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Ensinger PEI

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SABIC LEXAN™ FR Resin ML7682 Polycarbonate (PC)
Categories: Polymer; Thermoplastic; Polycarbonate (PC)

Material Notes: LEXAN ML7682 Polycarbonate (PC) is an injection moldable non-chlorinated/brominated, unfilled flame retardant grade with high flow and good heat and impact resistance. It is UV stabilized and has an MVR of 21 (300°C/1.2kg) and a UL94 V0@1.8mm, and is available in opaque color options.

Features: Flame Retardant,UV Resistant,Translucent,Non-Chlorinated,Non-Brominated,Good Processability

Information provided by SABIC

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.22 g/ccASTM D792
Density 1.21 g/ccISO 1183
Moisture Absorption 0.0200 %Injection Molding
 0.170 %23°C / 50% RH; ISO 62
Water Absorption at Saturation 0.36 %ISO 62-1
Viscosity 21 cP
@Load 1.20 kg,
Temperature 300 °C
MVR cc/10 min; ISO 1133
Linear Mold Shrinkage, Flow 0.0060 - 0.0080 cm/cm
@Thickness 3.20 mm
SABIC method
Linear Mold Shrinkage, Transverse 0.0060 - 0.0080 cm/cm
@Thickness 3.20 mm
SABIC method
Melt Flow 22 g/10 min
@Load 1.20 kg,
Temperature 300 °C
ASTM D1238
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength at Break 57.0 MPa50 mm/min; ISO 527
 59.0 MPa50 mm/min; ASTM D638
Tensile Strength, Yield 60.0 MPa50 mm/min; ASTM D638
 60.0 MPa50 mm/min; ISO 527
Elongation at Break 91 %50 mm/min; ISO 527
 93 %50 mm/min; ASTM D638
Elongation at Yield 5.3 %50 mm/min; ISO 527
 5.6 %50 mm/min; ASTM D638
Tensile Modulus 2460 MPa1 mm/min; ISO 527
 2500 MPa50 mm/min; ASTM D638
Flexural Strength 89.0 MPayld, 1.3 mm/min, 50 mm span; ASTM D790
 90.0 MPayield, 2 mm/min; ISO 178
Flexural Modulus 2400 MPa1.3 mm/min, 50 mm span; ASTM D790
 2430 MPa2 mm/min; ISO 178
Izod Impact Notched 760 JASTM D256
 130 J
@Temperature -30.0 °C
ASTM D256
Izod Impact, Unnotched 2150 J/mASTM D4812
 2100 J/m
@Temperature -30.0 °C
ASTM D4812
Izod Impact, Notched (ISO) 63.0 kJ/m²80*10*3; ISO 180/1A
 15.0 kJ/m²
@Temperature -30.0 °C
80*10*3; ISO 180/1A
Izod Impact, Unnotched (ISO) 181 kJ/m²80*10*3; ISO 180/1U
 180 kJ/m²
@Temperature -30.0 °C
80*10*3; ISO 180/1U
Charpy Impact Unnotched 133 kJ/m²Edgew 80*10*3 sp=62mm; ISO 179/1eU
 132 kJ/m²
@Temperature -30.0 °C
Edgew 80*10*3 sp=62mm; ISO 179/1eU
Charpy Impact, Notched 62.0 kJ/m²Edgew 80*10*3 sp=62mm; ISO 179/1eA
 16.0 kJ/m²
@Temperature -30.0 °C
Edgew 80*10*3 sp=62mm; ISO 179/1eA
Dart Drop, Total Energy 62.0 JASTM D3763
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 1.00e+15 - 1.00e+16 ohm-cmASTM D257
Surface Resistance 1.00e+15 - 1.00e+16 ohmASTM D257
Comparative Tracking Index 175 - 250 VUL 746A
Hot Wire Ignition, HWI >= 120 sec
@Thickness >=1.50 mm
UL 746A
High Amp Arc Ignition, HAI 60 - 120 arcs
@Thickness >=1.50 mm
UL 746A
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 64.0 µm/m-°C
@Temperature -40.0 - 40.0 °C
ASTM E831
 67.0 µm/m-°C
@Temperature 23.0 - 80.0 °C
ISO 11359-2
CTE, linear, Transverse to Flow 68.0 µm/m-°C
@Temperature -40.0 - 40.0 °C
ASTM E831
 74.0 µm/m-°C
@Temperature 23.0 - 80.0 °C
ISO 11359-2
Hot Ball Pressure Test 125 °CPASS; IEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi) 132 °CEdgew 120*10*4 sp=100mm; ISO 75/Be
 131 °C
@Thickness 3.20 mm
unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 120 °CEdgew 120*10*4 sp=100mm; ISO 75/Ae
 119 °C
@Thickness 3.20 mm
unannealed; ASTM D648
Vicat Softening Point 138 °CRate B/50; ASTM D1525
 138 °CRate B/50; ISO 306
 141 °CRate B/120; ISO 306
UL RTI, Electrical 125 °CUL 746B
UL RTI, Mechanical with Impact 110 °CUL 746B
UL RTI, Mechanical without Impact 120 °CUL 746B
Flammability, UL94 V-0
@Thickness >=1.50 mm
UL 94
 5VB
@Thickness >=1.50 mm
UL 94
 5VA
@Thickness >=2.50 mm
UL 94
Glow Wire Ignition Temperature 825 °C
@Thickness 1.50 mm
IEC 60695-2-13
 825 °C
@Thickness 2.50 mm
IEC 60695-2-13
 850 °C
@Thickness 3.00 mm
IEC 60695-2-13
Glow Wire Flammability Index 960 °C
@Thickness 1.50 mm
IEC 60695-2-12
 960 °C
@Thickness 2.50 mm
IEC 60695-2-12
 960 °C
@Thickness 3.00 mm
IEC 60695-2-12
 
Processing PropertiesOriginal ValueComments
Nozzle Temperature 280 - 305 °C
Zone 2 275 - 300 °C
Zone 3 290 - 310 °C
Melt Temperature 290 - 310 °CInjection Molding
Mold Temperature 70.0 - 95.0 °C
Drying Temperature 120 °CInjection Molding
Dry Time 3.00 - 4.00 hourInjection Molding
 48.0 hourCumulative; Injection Molding
Back Pressure 0.300 - 0.700 MPa
Shot Size 40 - 60 %
Vent Depth 0.00250 - 0.00760 cm
Screw Speed 40 - 70 rpm
 
Descriptive Properties
UV-light, water exposure/immersionF1UL 746C

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