Covestro Apec® 1803 PC Resin

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Covestro Apec® Thermoplastic resin

Apec 1803 PC Resin Heat Resistant Grade

Covestro Apec 1803 Polycarbonate resin delivers premium UV stability and heat resistance (VST 184°C) for demanding lighting applications. This high-viscosity copolycarbonate (MVR 10 cm³/10min) ensures reliability in injection-molded optical components exposed to extreme conditions.

  • Character: Copolycarbonate; MVR (330 °C/2.16 kg) 10 cm³/10 min; high viscosity; UV stabilized; softening temperature (VST/B 120) = 184 °C; Heat resistant
  • Application: Injection molding; Covers for brake lights and indicator lights; Car interior light covers; Domestic lamp covers; Headlamp lenses; Covers for ships’ lights; Connector pieces for halogen systems
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Key technical data (ISO)

  • Vicat Softening Temp: 184°C
  • Deflection Temp: 174°C (0.45 MPa), 158°C (1.8 MPa)
  • Continuous Use Temp: 150°C (UL 746B)
  • Tensile Strength: 72 MPa | Impact Strength: Non-break
  • Flexural Modulus: 2,400 MPa | Hardness: 121 N/mm²
  • CTI: 450 (High tracking resistance) | UL 94 HB Flammability
  • Drying: 130°C for 2–3 hrs | Max Moisture: ≤0.02%
  • Mold Temp: 120–140°C | Melt Temp: 330–340°C

Download

Covestro Apec 1803 ISO Data SheetDownload

Application

  • Automotive: Headlamp lenses, brake/indicator light covers, interior lamp housings.
  • Marine: UV-resistant covers for ships’ navigation lights.
  • Consumer: Domestic lamp covers requiring clarity and heat resistance.
  • Electrical: Connector pieces for halogen lighting systems.

Features & Benefits

Superior Heat Resilience

With a Vicat softening temperature of 184°C and deflection under load up to 174°C (0.45 MPa), Apec® 1803 withstands prolonged heat exposure. Ideal for automotive headlamps or halogen connectors, preventing deformation in high-temperature environments.

Exceptional UV Stability

UV-stabilized formulation retains optical clarity (89% transmittance) and mechanical integrity after long-term sun exposure. Perfect for outdoor lighting covers (ships, brake lights) that resist yellowing and brittleness.

Optimized Processing Efficiency

Low, consistent shrinkage (0.85%) and tailored melt temps (330–340°C) reduce warping and scrap rates. Simplifies injection molding of complex light covers while maintaining dimensional stability.

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Advanced Manufacturing

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High-speed mixer machine
Water ring pelletizer
Automatic bagging machine
Vibrating screening machine
Plastic rein material warehouse storage capacity
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