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LNP™ ELCRES™ CRX5421

SABIC's Specialties Business LNP ELCRES CRX5421 is a semi-crystalline Polycarbonate (PC) copolymer/Polybutylene Terephthalate (PBT) opaque blend. This resin offers medium flow, high ductility in combination with excellent chemical resistance. This grade is available for custom coloring and may be an excellent candidate for a wide variety of applications that need improved chemical resistance.

Product families

Plastics — Engineering & Specialty Polymers
  • Blends & Alloys

Other characteristics

Brand
LNP™ ELCRES
Density
1300.0 - 1300.0 kg/m³
Polymer Name
PC/PBT Alloy
Processing Methods
Injection Molding
Note

ᵍ 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
Opaque
Markets
  • Electrical & Electronics
  • Healthcare & Pharma
  • Printing & Packaging
Flame Rating
UL 94 HB
Technology
Plastics
Material Features
  • Chemical Resistant
  • Good Colorability
  • Good Flow
  • High Ductility
  • High Impact Resistance
  • Medium Flow
  • Pigmentable
  • Unreinforced
Country Availability
  • Canada
  • China (Mainland)
  • Mexico
  • USA
Potential Applications
  • Insulin pump
  • Infusion pump
  • Dental chair components
  • Ultrasound monitor
  • Hospital bed components
  • Surgical tools
  • Imaging devices

Technical data

Table 1 of 7

5 rows
CharacteristicValueUnitMethod
Specific Gravity ¹¹1.3—ASTM D792
Mold Shrinkage (flow) ᵍ ¹¹1 - 1.6%SABIC method
Mold Shrinkage (xflow) ᵍ ¹¹0.9 - 1.6%SABIC method
Melt Volume Rate (at 250°C, 5 kg) ¹¹10cm³/10 minASTM D1238
Melt Flow Rate (at 250°C, 5 kgf) ¹¹11g/10 minASTM D1238

Table 2 of 7

10 rows
CharacteristicValueUnitMethod
Tensile Stress (Yield, Type I, 50 mm/min) ¹¹42MPaASTM D638
Tensile Strain (Yield, Type I, 50 mm/min) ¹¹4%ASTM D638
Tensile Strain (Break, Type I, 50 mm/min) ¹¹70%ASTM D638
Tensile Modulus (at 50 mm/min) ¹¹1820MPaASTM D638
Flexural Modulus (at 1.3 mm/min, 50 mm span) ¹¹1980MPaASTM D790
Flexural Strength (at 1.3 mm/min, 50 mm span) ¹¹68MPaASTM D790
Tensile Stress (Yield, 50 mm/min) ¹¹42MPaISO 527
Tensile Strain (Yield, 50 mm/min) ¹¹4%ISO 527
Tensile Strain (Break, 50 mm/min) ¹¹70%ISO 527
Tensile Modulus (at 1 mm/min) ¹¹1850MPaISO 527

Table 3 of 7

4 rows
CharacteristicValueUnitMethod
Heat Deflection Temperature (at 0.45 MPa, 3.2 mm, Unannealed) ¹¹123°CASTM D648
Heat Deflection Temperature (at 1.82 MPa, 3.2mm, Unannealed) ¹¹64°CASTM D648
Vicat Softening Temperature (Rate B/120) ¹¹136°CASTM D1525
Vicat Softening Temperature (Rate B/50) ¹¹129°CASTM D1525

Table 4 of 7

6 rows
CharacteristicValueUnitMethod
Dielectric Constant (at 100 MHz)2.87E+00—SABIC method
Dielectric Constant (at 2.47)2.84—SABIC method
Dissipation Factor (at 100 MHz)0.0082—SABIC method
Dissipation Factor (at 2.47 GHz)0.0057—SABIC method
Surface Resistivitymin. 1.E+14ΩASTM D257
Volume Resistivitymin. 1.E+14Ω.cmASTM D257

Table 5 of 7

6 rows
CharacteristicValueUnitMethod
Instrumented Dart Impact Energy (Peak, at 23°C) ¹¹34JASTM D3763
Instrumented Dart Impact Total Energy (at 23°C) ¹¹60JASTM D3763
Izod Impact (Notched, 80*10*3, at 23°C) ¹¹54kJ/m²ISO 180/1A
Izod Impact (Notched, 80*10*4, at 23°C) ¹¹53kJ/m²ISO 180/1A
Izod Impact (Notched, at -30°C) ¹¹180J/mASTM D256
Izod Impact (Notched, at 23°C) ¹¹645J/mASTM D256

Table 6 of 7

14 rows
CharacteristicValueUnit
Back Pressure ⁷0.3 - 0.7MPa
Drying Temperature ⁷120°C
Drying Time (Cumulative) ⁷12Hrs
Drying Time ⁷3 - 4Hrs
Front - Zone 3 Temperature ⁷235 - 250°C
Maximum Moisture Content ⁷0.02%
Melt Temperature ⁷240 - 255°C
Middle - Zone 2 Temperature ⁷230 - 245°C
Mold Temperature ⁷50 - 70°C
Nozzle Temperature ⁷240 - 255°C
Rear - Zone 1 Temperature ⁷225 - 240°C
Screw Speed ⁷50 - 100rpm

Table 7 of 7

1 row
CharacteristicValueUnitMethod
UL Recognized (94HB Flame Class Rating) ᵖ ᵖmin. 0.75mmUL 94

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