Covestro Makrolon® 6457 PC Resin

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Makrolon PC Polycarbonate

Makrolon 6457 PC Resin Flame retardant grades

Covestro Makrolon 6457 is a flame-retardant, medium-viscosity polycarbonate resin offering UL 94V-0 compliance (3.0 mm), UV stability, easy mold release, and 12 cm³/10 min flowability. Ideal for injection molding (280–320°C), it’s available in transparent/opaque hues for demanding technical applications.

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

  • Tensile Strength: 67 MPa | Flexural Modulus: 2,400 MPa
  • Notched Impact (23°C): 65 kJ/m² (ISO 180) | Puncture Energy: 60 J
  • HDT (1.8 MPa): 123°C | Glass Transition: 144°C
  • UL RTI (Electrical): 125°C | Glow Wire (GWFI 3.0 mm): 960°C
  • CTI: 225 (Solution A) | Volume Resistivity: 1E14 Ω·m
  • Water Absorption: 0.12% (50% RH) | Density: 1,200 kg/m³

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Makrolon 6457 ISO Data SheetDownload

Application

  • Electrical Safety: Circuit breakers, switch housings (UL V-0 compliance).
  • Transparent Enclosures: Meter covers, LED diffusers (UV stability + clarity).
  • Industrial Components: Flame-retardant connectors, tool housings.
  • Transportation: Interior panels, lighting components (FMVSS burn rate passed).
Covestro Makrolon 6457 application

Features & Benefits

Safety-Compliant Flame Resistance

It achieves UL 94V-0 rating at 3.0 mm thickness, enabling use in electrical/electronic components without secondary fireproofing. Reduces compliance costs and simplifies design.

Optical Clarity + Durability

It boasts 89% light transmission (1–2 mm) with UV stabilization, resisting yellowing in outdoor/light-exposed settings. Ideal for transparent covers, lenses, and displays.

Optimized Processing Efficiency

Medium viscosity (12 cm³/10 min MVR) and easy-release additives ensure fast cycle times and minimal mold fouling. Lowers production downtime and maintenance costs.

Related Makrolon® PC Plastics

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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