Sabic LEXAN™ PC Resin 124R
Plastic Granules
SABIC PC Lexan 124R General Purpose Grade
LEXAN 124R resin is an 18 MFR polycarbonate with mold release. It is UL94 HB rated and offers food contact compliance in most regions, making it a versatile and reliable engineering plastic.
Typical property data
Physical Properties
- Density: 1.19 g/cm³ (ASTM D792)
- Specific Gravity: 1.2 (ASTM D792)
- Melt Flow Rate (300°C/1.2 kgf): 17.5 g/10 min (ASTM D1238)
- Water Absorption:
- 23°C/24hrs: 0.15% (ASTM D570)
- 23°C/Saturated: 0.35% (ASTM D570)
- Equilibrium at 100°C: 0.58% (ASTM D570)
- Mold Shrinkage (flow, 3.2 mm): 0.5–0.7% (SABIC Method)
Mechanical Properties
- Tensile Strength:
- Yield: 62 MPa (ASTM D638)
- Break: 68 MPa (ASTM D638)
- Tensile Strain:
- Yield: 7% (ASTM D638)
- Break: 125% (ASTM D638)
- Flexural Strength (yld, 1.3 mm/min): 96 MPa (ASTM D790)
- Flexural Modulus: 2340 MPa (ASTM D790)
- Rockwell Hardness:
- Rockwell M: 70 (ASTM D785)
- Rockwell R: 118 (ASTM D785)
Impact Properties
- Izod Impact Strength:
- Unnotched, 23°C: 3204 J/m (ASTM D4812)
- Notched, 23°C: 694 J/m (ASTM D256)
- Tensile Impact Strength: 546 kJ/m² (ASTM D1822)
- Falling Dart Impact (23°C): 169 J (ASTM D3029)
Thermal Properties
- Vicat Softening Point (Rate B/50): 154°C (ASTM D1525)
- Heat Deflection Temperature (HDT):
- @ 0.45 MPa: 137°C (ASTM D648)
- @ 1.82 MPa: 129°C (ASTM D648)
- Coefficient of Thermal Expansion (-40°C to 95°C): 6.84×10−5 1/°C6.84 \times 10^{-5}\, 1/°C (ASTM E831)
- Specific Heat: 1.25 J/g-°C (ASTM C351)
- Thermal Conductivity: 0.19 W/m-°C (ASTM C177)
- Relative Temperature Index:
- Electrical: 130°C (UL 746B)
- Mechanical (with/without impact): 130°C (UL 746B)
Optical Properties
- Light Transmission (2.54 mm thick): 88% (ASTM D1003)
- Haze (2.54 mm thick): 1% (ASTM D1003)
- Refractive Index: 1.586 (ASTM D542)
Electrical Properties
- Volume Resistivity: Greater than 1×1017 Ω⋅cm1 \times 10^{17}\, \Omega \cdot \text{cm} (ASTM D257)
- Dielectric Strength (3.2 mm in air): 14.9 kV/mm (ASTM D149)
- Relative Permittivity:
- 50/60 Hz: 3.17 (ASTM D150)
- 1 MHz: 2.96 (ASTM D150)
- Dissipation Factor:
- 50/60 Hz: 0.0009 (ASTM D150)
- 1 MHz: 0.01 (ASTM D150)
Flame Characteristics
- UL 94 Flammability Rating (HB): Thickness 1.47 mm (UL 94)
- Hot Wire Ignition (PLC): 2 (UL 746A)
- High Ampere Arc Ignition: 1 (UL 746A)
- Comparative Tracking Index (CTI): 2 (UL 746A)
Injection Molding Parameters
- Drying Temperature: 120°C
- Drying Time: 3–4 hours (cumulative max: 48 hrs)
- Maximum Moisture Content: 0.02%
- Melt Temperature: 280–305°C
- Nozzle Temperature: 275–300°C
- Mold Temperature: 70–95°C
- Back Pressure: 0.3–0.7 MPa
- Screw Speed: 40–70 rpm
Features & Benefits
Built-In Mold Release Agent
This feature significantly reduces cycle times and improves part ejection, leading to higher productivity and lower per-part costs for high-volume injection molding.
Excellent Impact Strength & Toughness
Its high notched Izod impact resistance ensures your products can withstand rough handling and accidental drops, enhancing durability and reducing failure rates.
High Clarity & Food Contact Potential
With 88% light transmission and compliance with food contact regulations in most areas, it is an ideal, safe choice for transparent food containers, lids, and kitchenware.
Use & Applications
- Food Storage Containers and Lids
- Small Kitchen Appliances (Housings & Components)
- Consumer Electronics Housings
- Thin-Wall Packaging
- Light Diffusers and Covers
- Office Equipment Housings
- Medical Device Housings (non-critical)
- Automotive Interior Trim Components