Covestro Makrolon® 6455 PC Resin

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Makrolon PC Polycarbonate

Makrolon 6455 PC Resin Flame retardant grades

Covestro Makrolon 6455 is a flame-retardant, medium-viscosity polycarbonate resin ideal for injection molding. With UL 94V-0 certification (3.0 mm), easy release, and MVR 12 cm³/10 min (300°C/1.2 kg), it delivers safety and process efficiency. Available in transparent, translucent, and opaque colors.

  • Character: flame retardant; MVR (300 °C/1.2 kg) 12 cm³/10 min; UL 94V-0/3.0 mm; medium viscosity; easy release; available in transparent, translucent and opaque colors
  • Application: Injection molding
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Key technical data (ISO)

  • Tensile Modulus: 2,400 MPa | Flexural Strength: 98 MPa
  • Nominal Strain at Break: >50%
  • HDT @1.8 MPa: 124°C | Vicat Softening (50N): 143°C
  • Coefficient of Thermal Expansion: 0.65 x10⁻⁵/K
  • Electrical CTI: 225 (Solution A) | Volume Resistivity: 1E14 Ω·m
  • Glow Wire (GWFI): 960°C (3.0 mm) | Oxygen Index: 35%
  • Density: 1,200 kg/m³ | Water Absorption: 0.12% (equilibrium)

Download

Makrolon 6455 ISO Data SheetDownload

Application

  • Electrical/Electronics: Circuit breakers, fuse boxes, and connectors (UL-certified safety).
  • Automotive: Dashboard components, lighting housings (impact/cold resistance).
  • Industrial: Safety visors, machine guards (clarity + flame retardancy).
  • Consumer Tech: Power tool housings, charging stations (durability + design flexibility).
Covestro Makrolon 6455 application

Features & Benefits

Uncompromised Fire Safety

UL 94V-0 rated at 3.0 mm thickness, Makrolon 6455 meets strict flammability standards. Ideal for electrical enclosures, reducing fire risks in high-heat environments.

Toughness in Extreme Conditions

Charpy notched impact strength of 70 kJ/m² (23°C) and 14 kJ/m² (-30°C) ensures durability. Perfect for automotive or outdoor components exposed to impacts and cold.

Precision Molding, Zero Hassle

Medium flow (MVR 12 cm³/10 min) and low shrinkage (0.6–0.8%) enable complex designs with tight tolerances. Easy release cuts demolding time and rejects.

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Advanced Manufacturing

Extruder machine
High-speed mixer machine
Water ring pelletizer
Automatic bagging machine
Vibrating screening machine
Plastic rein material warehouse storage capacity
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