Covestro Makrolon 2805 Hot Sale PC Resin

Physical Properties

• Bulk Density: Measured for pellets per ISO 60, bulk density is 0.600 g/cc (0.0217 lb/in³), indicating packing density in granular form.
• Density: Determined by ISO 1183-1, density is 1.20 g/cc (0.0434 lb/in³), a key parameter for mass-to-volume ratio.
• Moisture Absorption at Equilibrium: At 50% RH per ISO 62, moisture absorption is 0.12%, ensuring stability in humid environments.
• Water Absorption at Saturation: As per ISO 62, water absorption at saturation is 0.35%, critical for water-resistant applications.
• Water Vapor Transmission: Per ISO 15106-1, rate is 15.0 g/m²/day (0.966 g/100 in²/day) for moisture barrier assessment.
• Oxygen Transmission: 100 µm film: 650 cc-mm/m²-24hr-atm (1650 cc-mil) per ISO 2556; 25.4 µm film: 2760 cc-mm/m²-24hr-atm (7010 cc-mil).
• Nitrogen Transmission: 100 µm film: 120 cc-mm/m²-24hr-atm (305 cc-mil) per ISO 2556; 25.4 µm film: 510 cc-mm/m²-24hr-atm (1300 cc-mil).
• Carbon Dioxide Transmission: 100 µm film: 3800 cc-mm/m²-24hr-atm (9650 cc-mil) per ISO 2556; 25.4 µm film: 16900 cc-mm/m²-24hr-atm (42900 cc-mil).
• Linear Mold Shrinkage: Ranges 0.0060–0.0080 cm/cm (in/in) per ISO 2577, indicating dimensional change in molding.
• Linear Mold Shrinkage, Flow: For 60x60x2 mm samples at 500 bar (ISO 294-4), flow shrinkage is 0.0065 cm/cm (0.0065 in/in).
• Linear Mold Shrinkage, Transverse: At 500 bar (ISO 294-4), transverse shrinkage is 0.0070 cm/cm (0.0070 in/in) for molded parts.
• Melt Flow: Per ISO 1133, melt flow rate is 10 g/10 min at 300°C (572°F) under 1.20 kg (2.65 lb) load, reflecting processability.

Polymer Properties:

1. Base Material: Polycarbonate (PC)
2. Modification Features:
   
   • High – performance impact resistance, ideal for demanding applications.
   • Excellent heat resistance for high – temperature environments.
   • Good chemical resistance for exposure to various substances.
   • Superior optical quality for optical applications.

Applications: