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Celanese Hytrel® 7246 TPC-ET
Categories: Polymer; Thermoplastic; Elastomer, TPE; Polyester TPE

Material Notes: 72 Shore D High Performance Polyester Elastomer

Former DuPont product acquired by Celanese in 2022.

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.26 g/cc0.0455 lb/in³ISO 1183
Melt Density 1.11 g/cc
@Temperature 245 °C
0.0401 lb/in³
@Temperature 473 °F
Water Absorption 0.30 %
@Time 86400 sec
0.30 %
@Time 24.0 hour
Immersion; Sim. to ISO 62
 0.60 %
@Thickness 2.00 mm
0.60 %
@Thickness 0.0787 in
Sim. to ISO 62
Moisture Absorption 0.200 %
@Thickness 2.00 mm
0.200 %
@Thickness 0.0787 in
Sim. to ISO 62
Linear Mold Shrinkage, Flow 0.016 cm/cm0.016 in/inISO 294-4, 2577
Linear Mold Shrinkage, Transverse 0.016 cm/cm0.016 in/inISO 294-4, 2577
Melt Flow  12 g/10 min
@Load 2.16 kg,
Temperature 240 °C
12 g/10 min
@Load 4.76 lb,
Temperature 464 °F
cm³/10min Volumetric; ISO 1133
 13 g/10 min
@Load 2.16 kg,
Temperature 240 °C
13 g/10 min
@Load 4.76 lb,
Temperature 464 °F
ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 646415s; ISO 48-4
 <= 68<= 68ISO 48-4
Tensile Stress at Strain  14.0 MPa
@Strain 5.0 %
2030 psi
@Strain 5.0 %
1BA specimen at 50mm/min; ISO 527-1/-2
 23.0 MPa
@Strain 10 %
3340 psi
@Strain 10 %
ISO 527-1/-2
 24.0 MPa
@Strain 50 %
3480 psi
@Strain 50 %
ISO 527-1/-2
Tensile Modulus 0.550 GPa79.8 ksiISO 527-1/-2
Flexural Modulus 0.550 GPa79.8 ksiISO 178
Poissons Ratio 0.470.47
Izod Impact, Notched (ISO)  7.00 kJ/m²
@Temperature -40.0 °C
3.33 ft-lb/in²
@Temperature -40.0 °F
ISO 180/1A
 38.0 kJ/m²
@Temperature 23.0 °C
18.1 ft-lb/in²
@Temperature 73.4 °F
ISO 180/1A
Charpy Impact, Notched  0.700 J/cm²
@Temperature -40.0 °C
3.33 ft-lb/in²
@Temperature -40.0 °F
ISO 179/1eA
 0.800 J/cm²
@Temperature -30.0 °C
3.81 ft-lb/in²
@Temperature -22.0 °F
ISO 179/1eA
 3.60 J/cm²
@Temperature 23.0 °C
17.1 ft-lb/in²
@Temperature 73.4 °F
ISO 179/1eA
Tensile Impact Strength 300 kJ/m²
@Temperature 23.0 °C
143 ft-lb/in²
@Temperature 73.4 °F
Notched; ISO 8256/1
Tensile Creep Modulus, 1 hour 360 MPa52200 psi1h; ISO 899-1
Tensile Creep Modulus, 1000 hours 310 MPa45000 psi1000h; ISO 899-1
Tear Strength 172 kN/m981 plinormal; ISO 34-1
 182 kN/m1040 pliparallel; ISO 34-1
Abrasion 100100mm3; ISO 4649
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 2.00e+12 ohm-cm2.00e+12 ohm-cmIEC 62631-3-1
Surface Resistance >= 1.00e+15 ohm>= 1.00e+15 ohmIEC 62631-3-2
Dielectric Constant  3.5
@Frequency 1e+6 Hz
3.5
@Frequency 1e+6 Hz
IEC 62631-2-1
 4.0
@Frequency 100 Hz
4.0
@Frequency 100 Hz
IEC 62631-2-1
Dielectric Strength 20.0 kV/mm508 kV/inIEC 60243-1
Dissipation Factor  0.016
@Frequency 100 Hz
0.016
@Frequency 100 Hz
IEC 62631-2-1
 0.030
@Frequency 1e+6 Hz
0.030
@Frequency 1e+6 Hz
IEC 62631-2-1
Comparative Tracking Index 600 V600 VIEC 60112
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 180 µm/m-°C100 µin/in-°FISO 11359-1/-2
 120 µm/m-°C
@Temperature -40.0 - 23.0 °C
66.7 µin/in-°F
@Temperature -40.0 - 73.4 °F
ISO 11359-1/-2
CTE, linear, Transverse to Flow 170 µm/m-°C94.4 µin/in-°FISO 11359-1/-2
 130 µm/m-°C
@Temperature -40.0 - 23.0 °C
72.2 µin/in-°F
@Temperature -40.0 - 73.4 °F
ISO 11359-1/-2
Specific Heat Capacity 2.15 J/g-°C
@Temperature 245 °C
0.514 BTU/lb-°F
@Temperature 473 °F
Melt
Thermal Conductivity 0.150 W/m-K
@Temperature 245 °C
1.04 BTU-in/hr-ft²-°F
@Temperature 473 °F
Melt
Melting Point 218 °C424 °F10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi) 100 °C212 °FISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi) 50.0 °C122 °FISO 75-1/-2
Vicat Softening Point 140 °C284 °F50°C/h, 50N; ISO 306
 205 °C401 °F50°C/h 10N; ISO 306
Brittleness Temperature -97.0 °C-143 °FISO 974
Glass Transition Temp, Tg 25.0 °C77.0 °F10°C/min; ISO 11357-1/-2
Flammability, UL94 HB
@Thickness 1.50 mm
HB
@Thickness 0.0591 in
IEC 60695-11-10
Oxygen Index 23 %23 %ISO 4589-1/-2
 
Processing PropertiesMetricEnglishComments
Melt Temperature 235 °C455 °FOptimum, Extrusion
 225 - 245 °C437 - 473 °FRange, Extrusion
 245 °C473 °FOptimum, Injection
 240 - 260 °C464 - 500 °FRange, Injection
Mold Temperature 45.0 °C113 °FOptimum, Injection
 45.0 - 55.0 °C113 - 131 °FInjection
Drying Temperature 100 - 120 °C212 - 248 °FExtrusion
 110 °C230 °FInjection
Dry Time 2.00 - 3.00 hour2.00 - 3.00 hourInjection, Dehumidified Dryer
 2.00 - 3.00 hour2.00 - 3.00 hourExtrusion, Dehumidified Dryer
Moisture Content <= 0.060 %<= 0.060 %Extrusion
 <= 0.080 %<= 0.080 %Injection
Hold Pressure <= 70.0 MPa<= 10200 psiInjection
 
Descriptive Properties
Drying RecommendedyesInjection
Eff. thermal diffusivity (m²/s)8E-08
Emission of organic compounds (µgC/g)300VDA 277
FMVSS ClassSE/BISO 3795 (FMVSS 302)
ISO designationISO 20029-TPC-ET,,GLN,70-22-075
Light stability delta a-0.1DIN 53236
Light stability delta b15DIN 53236
Light stability delta E16DIN 53236
Light stability delta l-3DIN 53236
Part Marking Code>TPC-ET<ISO 11469
PolymerTPC
Resin IdentificationTPC-ETISO 1043

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