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LEXAN™ Copolymer EXL1434

SABIC's Specialties Business LEXAN™ EXL1434 polycarbonate (PC) siloxane copolymer resin is a medium flow opaque injection molding (IM) grade and is UV stabilized. This resin offers extreme low temperature (-40 C), exhibits excellent processability and release with opportunities for shorter IM cycle times compared to standard PC. LEXAN™ EXL1434 resin is a product available in wide range of opaque colors and may be an excellent candidate for a wide variety of applications. This product does not contain PFAS intentionally added during SHPP’s manufacturing process and are not expected to contain unintentional PFAS impurities. Each user is responsible for evaluating the presence of unintentional PFAS impurities.

Product families

Plastics — Engineering & Specialty Polymers
  • High Performance Thermoplastics
  • Polycarbonates

Other characteristics

Brand
LEXAN™ Copolymer
Polymer Name
Polycarbonate-Siloxane Copolymer
Flexural Modulus
2250.0 - 2250.0 MPa
Additives Included
  • Heat Stabilizer, UV Stabilizer
  • Heat Stabilizer
  • 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.

Markets
  • Automotive & Transportation
  • Building & Construction
  • Consumer Goods
  • Electrical & Electronics
  • Healthcare & Pharma
  • Industrial
Flame Rating
UL 94 HB
Technology
Plastics
Labeling Claims
No Added PFAS
Material Features
  • Excellent Low Temperature Ductility
  • Good Flow
  • Good Processability
  • Heat Stabilized
  • High Impact Performance
  • High Impact Resistance
  • Low Temperature Impact Resistance
  • Medium Flow
Certifications and Compliance
UL 94
Plastics and Elastomers End Uses
  • Appliances
  • Automotive Applications
  • Building Materials
  • Cell Phones
  • Computer Components
  • Construction Applications
  • Consumer Applications
  • Displays
Plastics and Elastomers Functions
Resin

Technical data

Table 1 of 7

16 rows
CharacteristicValueUnitMethod
Tensile Stress (Yield, Type I, 50 mm/min) ¹¹55MPaASTM D638
Tensile Stress (Break, Type I, 50 mm/min) ¹¹50MPaASTM D638
Tensile Strain (Yield, Type I, 50 mm/min) ¹¹6%ASTM D638
Tensile Strain (Break, Type I, 50 mm/min) ¹¹98%ASTM D638
Tensile Modulus (at 50 mm/min) ¹¹2020MPaASTM D638
Flexural Stress (Yield, 1.3 mm/min, 50 mm span) ¹¹92MPaASTM D790
Flexural Modulus (at 1.3 mm/min, 50 mm span) ¹¹2230MPaASTM D790
Hardness (Rockwell L) ¹¹89—ASTM D785
Hardness (Rockwell R) ¹¹121—ASTM D785
Tensile Stress (Yield, 50 mm/min) ¹¹57MPaISO 527
Tensile Stress (Break, 50 mm/min) ¹¹60MPaISO 527
Tensile Strain (Yield, 50 mm/min) ¹¹6%ISO 527

Table 2 of 7

8 rows
CharacteristicValueUnitMethod
Specific Gravity ¹¹1.18—ASTM D792
Mold Shrinkage (flow, 3.2 mm) ʰ ¹¹0.4 - 0.8%SABIC method
Mold Shrinkage (xflow, 3.2 mm) ʰ ¹¹0.4 - 0.8%SABIC method
Melt Flow Rate (at 300°C, 1.2 kgf) ¹¹10g/10 minASTM D1238
Density ¹¹1.19g/cm³ISO 1183
Water Absorption (at 23°C, saturated) ¹¹0.35%ISO 62-1
Moisture Absorption (at 23°C, 50% RH) ¹¹0.15%ISO 62
Melt Volume Rate (at 300°C, 1.2 kg) ¹¹9cm³/10 minISO 1133

Table 3 of 7

15 rows
CharacteristicValueUnitMethod
Vicat Softening Temperature (Rate B/50) ¹¹145°CASTM D1525
Vicat Softening Temperature (Rate B/50) ¹¹145°CISO 306
Heat Deflection Temperature (at 0.45 MPa, 3.2 mm, Unannealed) ¹¹139°CASTM D648
Heat Deflection Temperature (at 1.82 MPa, 3.2mm, Unannealed) ¹¹124°CASTM D648
Coefficient of Thermal Expansion (at -40°C to 40°C, flow) ¹¹0.000071/°CASTM E831
Coefficient of Thermal Expansion (at -40°C to 40°C, xflow) ¹¹0.00007471/°CASTM E831
Coefficient of Thermal Expansion (at 23°C to 80°C, flow) ¹¹0.0000721/°CISO 11359-2
Coefficient of Thermal Expansion (at 23°C to 80°C, xflow) ¹¹0.0000721/°CISO 11359-2
Ball Pressure Test (at 123°C to 127°C) ¹¹Pass—IEC 60695-10-2
Vicat Softening Temperature (Rate B/120) ¹¹146°CISO 306
Heat Deflection Temperature/Be (at 0.45MPa, Edgew 120*10*4, sp=100mm) ¹¹140°CISO 75/Be
Heat Deflection Temperature/Ae (at 1.8 Mpa, Edgew 120*10*4, sp=100mm) ¹¹128°CISO 75/Ae

Table 4 of 7

9 rows
CharacteristicValueUnitMethod
Volume Resistivity ¹¹min. 1.E+15Ω.cmASTM D257
Surface Resistivity ¹¹min. 1.E+15ΩASTM D257
Dielectric Strength (in oil, at 0.8mm) ¹¹16.2kV/mmASTM D149
Relative Permittivity (100 Hz) ¹¹2.68—ASTM D150
Relative Permittivity (1 MHz) ¹¹2.64—ASTM D150
Dissipation Factor (at 100 Hz) ¹¹0.0012—ASTM D150
Dissipation Factor (at at 1 MHz) ¹¹0.0093—ASTM D150
Hot Wire Ignition (PLC 0) ¹¹min. 0.7mmUL 746A
High Ampere Arc Ignition (PLC 1) ¹¹min. 0.7mmUL 746A

Table 5 of 7

11 rows
CharacteristicValueUnitMethod
Izod Impact (Notched, at 23°C) ¹¹865J/mASTM D256
Izod Impact (Notched, at -30°C) ¹¹774J/mASTM D256
Instrumented Dart Impact Total Energy (at 23°C) ¹¹70JASTM 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) ¹¹70kJ/m²ISO 180/1A
Izod Impact (Notched, 80*10*3, at -30°C) ¹¹60kJ/m²ISO 180/1A
Charpy Impact (at 23°C, V-notch Edgew 80*10*3 sp=62mm) ¹¹70kJ/m²ISO 179/1eA
Charpy Impact (at -30°C, V-notch Edgew 80*10*3 sp=62mm) ¹¹65kJ/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

Table 6 of 7

14 rows
CharacteristicValueUnit
Drying Temperature ⁷120°C
Drying Time ⁷3 - 4Hrs
Drying Time (Cumulative) ⁷48Hrs
Maximum Moisture Content ⁷0.02%
Melt Temperature ⁷295 - 315°C
Nozzle Temperature ⁷290 - 310°C
Front - Zone 3 Temperature ⁷295 - 315°C
Middle - Zone 2 Temperature ⁷280 - 305°C
Rear - Zone 1 Temperature ⁷270 - 295°C
Mold Temperature ⁷70 - 95°C
Back Pressure ⁷0.3 - 0.7MPa
Screw Speed ⁷40 - 70rpm

Table 7 of 7

11 rows
CharacteristicValueUnitMethod
UL Recognized (94HB Flame Class Rating) ᵖmin. 0.7mmUL 94
Glow Wire Ignitability Temperature (at 3.0 mm) ᵖ875°CIEC 60695-2-13
Glow Wire Ignitability Temperature (at 1.0 mm) ᵖ875°CIEC 60695-2-13
Glow Wire Ignitability Temperature (at 1.5 mm) ᵖ875°CIEC 60695-2-13
Glow Wire Ignitability Temperature (at 0.8 mm) ᵖ875°CIEC 60695-2-13
Glow Wire Flammability Index (at 3 mm) ᵖ960°CIEC 60695-2-12
Glow Wire Flammability Index (at 1.5 mm) ᵖ960°CIEC 60695-2-12
Glow Wire Flammability Index (at 1 mm) ᵖ960°CIEC 60695-2-12
Glow Wire Flammability Index (at 0.8 mm) ᵖ850°CIEC 60695-2-12
UV-light (Water exposure/immersion) ᵖF1—UL 746C
Oxygen Index (LOI) ᵖ37%ISO 4589

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