LEXAN™ EXL1443T resin

About
LEXAN EXL1443T polycarbonate (PC) siloxane copolymer resin is an injection molding grade with FDA and EU food contact compliance. This resin offers excellent low temperature (-30 C) ductility in combination with medium flow characteristics and excellent processability with opportunities for shorter IM cycle times compared to standard PC. LEXAN EXL1443T resin is available in transparent and opaque colors and is an excellent candidate for a broad range of food contact applications.&&

Product Description
SupplierSABIC
GenericPolycarbonate
Material StatusCommercial: Active
FeaturesExcellent Processability,Ductility,Quick molding cycle,Food contact compliance,Moderate liquidity,Copolymer,V-2
AvailabilitysNorth America
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.19g/cm³ASTM D792
Density1.19g/cm³ISO 1183
Melt Flow Rate
300℃,1.20kg10g/10minASTM D1238
Melt Volume Rate
300℃,1.2 kg9.50cm³/10minISO 1133
Shrinkage rate
TD:3.2 mm0.40 to 0.80%Internal Method
MD:3.2 mm0.40 to 0.80%Internal Method
Water absorption rate
Saturation, 23 ℃0.12%ISO 62
Equilibrium, 23 ℃, 50% RH0.093%ISO 62

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength ISO 179/1eA
-30℃50kJ/m²ISO 179/1eA
23℃70kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength ISO 179/1eU
-30℃No Break ISO 179/1eU
23℃No Break ISO 179/1eU
Impact strength of cantilever beam notch ASTM D256
-30℃800J/mASTM D256
23℃890J/mASTM D256
Impact strength of cantilever beam notch ISO 180/1A
-30℃45kJ/m²ISO 180-1A
23℃65kJ/m²ISO 180-1A
Notched impact strength of cantilever beam ISO 180/1U
-30℃No Break ISO 180/1U
23℃No Break ISO 180/1U
Dart impact equipped with measuring instruments ASTM D3763
-30℃,Total Energy85.0JASTM D3763
23℃,Total Energy82.4JASTM D3763

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed, 64 mm span119ISO 75-2/Af
1.8 MPa, unannealed, 3.2 mm124ASTM D648
Vicat Softening Temp141ASTM D1525 10
Vicat Softening Temp 
B50141ISO 306
B120142ISO 306/B120
Ball pressure test
125℃Pass IEC 60695-10-2
Linear coefficient of thermal expansion
TD:23~80℃7.9E-51/℃ISO 11359-2
TD:-40~95℃7.9E-51/℃ASTM E831
MD:23~80℃7.2E-51/℃ISO 11359-2
MD:-40~95℃7.2E-51/℃ASTM E831
Relative temperature index
Electrical performance130UL 746
Strength mechanical performance130UL 746

Electrical performanceNominal valueUnitTest method
Surface resistivity> 1.0E+15ohmsASTM D257
Volume resistivity> 1.0E+15ohms·cmASTM D257

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant level UL 94
2.50 mmV-2 UL 94
3.00 mmV-2 UL 94
Glowing wire flammability index
3.0 mm960IEC 60695-2-12
Igniting temperature of the hot wire IEC 60695-2-13
0.8 mm825IEC 60695-2-13
3 mm825IEC 60695-2-13

optical performanceNominal valueUnitTest method
Transmittance
2540 µm82.0%ASTM D1003
Haze
2540 µm3.0%ASTM D1003

MECHANICALNominal valueUnitTest method
Tensile modulus2220MPaASTM D638
Tensile modulus2350MPaISO 527-1-2
tensile strength
fracture61.5MPaISO 527-2/50
fracture64.1MPaASTM D638
yield57.9MPaISO 527-2/50
yield58.0MPaASTM D638
Tensile strain
fracture130%ASTM D638
fracture120%ISO 527-2/50
yield5.5%ISO 527-2/50
yield5.8%ASTM D638
Bending modulus2150MPaISO 178
50 mm span2220MPaASTM D790
bending strength90.2MPaISO 178
bending strength
Yield, 50 mm span94.3MPaASTM D790
Rockwell hardness
Level L90 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 temperature217 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. 2.0 in/min
3. Type I, 2.0 in/min
4. 0.051 in/min
5. 0.079 in/min
6. at Yield
7. 80*10*3 sp=62mm
8. 80*10*3 mm
9. 80*10*4 mm
10. Rate A (50°C/h), Loading 1 (10 N)
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