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Elmet Technologies

LG Chemical KEYFLEX BT 2140D Ester Type TPE
Categories: Polymer; Thermoplastic; Elastomer, TPE; Polyester, TP; Polyester Thermoplastic Elastomer
Material Notes: Description: Injection Molding, TPC-ET, Specialty, Low Modulus

Application: Films & Sheets

CAS: 37282-12-5

Information provided by LG Chemical
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Physical PropertiesMetricEnglishComments
Specific Gravity 1.14 g/cc1.14 g/ccASTM D792
Water Absorption 0.60 %
@Temperature 23.0 °C,
Time 86400 sec		0.60 %
@Temperature 73.4 °F,
Time 24.0 hour		ASTM D570
Molecular Weight 458.458 g/mol458.458 g/mol
Maximum Moisture Content 0.0100.010Injection Molding
 0.0100.010Extrusion Molding
Melt Flow 5.0 g/10 min
@Load 2.16 kg,
Temperature 230 °C		5.0 g/10 min
@Load 4.76 lb,
Temperature 446 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore A 9595ASTM D2240
Hardness, Shore D 3939ASTM D2240
Tensile Strength at Break 29.1 MPa
@Thickness 2.00 mm		4220 psi
@Thickness 0.0787 in		50mm/min; ASTM D638
Elongation at Break 700 %
@Thickness 2.00 mm		700 %
@Thickness 0.0787 in		50mm/min; ASTM D638
Flexural Modulus 0.0588 GPa
@Thickness 6.40 mm		8.53 ksi
@Thickness 0.252 in		15mm/min; ASTM D790
Izod Impact, Notched  NB
@Thickness 6.40 mm,
Temperature 23.0 °C		NB
@Thickness 0.252 in,
Temperature 73.4 °F		ASTM D256
 NB
@Thickness 6.40 mm,
Temperature -40.0 °C		NB
@Thickness 0.252 in,
Temperature -40.0 °F		ASTM D256
 
Electrical PropertiesMetricEnglishComments
Comparative Tracking Index 600 V600 VSolution A; IEC 60112
 
Thermal PropertiesMetricEnglishComments
Melting Point 200 °C392 °FPeak
Deflection Temperature at 0.46 MPa (66 psi) 70.0 °C
@Thickness 6.40 mm		158 °F
@Thickness 0.252 in		Unannealed; ASTM D648
 
Processing PropertiesMetricEnglishComments
Rear Barrel Temperature 210 - 230 °C410 - 446 °FInjection Molding
Middle Barrel Temperature 220 - 240 °C428 - 464 °FInjection Molding
Front Barrel Temperature 230 - 250 °C446 - 482 °FInjection Molding
Nozzle Temperature 230 - 250 °C446 - 482 °FInjection Molding
Zone 1 210 - 230 °C410 - 446 °FExtrusion Molding
Zone 2 220 - 240 °C428 - 464 °FExtrusion Molding
Zone 3 220 - 240 °C428 - 464 °FExtrusion Molding
Zone 4 230 - 250 °C446 - 482 °FExtrusion Molding
Adapter Temperature 230 - 250 °C446 - 482 °FExtrusion Molding
Die Temperature 220 - 260 °C428 - 500 °FExtrusion Molding
Melt Temperature 200 - 250 °C392 - 482 °FInjection Molding
 200 - 250 °C392 - 482 °FExtrusion Molding
Mold Temperature 20.0 - 40.0 °C68.0 - 104 °FInjection Molding
Drying Temperature 80.0 - 90.0 °C176 - 194 °FInjection Molding
 80.0 - 90.0 °C176 - 194 °FExtrusion Molding
Dry Time 3.00 - 4.00 hour3.00 - 4.00 hourInjection Molding
 3.00 - 4.00 hour3.00 - 4.00 hourExtrusion Molding

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