Covestro Makrolon® 2805 PC Resin

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Makrolon PC Polycarbonate

Makrolon 2805 Polycarbonate Granules Injection molding Grade

Covestro Makrolon 2805 is a versatile, medium-viscosity polycarbonate resin engineered for injection molding. With an MVR of 9.0 cm³/10 min (300°C/1.2 kg), it offers easy release and excellent processability. Available in transparent, translucent, and opaque colors, it balances performance and efficiency for demanding industrial applications.

  • Character: MVR (300 °C/1.2 kg) 9.0 cm³/10 min; medium viscosity; easy release; available in transparent, translucent and opaque colors
  • Application: Injection molding; General purpose
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Key technical data

Mechanical Properties
  • Tensile Modulus: 2,400 MPa
  • Flexural Strength: 97 MPa
  • Notched Impact Strength (23°C): 75 kJ/m² (Charpy)
  • Ball Indentation Hardness: 115 N/mm²
Thermal Performance
  • HDT (1.8 MPa): 125°C
  • Vicat Softening (50N): 144°C
  • Linear Thermal Expansion: 0.65 x 10⁻⁵/K
  • Glow Wire Resistance (1.5mm): 850°C
Electrical & Safety
  • Volume Resistivity: 1E14 Ω·m
  • Electrical Strength: 34 kV/mm
  • Density: 1,200 kg/m³
  • Water Absorption: 0.12% (50% RH)
Processing (Optimal)
  • Melt Temp: 280–320°C (Optimal: 300°C)
  • Mold Temp: 80–120°C
  • Drying: 120°C for 2–3 hours (max 0.02% moisture)

Application

  • Electrical: Switches, enclosures, connectors (UL/CTI certified).
  • Automotive: Dash components, lighting covers, impact-resistant trims.
  • Industrial: Transparent machine guards, tool housings, safety visors.
  • Consumer Goods: Durable appliance housings, transparent containers.
  • General Engineering: Gears, bushings, and structural components.

Download

Makrolon 2805 ISO Data SheetDownload

Features & Benefits

Exceptional Impact Resistance

Makrolon PC 2805 Polycarbonate Granules deliver unmatched toughness, with >50% nominal strain at break and puncture energy up to 65 J. This reduces part failure in high-stress environments, ensuring longevity for automotive or protective gear.

Reliable High-Temperature Stability

With a heat deflection temperature of 125°C (1.8 MPa) and Vicat softening at 144°C, it maintains structural integrity under thermal stress. Ideal for electrical components near heat sources or outdoor equipment exposed to extreme climates.

Superior Electrical Safety

It boasts volume resistivity of 1E14 Ω·m, CTI 250 rating, and UL94 V-2/HB flammability compliance. Prevents short circuits and meets strict standards for electronics, connectors, and industrial enclosures.

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