Covestro Makrolon® 3158 PC Resin

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Makrolon PC Polycarbonate

Makrolon 3158 PC Resin

Makrolon 3158 is a high-viscosity, biocompatible polycarbonate resin engineered for demanding medical applications. With an MVR of 6.0 cm³/10 min (300°C/1.2 kg), it offers easy mold release, exceptional clarity (88% transmittance at 3mm), and compliance with ISO 10993-1 biocompatibility standards. Ideal for sterilization-critical devices.

  • Character: MVR (300 °C/1.2 kg) 6.0 cm³/10 min; high 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: 70 MPa | Flexural Modulus: 2,400 MPa
  • Notched Impact (23°C): 80 kJ/m² (non-break) | Puncture Force: 6,500 N
  • Heat Deflection (1.8 MPa): 126°C | Glass Transition: 146°C
  • Linear Expansion: 0.65 x 10⁻⁴/K (minimizes warpage)
  • Luminous Transmittance: 89% (1mm)
  • Haze: <0.8% (crystal-clear lenses)
  • Processing Melt Temp: 290–330°C
  • Processing Mold Temp: 80–100°C
  • Processing Drying: 120°C/2–3 hrs

Download

Makrolon 3158 ISO Data SheetDownload

Application

  • Sterilizable medical devices: Surgical instrument housings, dialysis components.
  • Injection-molded labware: Petri dishes, transparent fluid reservoirs.
  • ETO/steam-sterilized (121°C) equipment: IV drip chambers, respirator valves.

Features & Benefits

Biocompatible & Sterilization-Ready

Makrolon® 3158 passes ISO 10993-1 tests and withstands ETO/steam sterilization (121°C), ensuring safety for implants, surgical tools, and diagnostic equipment without degradation.

Unmatched Impact Resistance

With puncture energy up to 70 J and tensile strength of 70 MPa, it prevents cracking in high-stress medical housings, IV connectors, and trauma devices—even at subzero temperatures.

Precision Moldability

Low shrinkage (0.6–0.8%) and optimized flow simplify injection molding of thin-walled components like transparent syringe barrels or opaque surgical handles, reducing rejects by 20%.

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Advanced Manufacturing

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Water ring pelletizer
Automatic bagging machine
Vibrating screening machine
Plastic rein material warehouse storage capacity
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