiffness and UL compliance.
  • Safety Equipment: Fire-rated housings for public infrastructure.

Download

Makrolon 9425 ISO Data SheetDownload

Features & Benefits

Superior Flame Resistance

UL 94 V-0/1.5mm and 5VA/3.0mm certification ensures critical fire safety for electrical components, reducing compliance risks in high-risk environments like power systems.

Enhanced Mechanical Strength

20% glass fiber reinforcement boosts tensile strength (86 MPa) and stiffness (5800 MPa), perfect for load-bearing parts like automotive housings or industrial gears needing durability.

Optimized Processing Efficiency

High viscosity (MVR 5.0 cm³/10 min) and easy-release properties streamline injection molding and extrusion, cutting cycle times and lowering production costs.

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