Sabic LEXAN™ PC Resin EX1632T
Plastic Granules
SABIC Lexan EX1632T Flame Retardant Grade
LEXAN™ EX1632T Resin is a 6 MFR, UV-stabilized polycarbonate containing a branched resin and internal release agent. It is UL94 HB rated and engineered specifically for high-quality multi-wall sheet and profile extrusion.
Typical property data
Physical Properties
- Density: 1.19 g/cm³ (ISO 1183)
- Melt Flow Rate (MFR): 6 g/10 min (ASTM D1238)
- Mold Shrinkage, flow, 3.2 mm: 0.5 – 0.7% (SABIC Method)
Mechanical Properties
- Tensile Stress at Yield (Type I, 50 mm/min): 61 MPa (ASTM D638)
- Tensile Stress at Break (Type I, 50 mm/min): 57 MPa (ASTM D638)
- Tensile Strain at Yield (Type I, 50 mm/min): 6.3% (ASTM D638)
- Tensile Strain at Break (Type I, 50 mm/min): 98.8% (ASTM D638)
- Tensile Modulus (5 mm/min): 2210 MPa (ASTM D638)
- Flexural Stress at Yield (1.3 mm/min, 50 mm span): 99 MPa (ASTM D790)
- Flexural Modulus (1.3 mm/min, 50 mm span): 2370 MPa (ASTM D790)
Impact Properties
- Izod Impact Notched at 23°C: 800 J/m (ASTM D256)
- Izod Impact Notched at -30°C: 152 J/m (ASTM D256)
- Instrumented Dart Impact Energy at 23°C: 74 J (ASTM D3763)
Thermal Properties
- Vicat Softening Temperature Rate B/50: 145°C (ASTM D1525)
- Vicat Softening Temperature Rate B/120: 147°C (ISO 306)
- Heat Deflection Temperature (HDT) at 0.45 MPa (3.2 mm, unannealed): 140°C (ASTM D648)
- Heat Deflection Temperature (HDT) at 1.82 MPa (3.2 mm, unannealed): 130°C (ASTM D648)
- Coefficient of Thermal Expansion (CTE) Flow (-40°C to 40°C): 6.5E-05 1/°C (ASTM E831)
- Coefficient of Thermal Expansion (CTE) Crossflow (-40°C to 40°C): 6.6E-05 1/°C (ASTM E831)
Flame Characteristics
- UL Flame Class Rating: UL 94HB, 0.8 mm (Tested by SABIC-IP)
Injection Molding
- Drying Temperature: 120°C
- Drying Time: 2 – 4 hours
- Barrel Zone Temperatures (1, 2, 3): 240 – 270°C
- Hopper Temperature: 100 – 120°C
- Adapter Temperature: 220 – 260°C
- Die Temperature: 220 – 280°C
- Melt Temperature: 220 – 280°C
- Calibrator Temperature: 50 – 100°C
Features & Benefits
Exceptional Toughness & Impact Resistance
With a high notched Izod impact strength, this resin produces sheets and profiles that resist cracking and breakage during installation, transport, and in demanding environments like agricultural greenhouses or protective covers.
Optimized for Stable Extrusion
The 6 MFR and branched resin structure ensure excellent melt strength for smooth, stable extrusion of complex multi-wall sheet profiles, reducing sagging and ensuring consistent wall thickness for better insulation and structural integrity.
Built-in Durability & Safety
UV stabilization protects against yellowing and embrittlement from sunlight, while the UL94 HB flammability rating ensures a baseline level of fire safety for a wide range of building and industrial applications without the need for additives.