Sabic LEXAN™ PC Resin ML3729
Plastic Granules
SABIC Lexan ML3729 UV-stabilized
LEXAN™ ML3729 resin is an excellent flow polycarbonate with MVR of 36. UV stabilized. UL94 V2 rated. Easy processing. Available in transparent, translucent and opaque colors.
Associated Documents
TDS Europe
Typical property data
Physical Properties
- Density: 1.2 g/cm³ (ISO 1183)
- Mold Shrinkage (flow): 0.5 – 0.7% (SABIC method)
- Water Absorption (23°C, saturated): 0.35% (ISO 62-1)
- Moisture Absorption (23°C, 50% RH): 0.15% (ISO 62)
Mechanical Properties
- Tensile Stress (yield, 50 mm/min): 60 MPa (ISO 527)
- Tensile Stress (break, 50 mm/min): 55 MPa (ISO 527)
- Tensile Strain (yield, 50 mm/min): 6% (ISO 527)
- Tensile Strain (break, 50 mm/min): 70% (ISO 527)
- Tensile Modulus (1 mm/min): 2300 MPa (ISO 527)
- Flexural Stress (yield, 2 mm/min): 85 MPa (ISO 178)
- Flexural Modulus (2 mm/min): 2300 MPa (ISO 178)
- Ball Indentation Hardness (H358/30): 95 MPa (ISO 2039-1)
Impact Properties
- Izod Impact (unnotched, +23°C): NB (ISO 180/1U)
- Izod Impact (unnotched, -30°C): NB (ISO 180/1U)
- Izod Impact (notched, +23°C): 55 kJ/m² (ISO 180/1A)
- Izod Impact (notched, -30°C): 11 kJ/m² (ISO 180/1A)
Thermal Properties
- Vicat Softening Temp (Rate A/50): 145°C (ISO 306)
- Vicat Softening Temp (Rate B/50): 139°C (ISO 306)
- HDT (0.45 MPa, edgewise): 133°C (ISO 75/Be)
- HDT (1.8 MPa, edgewise): 121°C (ISO 75/Ae)
- Thermal Conductivity: 0.2 W/m·°C (ISO 8302)
Optical Properties
- Light Transmission (2.54 mm): 88 – 90% (ASTM D1003)
- Haze (2.54 mm): <0.8% (ASTM D1003)
- Refractive Index: 1.586 (ISO 489)
Electrical Properties
- Volume Resistivity: >1.E+15 Ω·cm (IEC 60093)
- Surface Resistivity (ROA): >1.E+15 Ω (IEC 60093)
- Dielectric Strength (in oil, 0.8 mm): 35 kV/mm (IEC 60243-1)
- Dielectric Strength (in oil, 1.6 mm): 27 kV/mm (IEC 60243-1)
Flame Characteristics
- UL Flammability Rating: UL 94 V-2 (0.75 mm)
- Glow Wire Flammability Index (850°C): Passes at 1 mm (IEC 60695-2-12)
- Oxygen Index (LOI): 25% (ISO 4589)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 2 – 4 hours
- Maximum Moisture Content: 0.02%
- Melt Temperature: 280 – 300°C
- Mold Temperature: 80 – 100°C
Features & Benefits
Superior Flow for Complex Molds
The high MVR (36) ensures easy filling of intricate and thin-walled designs, reducing injection pressure and cycle times for higher productivity.
Built-In Durability and Clarity
UV stabilization protects against yellowing and degradation from sunlight, maintaining optical clarity and mechanical integrity for long-lasting outdoor or illuminated components.
Inherent Flame Resistance and Safety
The UL94 V2 rating provides a recognized level of flame retardancy without halogens, contributing to safer products and helping meet regulatory requirements for electronics and enclosures.