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LEXAN™ Copolymer CFR7431

1 of 148 products in this brand
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.

Polymer Name: Polycarbonate (PC)

Additives Included: Flame Retardant, Heat Stabilizer, Mold Release Agent, UV Stabilizer

Fillers Included: Silicone Oil

Processing Methods: Injection Molding

Flexural Modulus: 2450.0 - 2450.0 MPa

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Fillers Included
Polymer Name
Plastics & Elastomers Functions
Technologies

Features & Benefits

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
Improved flow and processability

LEXAN CFR resins offer improved flow and processability compared to standard clear, FR polycarbonate. Due to the effects of shear thinning, a LEXAN CFR resin grade with a melt flow index (MFI) of 18 can have a spiral flow (indicative of practical flow in injection molding) similar to that of an FR polycarbonate with an MFI of 28. Similarly, a LEXAN CFR resin grade with an MFI of 5 has a spiral flow equivalent to that of an FR polycarbonate with an MFI of 14.

Applications & Uses

Plastics & Elastomers Processing Methods

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Stress (Yield, Type I, 50 mm/min) ¹¹67MPaASTM D638
Tensile Stress (Break, Type I, 50 mm/min) ¹¹55MPaASTM D638
Tensile Strain (Yield, Type I, 50 mm/min) ¹¹6%ASTM D638
Tensile Strain (Break, Type I, 50 mm/min) ¹¹55%ASTM D638
Tensile Modulus (at 50 mm/min) ¹¹2520MPaASTM D638
Flexural Stress (Yield, 1.3 mm/min, 50 mm span) ¹¹107MPaASTM D790
Flexural Modulus (at 1.3 mm/min, 50 mm span) ¹¹2450MPaASTM D790
Tensile Stress (Yield, 50 mm/min) ¹¹66MPaISO 527
Tensile Stress (Break, 50 mm/min) ¹¹53MPaISO 527
Tensile Strain (Yield, 50 mm/min) ¹¹6%ISO 527
Tensile Strain (Break, 50 mm/min) ¹¹56%ISO 527
Tensile Modulus (at 1 mm/min) ¹¹2350MPaISO 527
Flexural Stress (Yield, at 2 mm/min) ¹¹101MPaISO 178
Flexural Modulus (at 2 mm/min) ¹¹2450MPaISO 178
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity ¹¹1.19ASTM D792
Mold Shrinkage (flow, 3.2 mm) ʰ ¹¹0.55 - 0.75%SABIC method
Mold Shrinkage (xflow, 3.2 mm) ʰ ¹¹0.6 - 0.8%SABIC method
Melt Flow Rate (at 300°C, 1.2 kgf) ¹¹10g/10 minASTM D1238
Density ¹¹1.2g/cm³ISO 1183
Water Absorption (at 23°C, saturated) ¹¹0.13%ISO 62-1
Moisture Absorption (at 23°C, 50% RH) ¹¹0.1%ISO 62
Melt Volume Rate (at 300°C, 1.2 kg) ¹¹9cm³/10 minISO 1133
Thermal Properties
ValueUnitsTest Method / Conditions
Vicat Softening Temperature (Rate B/50) ¹¹136°CASTM D1525
Vicat Softening Temperature (Rate B/50) ¹¹137°CISO 306
Heat Deflection Temperature (at 0.45 MPa, 3.2 mm, Unannealed) ¹¹131°CASTM D648
Heat Deflection Temperature (at 1.82 MPa, 3.2mm, Unannealed) ¹¹120°CASTM D648
Coefficient of Thermal Expansion (at -40°C to 40°C, flow) ¹¹0.0000671/°CASTM E831
Coefficient of Thermal Expansion (at -40°C to 40°C, xflow) ¹¹0.0000671/°CASTM E831
Coefficient of Thermal Expansion (at 23°C to 80°C, flow) ¹¹0.0000771/°CISO 11359-2
Coefficient of Thermal Expansion (at 23°C to 80°C, xflow) ¹¹0.0000791/°CISO 11359-2
Ball Pressure Test (at 123°C to 127°C) ¹¹PassIEC 60695-10-2
Vicat Softening Temperature (Rate B/120) ¹¹139°CISO 306
Heat Deflection Temperature/Be (at 0.45MPa, Edgew 120*10*4, sp=100mm) ¹¹131°CISO 75/Be
Heat Deflection Temperature/Ae (at 1.8 Mpa, Edgew 120*10*4, sp=100mm) ¹¹120°CISO 75/Ae
Relative Temperature Index (Electrical) ᵖ ¹¹125°CUL 746B
Relative Temperature Index (Mechanical with impact) ᵖ ¹¹120°CUL 746B
Relative Temperature Index (Mechanical without impact) ᵖ ¹¹125°CUL 746B
Electrical Properties
ValueUnitsTest Method / Conditions
Comparative Tracking Index (UL, PLC) ¹¹3PLC CodeUL 746A
High Ampere Arc Ignition (PLC 0) ¹¹min. 1.2mmUL 746A
Hot Wire Ignition (PLC 0) ¹¹min. 3mmUL 746A
Hot Wire Ignition (PLC 3) ¹¹min. 1.2mmUL 746A
Dielectric Constant (at 1.1 GHz) ¹¹2.79ASTM ES 7-83
Dissipation Factor (at 1.1 GHz) ¹¹0.0057ASTM ES 7-83
Optical Properties
ValueUnitsTest Method / Conditions
Light Transmission (at 1.0 mm) ¹¹min. 90%SABIC method
Light Transmission (at 2.0 mm) ¹¹min. 89%SABIC method
Light Transmission (at 3.0 mm) ¹¹min. 88%SABIC method
Impact Properties
ValueUnitsTest Method / Conditions
Izod Impact (Unnotched, at 23°C) ¹¹No breakJ/mASTM D4812
Izod Impact (Unnotched, at -30°C) ¹¹No breakJ/mASTM D4812
Izod Impact (Notched, at 23°C) ¹¹100J/mASTM D256
Izod Impact (Notched, at -30°C) ¹¹81J/mASTM D256
Instrumented Dart Impact Total Energy (at 23°C) ¹¹64JASTM D3763
Izod Impact (Unnotched, 80*10*3, at 23°C) ¹¹No breakkJ/m²ISO 180/1U
Izod Impact (Unnotched, 80*10*3, at -30°C) ¹¹No breakkJ/m²ISO 180/1U
Izod Impact (Notched, 80*10*3, at 23°C) ¹¹9kJ/m²ISO 180/1A
Izod Impact (Notched, 80*10*3, at -30°C) ¹¹8kJ/m²ISO 180/1A
Charpy Impact (at 23°C, V-notch Edgew 80*10*3 sp=62mm) ¹¹10kJ/m²ISO 179/1eA
Charpy Impact (at -30°C, V-notch Edgew 80*10*3 sp=62mm) ¹¹7kJ/m²ISO 179/1eA
Charpy Impact (at 23°C, Unnotch Edgew 80*10*3 sp=62mm) ¹¹No breakkJ/m²ISO 179/1eU
Charpy Impact (at -30°C, Unnotch Edgew 80*10*3 sp=62mm) ¹¹No breakkJ/m²ISO 179/1eU
Injection Molding
ValueUnitsTest Method / Conditions
Drying Temperature ⁷120°C
Drying Time ⁷3 - 4Hrs
Drying Time (Cumulative) ⁷48Hrs
Maximum Moisture Content ⁷0.02%
Melt Temperature ⁷280 - 305°C
Nozzle Temperature ⁷275 - 300°C
Front - Zone 3 Temperature ⁷280 - 305°C
Middle - Zone 2 Temperature ⁷270 - 295°C
Rear - Zone 1 Temperature ⁷260 - 280°C
Mold Temperature ⁷70 - 95°C
Back Pressure ⁷0.3 - 0.7MPa
Screw Speed ⁷40 - 70rpm
Shot to Cylinder Size ⁷40 - 60%
Vent Depth ⁷0.025 - 0.076mm
Flame Characteristics
ValueUnitsTest Method / Conditions
UL Recognized (94V-2 Flame Class Rating) ᵖmin. 0.4mmUL 94
UL Recognized (94V-1 Flame Class Rating) ᵖmin. 1mmUL 94
UL Recognized (94V-0 Flame Class Rating) ᵖmin. 1.2mmUL 94
UL Recognized (94-5VA Flame Class Rating) ᵖmin. 3mmUL 94
Glow Wire Ignitability Temperature (at 3.0 mm) ᵖ850°CIEC 60695-2-13
Glow Wire Ignitability Temperature (at 1.2 mm) ᵖ850°CIEC 60695-2-13
Glow Wire Flammability Index (at 3 mm) ᵖ960°CIEC 60695-2-12
Glow Wire Flammability Index (at 1.2 mm) ᵖ960°CIEC 60695-2-12
UV-light (Water exposure/immersion) ᵖF1UL 746C
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.
 

Regulatory & Compliance

Certifications & Compliance
Compliance with Environmental Protocols

LEXAN CFR resins comply with a range of environmental protocols such as Restriction of Hazardous Substances (RoHS), TCO99 International, EPEAT, Ecoflower, Blue Angel, Nordic Swan and Japan PC Green, making this product a viable alternative for those seeking sustainable solutions.

Packaging & Availability

Regional Availability
  • Americas
  • Asia
  • Europe
  • North America