Elexar® EL-1943A BLK 111

About
Elexar EL-1943A BLK 111 is a halogen-free thermoplastic elastomer designed for electrical applications requiring flexibility over a wide temperature range. Elexar EL-1943A BLK 111 is a high durometer grade that is UV stablized and is suitable for both injection molding and extrusion.&&

Product Description
SupplierTeknor Apex
GenericTPE
Material StatusCommercial: Active
FeaturesWeather resistance is good,Good heat aging resistance,Good flexibility,Good Hardness,Halogen free,Good Tensile Strength,Low temperature toughness,Moderate liquidity,Good wear resistance,HB
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density0.998g/cm³ASTM D792
Melt Flow Rate
200℃,5.0kg15g/10minASTM D1238

elastic bodyNominal valueUnitTest method
tensile strength
Fracture, 0.508 mm15.2MPaASTM D412
300% strain, 0.508 mm5.86MPaASTM D412
100% strain, 0.508 mm4.27MPaASTM D412
Tensile strain
Fracture, 0.508 mm600%ASTM D412

MECHANICALNominal valueUnitTest method
Shore hardness
Shaw’s A83 ASTM D2240

THERMALNominal valueUnitTest method
Continuous use temperature105ASTM D794
Embrittlement temperature-60.0ASTM D746
Relative temperature index
Electrical performance50.0UL 746
Strength mechanical performance50.0UL 746

Aging performanceNominal valueUnitTest method
The rate of change in tensile strength in air
136℃,168 hr4.0%ASTM D573
The rate of change in ultimate elongation in air
136℃,168 hr-8.0%ASTM D573
The rate of change in tensile strength
60℃,168 hr,in IRM 902 Oil-5.0%ASTM D471
Change in Ultimate Elongation(60℃,168 hr,in IRM 902 Oil)-7.0%ASTM D471

Electrical performanceNominal valueUnitTest method
Volume resistivity
50 ℃9.6E+16ohms·cmASTM D257
Dielectric strength38kV/mmASTM D149
Dielectric constant
1 kHz2.36 ASTM D150

FLAME CHARACTERISTICSNominal valueUnitTest method
0.80 mm, blackHB UL 94
Extreme oxygen index18%ASTM D2863

Process Conditions
injectionNominal valueUnitTest method
ExtrusionNominal valueUnitTest method
Barrel rear temperature199 to 216°C
Barrel middle temperature213 to 221°C
Barrel front temperature221 to 227°C
Nozzle temperature221 to 229°C
Processing (melt) temperature221 to 229°C
Mold temperature25 to 66°C
Injection pressure1.38 to 6.89MPa
Injection speedModerate-Fast 
Back pressure0.172 to 0.345MPa
Screw speed50 to 100rpm
Cushion3.81 to 25.4mm
Barrel 1 zone temperature193 to 210°C
Barrel 2 zone temperature199 to 216°C
Barrel 3 zone temperature213 to 221°C
Barrel 4 zone temperature213 to 221°C
Barrel 5 zone temperature221 to 227°C
Nozzle temperature221 to 229°C

Notes
1. Typical properties: these are not to be construed as specifications.
2. Die C, 20 in/min
3. die cut from extruded tapes
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