Chi Mei Wonderlite PC – 175 Hot Sale PC Resin

Chi Mei Wonderlite PC-175 is a high-flow, optical-grade polycarbonate (PC) resin manufactured by Chi Mei Corporation.

1. Optical Disks (e.g., CD, DVD, Blu-ray)
   • PC-175’s high flowability, exceptional transparency, and purity make it the preferred choice for optical disks, where precise molding and optical clarity are critical.
2. Electronic Device Components (e.g., Display Windows, Light Guides)
   • PC-175’s high clarity and flowability are ideal for transparent electronic components like display windows and light guides in smartphones, tablets, or LEDs.
3. Transparent Consumer Goods (e.g., Cosmetic Packaging, Food Containers)
   • PC-175’s FDA compliance, clarity, and impact resistance make it suitable for transparent consumer goods requiring aesthetic appeal and durability.

Processing Recommendations

• Injection Molding:
  • Melt Temperature: 290–320°C to leverage the high MFI (~17 g/10 min) for thin-walled parts.
  • Mold Temperature: 80–100°C to minimize internal stresses and achieve optimal clarity.
  • Injection Pressure: 80–120 MPa to fill intricate molds without voids.
  • Drying: Dry resin at 120°C for 4 hours to remove moisture and prevent bubbles or haze.
• Post-Processing: Anneal parts at 120°C for 1–2 hours to relieve residual stresses, especially for optical components.
• Mold Design: Use high-polish molds (SPI-A1) and multi-gate systems for complex geometries to avoid weld lines and ensure uniform flow.

Limitations and Considerations

• UV Stability: PC-175 is not UV-stabilized, so it is unsuitable for prolonged outdoor exposure without coatings. For UV-resistant applications, consider PC-122U.
• Flame Resistance: The UL 94 V-2 rating limits its use in applications requiring higher flame retardancy (e.g., V-0). Consider PC-6710 for flame-retardant needs.
• Chemical Resistance: PC-175 has limited resistance to harsh chemicals (e.g., solvents, fuels), restricting its use in chemical tanks or fuel-related applications.
• Cost: As an optical-grade PC, PC-175 is more expensive than general-purpose grades like PC-110. Ensure cost-benefit analysis justifies its use for high-clarity applications.