SABIC LEXAN ML3729R PC Resin

Physical Properties

• Specific Gravity: Tested per ASTM D792, the material’s specific gravity is 1.20 g/cc, reflecting its density relative to water.
• Density: In line with ISO 1183, the density measures 1.20 g/cc (0.0434 lb/in³), indicating consistent mass-to-volume properties.
• Water Absorption: At 23°C/saturated (ISO 62), the material absorbs 0.27%, showing moderate moisture uptake under fully saturated conditions.
• Moisture Absorption: Under 23°C/50% RH (ISO 62), the material exhibits a 0.0900% moisture absorption rate, suitable for low-humidity environments.
• Linear Mold Shrinkage:SABIC method shows 0.0050–0.0070 cm/cm (in/in) shrinkage for 3.20 mm injection-molded samples in flow and transverse directions.
• Melt Flow: ISO 1133 records 6.0 g/10 min at 250°C/1.20 kg, 36 g/10 min at 300°C; ASTM D1238 shows 39 g/10 min at 300°C under the same load.

Polymer Properties:

• Base Material: Polycarbonate (PC)
• Modification Features:
  
  • Excellent flow property for easy processing, reducing production time.
  • UV – stabilized to prevent degradation from sunlight exposure.
  • Contains a release agent for smooth mold ejection during processing.

Applications:

Given these properties, LEXAN™ ML3729R is primarily used in the following applications:

• Mobile Device Components: Its combination of high flow and durability makes it ideal for thin-walled phone cases, internal frames, and intricate electronic housings.
• Wearable Electronics: The resin is well-suited for the complex, small-scale parts required in smartwatches, fitness trackers, and other wearable devices.
• Medical Devices: It can be used for small, intricate medical components like connectors, housings for diagnostic devices, and parts in drug delivery systems where complex geometries are needed.
• Consumer Electronics: Its high flowability allows for the production of detailed parts for laptops, tablets, cameras, and other consumer gadgets.