LEXAN™ Copolymer EXL1414

1 of 148 products in this brand

SABIC's Specialties Business LEXAN™ EXL1414 polycarbonate (PC) siloxane copolymer resin is a medium flow opaque injection molding (IM) grade. This resin offers extreme low temperature (-40 C) ductility in combination with excellent processability and release with opportunities for shorter IM cycle times compared to standard PC. LEXAN™ EXL1414 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.

Polymer Name: Polycarbonate-Siloxane Copolymer

Additives Included: Heat Stabilizer

Processing Methods: Injection Molding

Flexural Modulus: 2250.0 - 2250.0 MPa

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Additives Included
Plastics & Elastomers Functions
Technologies

Features & Benefits

Labeling Claims
Potential Benefits of LEXAN EXL Resin
  • Impact: Best-in-class ductility to -60 ºC with an outstanding balance of ductility and viscosity.
  • Weatherability: Excellent retention of mechanical properties upon outdoor exposure.
  • Aging: Better retention of properties vs. other polycarbonate resins.
  • Flame retardance: FR grades can be used in many ECO-compliant applications.
  • Knitline strength: A significant improvement over PC/ABS material
  • Chemical resistance: Improved chemical resistance to some chemicals compared to standard polycarbonate
Processing Benefits

Extensive studies at SABIC’s Polymer Processing Development Center have found that compared to a standard polycarbonate resin of the same melt flow, LEXAN EXL resin often exhibits a 10% reduction in injection pressure (see Figure 1).

Note that the silicone component of the copolymer is bound to the resin, so there is very little tool deposit during molding. This still results in lower part ejection pressures (see Figure 2) due to its inherent high release properties.

Depending on tool design, it may be possible to reduce cycle times by up to 40% by using LEXAN EXL resin compared to PC resin. This may result in significant cost savings. Alternatively, if part release from the tool is a problem, LEXAN EXL resin may also be a useful solution.

Spiral flow studies have confirmed a significant improvement in flow length. It is also often possible to replace a standard 10-meltflow polycarbonate with a 17-meltflow LEXAN EXL resin, which has both improved flow and better low temperature ductility (see Figure 3)

 

Fig 1: Heat and Humidity Performance

LEXAN™ Copolymer EXL1414 - Processing Benefits

Fig 2: Effective viscosity @ 315°C melt / 82°C mold

LEXAN™ Copolymer EXL1414 - Processing Benefits - 1

Fig 3: Part ejection pressure

LEXAN™ Copolymer EXL1414 - Processing Benefits - 2

In summary, possible processing benefits when using LEXAN EXL resin (depending on tool design) include:
• Lower injection pressures
• Lower ejection pressures
• Higher flow
• Improved ductility/toughness
• Shorter production cycle time
• Lower draft angles
• Complete with snap fit, metal insert designs

The improved toughness of LEXAN EXL resin may offer a solution where standard PC or PC/ABS blends show limitations. Typically, LEXAN EXL resin will offer enhanced performance due to use of snap fit or metal insert designs and allowance for lower draft angles and lower levels of molded-in stresses, as compared to standard PC.

 

Flow and Ductility Benefits

 

LEXAN™ Copolymer EXL1414 - Processing Benefits - 3

Product Highlight

LEXAN EXL resins are available in pellet form for injection molding. The copolymer structure of LEXAN EXL resins combines the best of polycarbonate and siloxane properties, resulting in a significant upgrade to the polycarbonate and polycarbonate blend materials available in the market today.

The outstanding impact performance of these materials can be attributed to the low-temperature ductility of the silicone. And because silicone is relatively unaffected by heat or humidity under typical aging conditions, the materials retain their properties longer than standard polycarbonate resins.

Impact Performance

LEXAN™ Copolymer EXL1414 - Product Highlight

Applications & Uses

Plastics & Elastomers Processing Methods
Applications and Value Proposition

Applications

  • Self Balance Scooters/ Hoverboards
  • Power Banks
  • Drone Battery & Electrical Enclosure
  • Mobile Phones & Portable Devices
  • Fast Charging Enclosure

Value Propositions 

  • Non brominate, non chlorinate thin wall,(FR. Compliance with IEC 60695)
  • Superior ductility, similar as EXL 1414
  • -40°C low temperature impact resistance
  • Good chemical rsistance vs std. PC
  • Lower Draft Angles/ Lower Ejection pressure/ Faster cycle time

Properties

Flame Rating
Mechanical Properties
ValueUnitsTest Method / Conditions
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) ¹¹89ASTM D785
Hardness (Rockwell R) ¹¹1.21E+02ASTM 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
Tensile Strain (Break, 50 mm/min) ¹¹120%ISO 527
Tensile Modulus (at 1 mm/min) ¹¹2150MPaISO 527
Flexural Stress (Yield, at 2 mm/min) ¹¹85MPaISO 178
Flexural Modulus (at 2 mm/min) ¹¹2250MPaISO 178
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity ¹¹1.18ASTM 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
Thermal Properties
ValueUnitsTest Method / Conditions
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) ¹¹PassIEC 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
Relative Temperature Index (Electrical) ᵖ ¹¹130°CUL 746B
Relative Temperature Index (Mechanical with impact) ᵖ ¹¹120°CUL 746B
Relative Temperature Index (Mechanical without impact) ᵖ ¹¹130°CUL 746B
Electrical Properties
ValueUnitsTest Method / Conditions
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) ¹¹2.68ASTM D150
Relative Permittivity (1 MHz) ¹¹2.64ASTM D150
Dissipation Factor (at 100 Hz) ¹¹0.0012ASTM D150
Dissipation Factor (at at 1 MHz) ¹¹0.0093ASTM D150
Hot Wire Ignition (PLC 0) ¹¹min. 0.7mmUL 746A
High Ampere Arc Ignition (PLC 1) ¹¹min. 0.7mmUL 746A
Impact Properties
ValueUnitsTest Method / Conditions
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
Injection Molding
ValueUnitsTest Method / Conditions
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
Shot to Cylinder Size ⁷40 - 60%
Vent Depth ⁷0.025 - 0.076mm
Flame Characteristics
ValueUnitsTest Method / Conditions
UL Recognized (94HB Flame Class Rating) ᵖmin. 0.4mmUL 94
Glow Wire Ignitability Temperature (at 3.0 mm) ᵖ875°CIEC 60695-2-13
Glow Wire Ignitability Temperature (at 1.5 mm) ᵖ875°CIEC 60695-2-13
Glow Wire Ignitability Temperature (at 1.0 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) ᵖF1UL 746C
Oxygen Index (LOI) ᵖ35%ISO 4589
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

Packaging & Availability

Regional Availability
  • Americas
  • Asia
  • Europe
  • North America