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LEXAN™ Copolymer ML7664

SABIC's Specialties Business LEXAN ML7664 polycarbonate (PC) siloxane resin, is a product targeting (profile) extrusion applications requiring extreme low temperature ductility. LEXAN ML7664 resin is a non-FR product available in opaque colors only.

Product families

Applications

Applications
  • Consumer Goods — Appliances & Electronics
  • Consumer Goods — Housewares
  • Consumer Goods — Sports & Recreation
Automotive & Transportation — Automotive
  • Interior
Electrical & Electronics — Devices & Assemblies
  • Consumer Electronics
  • Displays
  • Lighting
Industrial — Military & Defense
  • Advanced Materials

Product Families

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

Other characteristics

Brand
LEXAN™ Copolymer
Polymer Name
Polycarbonate-Siloxane Copolymer
Flexural Modulus
2100.0 - 2100.0 MPa
Additives Included
  • Heat Stabilizer, Mold Release Agent
  • Heat Stabilizer
  • Mold Release Agent
Processing Methods
Profile Extrusion
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.; ¹⁰ Processing parameters are only mentioned as general guidelines. These may not apply or may need adjustment in specific situations.; 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
  • Automotive & Transportation
  • Consumer Goods
  • Electrical & Electronics
  • Industrial
Technology
Plastics
Material Features
  • Good Mold Release
  • Heat Stabilized
  • High Impact Performance
  • High Impact Resistance
  • Unreinforced
Plastics and Elastomers End Uses
  • Automotive Interior Parts
  • Cell Phones
  • Computer Components
  • Consumer Applications
  • Displays
  • Electrical Components
  • Electrical/Electronic Applications
  • Exercise Equipment
Plastics and Elastomers Functions
Resin
Plastics and Elastomers Processing Methods
Profile Extrusion

Technical data

Table 1 of 5

14 rows
CharacteristicValueUnitMethod
Tensile Stress (Yield, Type I, 50 mm/min) ¹¹60MPaASTM D638
Tensile Stress (Break, Type I, 50 mm/min) ¹¹56MPaASTM D638
Tensile Strain (Yield, Type I, 50 mm/min) ¹¹6%ASTM D638
Tensile Strain (Break, Type I, 50 mm/min) ¹¹86%ASTM D638
Tensile Modulus (at 5 mm/min) ¹¹2200MPaASTM D638
Flexural Stress (Yield, 1.3 mm/min, 50 mm span) ¹¹97MPaASTM D790
Flexural Modulus (at 1.3 mm/min, 50 mm span) ¹¹2300MPaASTM D790
Tensile Stress (Yield, 50 mm/min) ¹¹59MPaISO 527
Tensile Stress (Break, 50 mm/min) ¹¹59MPaISO 527
Tensile Strain (Yield, 50 mm/min) ¹¹6%ISO 527
Tensile Strain (Break, 50 mm/min) ¹¹76%ISO 527
Tensile Modulus (at 1 mm/min) ¹¹2300MPaISO 527

Table 2 of 5

7 rows
CharacteristicValueUnitMethod
Specific Gravity ¹¹1.19—ASTM D792
Mold Shrinkage (flow, 3.2 mm) ʰ ¹¹0.6 - 1%SABIC method
Melt Flow Rate (at 300°C, 1.2 kgf) ¹¹2.7g/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) ¹¹2cm³/10 minISO 1133

Table 3 of 5

9 rows
CharacteristicValueUnitMethod
Vicat Softening Temperature (Rate B/50) ¹¹144°CASTM D1525
Vicat Softening Temperature (Rate B/50) ¹¹143°CISO 306
Heat Deflection Temperature (at 1.82 MPa, 3.2mm, Unannealed) ¹¹127°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, flow) ¹¹0.000071/°CISO 11359-2
Coefficient of Thermal Expansion (at -40°C to 40°C, xflow) ¹¹0.000071/°CASTM E831
Coefficient of Thermal Expansion (at -40°C to 40°C, xflow) ¹¹0.000071/°CISO 11359-2
Vicat Softening Temperature (Rate B/120) ¹¹145°CISO 306
Heat Deflection Temperature/Af (at 1.8 Mpa, Flatw 80*10*4, sp=64mm) ¹¹125°CISO 75/Af

Table 4 of 5

11 rows
CharacteristicValueUnit
Drying Temperature ¹⁰120°C
Drying Time ¹⁰2 - 4Hrs
Melt Temperature ¹⁰280 - 300°C
Barrel - Zone 1 Temperature ¹⁰240 - 280°C
Barrel - Zone 2 Temperature ¹⁰260 - 290°C
Barrel - Zone 3 Temperature ¹⁰260 - 290°C
Barrel - Zone 4 Temperature ¹⁰260 - 290°C
Hopper Temperature ¹⁰100 - 120°C
Adapter Temperature ¹⁰270 - 300°C
Die Temperature ¹⁰260 - 290°C
Calibrator Temperature ¹⁰80 - 100°C

Table 5 of 5

6 rows
CharacteristicValueUnitMethod
Izod Impact (Notched, at 23°C) ¹¹847J/mASTM D256
Izod Impact (Notched, at -30°C) ¹¹710J/mASTM D256
Instrumented Dart Impact Total Energy (at 23°C) ¹¹72JASTM D3763
Izod Impact (Notched, 80*10*4, at 23°C) ¹¹64kJ/m²ISO 180/1A
Izod Impact (Notched, 80*10*4, at -30°C) ¹¹54kJ/m²ISO 180/1A
Charpy Impact (at 23°C, V-notch Edgew 80*10*4 sp=62mm) ¹¹77kJ/m²ISO 179/1eA

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