Sabic LEXAN™ PC Resin 263R
Plastic Granules
SABIC Lexan 263R Flame Retardant Grade
LEXAN™ Resin 263R is a versatile, medium-viscosity polycarbonate featuring built-in UV stabilization and a release agent for excellent processability. It delivers a reliable balance of clarity, impact strength, and flame resistance (UL94-V2 at 0.8mm).
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)
- Melt Volume Rate (MVR) at 300°C/1.2 kg: 9 cm³/10 min (ISO 1133)
Mechanical Properties
- Tensile Stress (yield): 63 MPa (ISO 527)
- Tensile Stress (break): 70 MPa (ISO 527)
- Tensile Strain (yield): 6% (ISO 527)
- Tensile Strain (break): 120% (ISO 527)
- Tensile Modulus: 2350 MPa (ISO 527)
- Flexural Stress (yield): 90 MPa (ISO 178)
- Flexural Modulus: 2300 MPa (ISO 178)
- Ball Indentation Hardness: 95 MPa (ISO 2039-1)
Impact Properties
- Izod Impact Strength (notched, 23°C): 70 kJ/m² (ISO 180/1A)
- Izod Impact Strength (notched, -30°C): 12 kJ/m² (ISO 180/1A)
- Izod Impact Strength (unnotched, 23°C): No Break (ISO 180/1U)
- Izod Impact Strength (unnotched, -30°C): No Break (ISO 180/1U)
- Charpy Impact Strength, V-notch (23°C): 73 kJ/m² (ISO 179/1eA)
- Charpy Impact Strength, V-notch (-30°C): 14 kJ/m² (ISO 179/1eA)
Thermal Properties
- Thermal Conductivity: 0.2 W/m-°C (ISO 8302)
- Coefficient of Thermal Expansion (CTE, 23°C to 80°C, flow): 7.0×10−57.0 \times 10^{-5} 1/°C (ISO 11359-2)
- Vicat Softening Temperature (Rate B/50): 143°C (ISO 306)
- Vicat Softening Temperature (Rate B/120): 145°C (ISO 306)
- Heat Deflection Temperature (HDT) under 0.45 MPa: 138°C (ISO 75/Be)
- Heat Deflection Temperature (HDT) under 1.8 MPa: 127°C (ISO 75/Ae)
- Ball Pressure Test (125°C): Passes (IEC 60695-10-2)
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: >1.E+15 Ω (IEC 60093)
- Dielectric Strength (3.2 mm, in oil): 17 kV/mm (IEC 60243-1)
- Relative Permittivity (1 MHz): 2.7 (IEC 60250)
- Dissipation Factor (1 MHz): 0.01 (IEC 60250)
Flame Characteristics
- UL 94 Flame Class Rating (0.75 mm): V-2 (UL 94)
- UL 94 Flame Class Rating (6 mm): V-0 (UL 94)
- Glow Wire Flammability Index (850°C, 1 mm): Passes (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 – 310°C
- Nozzle Temperature: 270 – 290°C
- Mold Temperature: 80 – 110°C
- Hopper Temperature: 60 – 80°C
Features & Benefits
Exceptional Toughness & Durability
This LEXAN 263R resin maintains high impact resistance even at freezing temperatures (-30°C), preventing cracks and breaks in harsh environments, which reduces part failure and warranty claims.
High Clarity & Thermal Stability
It offers over 88% light transmission with low haze, ideal for clear covers or lenses. With a Heat Deflection Temperature (HDT) of 127°C at 1.8MPa, it withstands high-temperature assembly processes without deforming.qu
Easy Processing & Mold Release
The built-in release agent in LEXAN 263R ensures smooth demolding, reduces cycle times, and minimizes mold fouling. This leads to higher production efficiency and lower maintenance costs for injection molders.