LEXAN™ 243R resin

About
10.5 MFR. UV-stabilized. Improved flame retardance. Internal mold release.&&

Product Description
SupplierSABIC
GenericPolycarbonate
Material StatusCommercial: Active
FeaturesWeather resistance is good,Excellent Processability,Good stripping performance,Flame Characteristics,V-2,V-0
AvailabilitysNorth America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Specific volume0.830cm³/gASTM D792
Density1.19g/cm³ASTM D792
Melt Flow Rate
300℃,1.20kg11g/10minASTM D1238
Shrinkage rate
MD:3.2 mm0.50 to 0.70%Internal Method
Water absorption rate ASTM D570
24hr0.15%ASTM D570
Equilibrium, 23 ℃0.35%ASTM D570
Equilibrium, 100 ℃0.58%ASTM D570
Weathering resistancef1 UL 746C

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch
23℃800J/mASTM D256
23℃3200J/mASTM D4812
Drop hammer impact
23℃169JASTM D3029
Tensile impact strength546kJ/m²ASTM D1822

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed, 6.4 mm132ASTM D648
0.45 MPa, unannealed, 6.4 mm138ASTM D648
Vicat Softening Temp154ASTM D1525 5
Linear coefficient of thermal expansion
MD:-40~95℃6.8E-51/℃ASTM E831
specific heat1260J/kg/℃ASTM C351
Thermal conductivity coefficient0.27W/m/KASTM C177
Relative temperature index
Electrical performance130UL 746
Strength mechanical performance130UL 746
Impact mechanical performance130UL 746

Electrical performanceNominal valueUnitTest method
Volume resistivity> 1.0E+17ohms·cmASTM D257
Dielectric strength
3.2 mm in air15kV/mmASTM D149
Dielectric constant ASTM D150
50 Hz3.17 ASTM D150
60 Hz3.17 ASTM D150
1 MHz2.96 ASTM D150
Dissipation factor ASTM D150
50 Hz9.0E-4 ASTM D150
60 Hz9.0E-4 ASTM D150
1 MHz0.010 ASTM D150
Compared to the leakage tracing indexPLC 2 UL 746
High Arc Burning Index (HAI)PLC 1 UL 746
High voltage arc marking rate
HVTRPLC 2 UL 746
Hot wire ignition
HWIPLC 4 UL 746

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant level UL 94
0.75 mmV-2 UL 94
6.00 mmV-0 UL 94
Extreme oxygen index25%ASTM D2863

optical performanceNominal valueUnitTest method
Refractive index1.586 ASTM D542
Transmittance
2540 µm88.0%ASTM D1003
Haze
2540 µm1.0%ASTM D1003

MECHANICALNominal valueUnitTest method
tensile strength
fracture65.5MPaASTM D638
yield62.1MPaASTM D638
Tensile strain
fracture110%ASTM D638
yield7.0%ASTM D638
Bending modulus
50 mm span2340MPaASTM D790
bending strength
Yield, 50 mm span93.1MPaASTM D790
Taber abraser
1000 cycles, 1000 g, CS-17 wheels10.0mgASTM D1044
Rockwell hardness ASTM D785
M-level70 ASTM D785
R-level118 ASTM D785

Process Conditions
injectionNominal valueUnitTest method
Drying temperature121°C
Drying time3.0 to 4.0hr
Drying time, maximum48hr
Recommended maximum moisture content0.020%
Recommended injection volume40 to 60%
Barrel rear temperature271 to 293°C
Barrel middle temperature282 to 304°C
Barrel front temperature293 to 316°C
Nozzle temperature288 to 310°C
Processing (melt) temperature293 to 316°C
Mold temperature71 to 93°C
Back pressure0.345 to 0.689MPa
Screw speed40 to 70rpm
Vent depth0.025 to 0.076mm

Notes
1. Typical properties: these are not to be construed as specifications.
2. Type I, 2.0 in/min
3. 0.051 in/min
4. Type S
5. Rate B (120°C/h), Loading 2 (50 N)
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