Sabic LEXAN™ PC Resin ML3729R
Plastic Granules
SABIC Lexan ML3729R UV-stabilized
LEXAN™ ML3729R resin is a 39 MFR polycarbonate, MVR of 36. UV stabilized. Mold release. UL94 V2 rated (US). Easy processing.
Associated Documents
TDS Americas
Typical property data
Physical Properties
- Specific Gravity: 1.2 (ASTM D792)
- Mold Shrinkage (flow): 0.5–0.7% (SABIC method)
- Mold Shrinkage (xflow): 0.5–0.7% (SABIC method)
- Melt Flow Rate (300°C/1.2 kgf): 39 g/10 min (ASTM D1238)
- Density: 1.2 g/cm³ (ISO 1183)
- Water Absorption (23°C, saturated): 0.27% (ISO 62-1)
- Moisture Absorption (23°C / 50% RH): 0.09% (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): 5.7% (ISO 527)
- Tensile Strain, Break (50 mm/min): 110% (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)
Impact Properties
- Izod Impact, Notched, +23°C: 12 kJ/m² (ISO 180/1A)
- Izod Impact, Notched, -30°C: 4 kJ/m² (ISO 180/1A)
- Charpy Impact, V-notch, +23°C: 12 kJ/m² (ISO 179/1eA)
- Charpy Impact, V-notch, -30°C: 5 kJ/m² (ISO 179/1eA)
Thermal Properties
- Vicat Softening Temperature (Rate B/120): 140°C (ISO 306)
- HDT, 0.45 MPa, Edgewise: 133°C (ISO 75/Be)
- HDT, 1.8 MPa, Edgewise: 121°C (ISO 75/Ae)
- Coefficient of Thermal Expansion (Flow, -40°C to 40°C): 7.2E-05 1/°C (ASTM E831)
- Coefficient of Thermal Expansion (Xflow, -40°C to 40°C): 7.8E-05 1/°C (ISO 11359-2)
Flame Characteristics
- UL94 Flammability Rating: V-2 Rated (US)
- UL Yellow Card Certification: E121562-102289604
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 3–4 Hours
- Maximum Moisture Content: 0.02%
- Melt Temperature Range: 270–295°C
- Mold Temperature Range: 70–95°C
- Back Pressure: 0.3–0.7 MPa
- Screw Speed: 40–70 rpm
- Vent Depth: 0.025–0.076 mm
Features & Benefits
Engineered for Easy Processing
This LEXAN ML3729R resin features mold release and a consistent melt flow, reducing cycle times and part sticking for higher production efficiency.
Built-In Durability and Stability
UV stabilization protects components from discoloration and degradation, extending product life for outdoor or brightly lit environments.
Balanced Mechanical Performance
It provides reliable strength, stiffness, and impact resistance, ensuring parts can withstand everyday stresses and physical demands.