LEXAN™ Copolymer CFR7431
- Chemical Family
- Polycarbonate (PC)
SABIC's Specialties Business LEXAN™ Copolymer CFR7431 is a non-filled, injection-moldable resin with a UL-94 V0 rating at 1.2 mm and a 5VA rating at 3.0 mm. It is also chlorinated, brominated, flame retardant, and UV stabilized (F1 rating) for additional weathering capability. Available in both clear transparent and tinted color options, this resin is an excellent choice for a wide range of applications.
Product families
- High Performance Thermoplastics
- Polycarbonates
Other characteristics
- Brand
- LEXAN™ Copolymer
- Polymer Name
- Polycarbonate (PC)
- Fillers Included
- Silicone Oil
- Flexural Modulus
- 2450.0 - 2450.0 MPa
- Additives Included
Flame Retardant, Heat Stabilizer, Mold Release Agent, UV Stabilizer; Flame Retardant; Heat Stabilizer; Mold Release Agent; UV Stabilizer
- Processing Methods
- Injection Molding
- Note
ʰ Measurements made from laboratory test coupon. Actual shrinkage may vary outside of range due to differences in processing conditions, equipment, part geometry and tool design. It is recommended that mold shrinkage studies be performed with surrogate or legacy tooling prior to cutting tools for new molded article.; ᵖ UL ratings shown on the technical datasheet might not cover the full range of thicknesses and colors. For details, please see the UL Yellow Card.; ⁷ Injection Molding parameters are only mentioned as general guidelines. These may not apply or may need adjustment in specific situations such as low shot sizes, large part molding, thin wall molding and gas-assist molding.; ¹¹ The information stated on Technical Datasheets should be used as indicative only for material selection purposes and not be utilized as specification or used for part or tool design.
- Color
- Translucent
- Transparent
- Markets
- Automotive & Transportation
- Building & Construction
- Consumer Goods
- Electrical & Electronics
- Healthcare & Pharma
- Industrial
- Flame Rating
- UL 94 5VA
- UL 94 V0
- UL 94 V1
- UL 94 V2
- Key Benefits
Complies with UL 94 V-0 standard down to 1.0 mm and UL 94 5VA standard at 3.0 mm; Products that comply with UL F1 are available; Excellent anti-draping properties; Provides a non-brominated, non-chlorinated, nonphosphate, non-Teflon† solution; Improved flow and processability compared to standard clear FR polycarbonate; Specific grades for injection molding or extrusion
- Technology
- Plastics
- Labeling Claims
- Bromine-free
- Chlorine-free
- Low Toxicity
Technical data
Table 1 of 8
14 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Tensile Stress (Yield, Type I, 50 mm/min) ¹¹ | 67 | MPa | ASTM D638 |
| Tensile Stress (Break, Type I, 50 mm/min) ¹¹ | 55 | MPa | ASTM D638 |
| Tensile Strain (Yield, Type I, 50 mm/min) ¹¹ | 6 | % | ASTM D638 |
| Tensile Strain (Break, Type I, 50 mm/min) ¹¹ | 55 | % | ASTM D638 |
| Tensile Modulus (at 50 mm/min) ¹¹ | 2520 | MPa | ASTM D638 |
| Flexural Stress (Yield, 1.3 mm/min, 50 mm span) ¹¹ | 107 | MPa | ASTM D790 |
| Flexural Modulus (at 1.3 mm/min, 50 mm span) ¹¹ | 2450 | MPa | ASTM D790 |
| Tensile Stress (Yield, 50 mm/min) ¹¹ | 66 | MPa | ISO 527 |
| Tensile Stress (Break, 50 mm/min) ¹¹ | 53 | MPa | ISO 527 |
| Tensile Strain (Yield, 50 mm/min) ¹¹ | 6 | % | ISO 527 |
| Tensile Strain (Break, 50 mm/min) ¹¹ | 56 | % | ISO 527 |
| Tensile Modulus (at 1 mm/min) ¹¹ | 2350 | MPa | ISO 527 |
Table 2 of 8
8 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Specific Gravity ¹¹ | 1.19 | — | ASTM D792 |
| Mold Shrinkage (flow, 3.2 mm) ʰ ¹¹ | 0.55 - 0.75 | % | SABIC method |
| Mold Shrinkage (xflow, 3.2 mm) ʰ ¹¹ | 0.6 - 0.8 | % | SABIC method |
| Melt Flow Rate (at 300°C, 1.2 kgf) ¹¹ | 10 | g/10 min | ASTM D1238 |
| Density ¹¹ | 1.2 | g/cm³ | ISO 1183 |
| Water Absorption (at 23°C, saturated) ¹¹ | 0.13 | % | ISO 62-1 |
| Moisture Absorption (at 23°C, 50% RH) ¹¹ | 0.1 | % | ISO 62 |
| Melt Volume Rate (at 300°C, 1.2 kg) ¹¹ | 9 | cm³/10 min | ISO 1133 |
Table 3 of 8
15 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Vicat Softening Temperature (Rate B/50) ¹¹ | 136 | °C | ASTM D1525 |
| Vicat Softening Temperature (Rate B/50) ¹¹ | 137 | °C | ISO 306 |
| Heat Deflection Temperature (at 0.45 MPa, 3.2 mm, Unannealed) ¹¹ | 131 | °C | ASTM D648 |
| Heat Deflection Temperature (at 1.82 MPa, 3.2mm, Unannealed) ¹¹ | 120 | °C | ASTM D648 |
| Coefficient of Thermal Expansion (at -40°C to 40°C, flow) ¹¹ | 0.000067 | 1/°C | ASTM E831 |
| Coefficient of Thermal Expansion (at -40°C to 40°C, xflow) ¹¹ | 0.000067 | 1/°C | ASTM E831 |
| Coefficient of Thermal Expansion (at 23°C to 80°C, flow) ¹¹ | 0.000077 | 1/°C | ISO 11359-2 |
| Coefficient of Thermal Expansion (at 23°C to 80°C, xflow) ¹¹ | 0.000079 | 1/°C | ISO 11359-2 |
| Ball Pressure Test (at 123°C to 127°C) ¹¹ | Pass | — | IEC 60695-10-2 |
| Vicat Softening Temperature (Rate B/120) ¹¹ | 139 | °C | ISO 306 |
| Heat Deflection Temperature/Be (at 0.45MPa, Edgew 120*10*4, sp=100mm) ¹¹ | 131 | °C | ISO 75/Be |
| Heat Deflection Temperature/Ae (at 1.8 Mpa, Edgew 120*10*4, sp=100mm) ¹¹ | 120 | °C | ISO 75/Ae |
Table 4 of 8
6 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Comparative Tracking Index (UL, PLC) ¹¹ | 3 | PLC Code | UL 746A |
| High Ampere Arc Ignition (PLC 0) ¹¹ | min. 1.2 | mm | UL 746A |
| Hot Wire Ignition (PLC 0) ¹¹ | min. 3 | mm | UL 746A |
| Hot Wire Ignition (PLC 3) ¹¹ | min. 1.2 | mm | UL 746A |
| Dielectric Constant (at 1.1 GHz) ¹¹ | 2.79 | — | ASTM ES 7-83 |
| Dissipation Factor (at 1.1 GHz) ¹¹ | 0.0057 | — | ASTM ES 7-83 |
Table 5 of 8
3 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Light Transmission (at 1.0 mm) ¹¹ | min. 90 | % | SABIC method |
| Light Transmission (at 2.0 mm) ¹¹ | min. 89 | % | SABIC method |
| Light Transmission (at 3.0 mm) ¹¹ | min. 88 | % | SABIC method |
Table 6 of 8
13 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Izod Impact (Unnotched, at 23°C) ¹¹ | No break | J/m | ASTM D4812 |
| Izod Impact (Unnotched, at -30°C) ¹¹ | No break | J/m | ASTM D4812 |
| Izod Impact (Notched, at 23°C) ¹¹ | 100 | J/m | ASTM D256 |
| Izod Impact (Notched, at -30°C) ¹¹ | 81 | J/m | ASTM D256 |
| Instrumented Dart Impact Total Energy (at 23°C) ¹¹ | 64 | J | ASTM D3763 |
| Izod Impact (Unnotched, 80*10*3, at 23°C) ¹¹ | No break | kJ/m² | ISO 180/1U |
| Izod Impact (Unnotched, 80*10*3, at -30°C) ¹¹ | No break | kJ/m² | ISO 180/1U |
| Izod Impact (Notched, 80*10*3, at 23°C) ¹¹ | 9 | kJ/m² | ISO 180/1A |
| Izod Impact (Notched, 80*10*3, at -30°C) ¹¹ | 8 | kJ/m² | ISO 180/1A |
| Charpy Impact (at 23°C, V-notch Edgew 80*10*3 sp=62mm) ¹¹ | 10 | kJ/m² | ISO 179/1eA |
| Charpy Impact (at -30°C, V-notch Edgew 80*10*3 sp=62mm) ¹¹ | 7 | kJ/m² | ISO 179/1eA |
| Charpy Impact (at 23°C, Unnotch Edgew 80*10*3 sp=62mm) ¹¹ | No break | kJ/m² | ISO 179/1eU |
Table 7 of 8
14 rows| Characteristic | Value | Unit |
|---|---|---|
| Drying Temperature ⁷ | 120 | °C |
| Drying Time ⁷ | 3 - 4 | Hrs |
| Drying Time (Cumulative) ⁷ | 48 | Hrs |
| Maximum Moisture Content ⁷ | 0.02 | % |
| Melt Temperature ⁷ | 280 - 305 | °C |
| Nozzle Temperature ⁷ | 275 - 300 | °C |
| Front - Zone 3 Temperature ⁷ | 280 - 305 | °C |
| Middle - Zone 2 Temperature ⁷ | 270 - 295 | °C |
| Rear - Zone 1 Temperature ⁷ | 260 - 280 | °C |
| Mold Temperature ⁷ | 70 - 95 | °C |
| Back Pressure ⁷ | 0.3 - 0.7 | MPa |
| Screw Speed ⁷ | 40 - 70 | rpm |
Table 8 of 8
9 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| UL Recognized (94V-2 Flame Class Rating) ᵖ | min. 0.4 | mm | UL 94 |
| UL Recognized (94V-1 Flame Class Rating) ᵖ | min. 1 | mm | UL 94 |
| UL Recognized (94V-0 Flame Class Rating) ᵖ | min. 1.2 | mm | UL 94 |
| UL Recognized (94-5VA Flame Class Rating) ᵖ | min. 3 | mm | UL 94 |
| Glow Wire Ignitability Temperature (at 3.0 mm) ᵖ | 850 | °C | IEC 60695-2-13 |
| Glow Wire Ignitability Temperature (at 1.2 mm) ᵖ | 850 | °C | IEC 60695-2-13 |
| Glow Wire Flammability Index (at 3 mm) ᵖ | 960 | °C | IEC 60695-2-12 |
| Glow Wire Flammability Index (at 1.2 mm) ᵖ | 960 | °C | IEC 60695-2-12 |
| UV-light (Water exposure/immersion) ᵖ | F1 | — | UL 746C |
