Covestro Makrolon® 6555 RE CQ

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Makrolon PC Polycarbonate

Makrolon 6555 RE CQ PC Resin

Makrolon 6555 RE CQ is Covestro’s flame-retardant polycarbonate resin with medium viscosity (MVR 10 cm³/10 min) and UL 94V-0 certification (3.0 mm). Optimized for injection molding (280–320°C melt temp), it offers easy release, transparency/color versatility, and ISCC PLUS-certified bio-circular sustainability via mass balance.

  • Character: MVR (300 °C/1.2 kg) 10 cm³/10 min; flame retardant; UL 94V-0/3.0 mm; medium viscosity; easy release; injection molding – melt temperature 280 – 320 °C; available in transparent, translucent and opaque colors; CQ renewable attributed.
  • Application: Electronics, Automotive, Industrial, Consumer Tech
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Key technical data (ISO)

  • Tensile Modulus: 2,400 MPa | Flexural Strength: 98 MPa
  • Impact Resistance: Notched Charpy (23°C): 70 kJ/m² (partial break)
  • HDT @1.8 MPa: 125°C | Vicat Softening: 144°C
  • CTE (23–55°C): 0.65 x 10⁻⁵/K
  • CTI: 225 (Solution A) | Volume Resistivity: 1E14 Ω·m
  • Density: 1,200 kg/m³ | Water Absorption: 0.12% (50% RH)
  • Drying: 120°C for 2–3 hrs | Moisture Limit: ≤0.02%

Download

Makrolon 6555 RE CQ ISO Data SheetDownload

Application

  • Electronics: Connectors, circuit breakers, and transparent covers.
  • Automotive: Dashboard components, lighting housings.
  • Industrial: Safety visors, machine guards.
  • Consumer Tech: Power tool casings, charger enclosures.

Features & Benefits

Eco-Conscious Material Sourcing

This Covestro PC Makrolon 6555 RE CQ uses bio-circular attribution (ISCC PLUS), reducing fossil reliance while matching virgin-grade performance—ideal for brands targeting carbon footprint reduction.

Reliable Flame Safety

It achieves UL 94V-0 (3.0 mm) and V-2 (1.0 mm) ratings with high oxygen index (ISO 4589-2: 35), ensuring critical fire protection for electronics and electrical housings.

Precision Molding Efficiency

Medium viscosity and low shrinkage (0.6–0.8%) enable smooth injection molding, minimal warpage, and fast cycle times—cutting production costs for complex parts.

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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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