Covestro Makrolon® 2258 PC Resin

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Makrolon PC Polycarbonate

Makrolon 2258 PC Resin Medical Grade

Makrolon 2258 is a medical-grade polycarbonate resin designed for precision medical components. With low viscosity (34 cm³/10 min MVR), easy mold release, and ISO 10993-1 biocompatibility, it excels in steam/ETO sterilization at 121°C. Available in transparent/opaque colors for versatile device design.

  • Character: MVR (300 °C/1.2 kg) 34 cm³/10 min; low viscosity; easy release; biocompatible according to many ISO 10993-1 test requirements; available in transparent and opaque colors
  • Application: Injection molding; Medical devices; Suitable for ETO and steam sterilization at 121 °C
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Key technical data (ISO)

  • Tensile Strength: 65 MPa
  • Impact Resistance (Notched, 23°C): 55 kJ/m²
  • Flexural Strength: 97 MPa
  • Heat Deflection Temp (1.8 MPa): 124°C
  • Vicat Softening Temp: 145°C
  • Continuous Use Temp: 125°C (UL 746B)
  • Sterilization: ETO & steam (121°C)
  • Biocompatibility: ISO 10993-1
  • Flame Rating: UL 94 V-2 (0.75mm)
  • Processing Melt Temp: 280–320°C
  • Processing Drying: 120°C for 2–3 hours
  • Processing Moisture Content: ≤0.02%

Download

Makrolon 2258 ISO Data SheetDownload

Application

  • Medical Devices: Surgical instruments, drug delivery systems, implantable components.
  • Sterilization-Compatible Parts: Reusable trays, housings, connectors
  • High-Clarity Components: Diagnostic equipment lenses, transparent covers, sample chambers.

Features & Benefits

Sterilization-Ready Medical Compliance

Makrolon® 2258 meets ISO 10993-1 biocompatibility standards and withstands repeated ETO/steam sterilization cycles (121°C), ensuring safety for surgical tools and implants without degradation.

Low Viscosity, High Efficiency

Its optimized flow (34 cm³/10 min MVR) enables easy injection molding of thin-walled parts (280–320°C melt temp), reducing cycle times and production costs for high-volume medical devices.

Optical Clarity & Durability

It delivers 89% light transmittance (1mm thickness) and impact resistance (>50 kJ/m²), ideal for transparent housings, lenses, and diagnostic equipment requiring scratch resistance and clarity.

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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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