Lumid® LW4203A(W)

About
Description Low Warpage Applications Automotive Parts(Engine Cover)&&

Product Description
SupplierLG Chemical
GenericPA 6+ABS
Material StatusCommercial: Active
FeaturesLow warping
AvailabilitysNorth America,Latin America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.27g/cm³ASTM D792
Shrinkage rate
MD:23℃,3.2 mm0.70 to 1.2%ASTM D955
Water absorption rate
balance1.2%ASTM D570

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch
23℃,3.2mm44J/mASTM D256

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed, 6.4 mm185ASTM D648
Melting peak temperature220ASTM D3418
Linear coefficient of thermal expansion
MD4.6E-51/℃ASTM D696

Electrical performanceNominal valueUnitTest method
Volume resistivity
23℃1.0E+15ohms·cmASTM D257
Dielectric strength
23 ℃,1 mm21kV/mmASTM D149
Dielectric constant
23 ℃,1 MHz3.00 ASTM D150
Arc resistance130secASTM D495

MECHANICALNominal valueUnitTest method
Rockwell hardness
R-level121 ASTM D785
tensile strength
Fracture, 3.20 mm88.3MPaASTM D638
Tensile strain
Fracture, 3.20 mm6.0%ASTM D638
Bending modulus
6.40 mm3920MPaASTM D790
bending strength
Yield, 6.40 mm137MPaASTM D790

Process Conditions
injectionNominal valueUnitTest method
Drying temperature80 to 100°C
Drying time4.0 to 5.0hr
Recommended maximum moisture content0.12%
Barrel rear temperature235 to 250°C
Barrel middle temperature240 to 265°C
Barrel front temperature240 to 265°C
Nozzle temperature250 to 275°C
Processing (melt) temperature250 to 275°C
Mold temperature80 to 100°C
Back pressure 50.981 to 2.94MPa
Screw speed60 to 150rpm

Notes
1. Typical properties: these are not to be construed as specifications.
2. 0.20 in/min
3. 0.11 in/min
4. 23°C
5. Hydraulic Type
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