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Hytrel® 7246

THERMOPLASTIC POLYESTER ELASTOMER

Supplied by DuPont Performance Polymers

The technical datasheet with complete property values for Hytrel® 7246 is available to members of the Prospector Plastics Database.
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Product Description
Hytrel® 7246 is a high modulus grade with nominal hardness of 72D. It contains non-discoloring stabilizer. It can be processed by many conventional thermoplastic processing techniques like injection molding and extrusion.
General  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
  • Europe
  • North America
Additive 
  • Antioxidant
  • Heat Stabilizer
 
Features 
  • Food Contact Acceptable
  • Good Chemical Resistance
  • Good Creep Resistance
  • Heat Stabilized
  • High Energy Absorption
  • High Hardness
  • Noise Damping
Uses 
  • Automotive Applications
  • Cast Film
  • Coating Applications
  • Compounding
  • Filaments
  • Hose
  • Industrial Applications
  • Monofilaments
  • Sheet
  • Tubing
  • Wire & Cable Applications
RoHS Compliance 
Automotive Specifications 
  •  1
Appearance 
  • Light Beige
Processing Method 
  • Cast Film
  • Casting
  • Extrusion
  • Extrusion Coating
  • Filament Extrusion
  • Injection Molding
  • Profile Extrusion
  • Sheet Extrusion
Multi-Point Data 
  • Isochronous Stress vs. Strain (ISO 11403-1)
  • Isothermal Stress vs. Strain (ISO 11403-1)
  • Shear Modulus vs. Temperature (ISO 11403-1)
  • Viscosity vs. Shear Rate (ISO 11403-2)
 
Part Marking Code (ISO 11469)
  • >TPC-ET<
Resin ID (ISO 1043)
  • TPC-ET
Physical
Nominal Value
Unit
Test Method
Specific Gravity
     
--
 
ASTM D792
--
g/cm³
ISO 1183
Melt Mass-Flow Rate (MFR) (240°C/2.16 kg)
g/10 min
ASTM D1238, ISO 1133
Melt Volume-Flow Rate (MVR) (240°C/2.16 kg)
in³/10min
ISO 1133
Molding Shrinkage
     
Flow
in/in
ASTM D955
Across Flow: 0.0787 in
%
ISO 294-4
Flow: 0.0787 in
%
ISO 294-4
Water Absorption
     
73°F, 24 hr
%
ASTM D570, ISO 62
Saturation, 73°F
%
ISO 62
Equilibrium, 73°F, 50% RH
%
ISO 62
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus (73°F)
psi
ISO 527-2
Tensile Stress
     
Yield, 73°F
psi
ISO 527-2/1BA
Break, 73°F
psi
ASTM D638
Break, 73°F
psi
ISO 527-2/1BA
5.0% Strain, 73°F
psi
ASTM D638
10% Strain, 73°F
psi
ASTM D638
Tensile Stress
    ISO 527-2/1BA
10% Strain: 73°F
psi
 
5% Strain: 73°F
psi
 
Tensile Strain
     
Yield, 73°F
%
ISO 527-2/1BA
Break, 73°F
%
ASTM D638
Break, 73°F
%
ISO 527-2/1BA
Nominal Tensile Strain at Break (73°F)
%
ISO 527-2/1BA
Tensile Creep Modulus
    ISO 899-1
1 hr
psi
 
1000 hr
psi
 
Flexural Modulus
     
-40°F
psi
ASTM D790
73°F
psi
ASTM D790
212°F
psi
ASTM D790
-40°F
psi
ISO 178
73°F
psi
ISO 178
212°F
psi
ISO 178
Impact
Nominal Value
Unit
Test Method
Charpy Notched Impact Strength
    ISO 179/1eA
-40°F
ft·lb/in²
 
-22°F
ft·lb/in²
 
73°F
ft·lb/in²
 
Notched Izod Impact
     
-40°F
ft·lb/in
ASTM D256
73°F
ft·lb/in
ASTM D256
-40°F
ft·lb/in²
ISO 180/1A
73°F
ft·lb/in²
ISO 180/1A
Tensile Impact Strength (73°F)
ft·lb/in²
ISO 8256
Hardness
Nominal Value
Unit
Test Method
Durometer Hardness
     
Shore D
 
ASTM D2240, ISO 868
Shore D, 15 sec
 
ISO 868
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load
     
66 psi, Unannealed
°F
ASTM D648
66 psi, Unannealed
°F
ISO 75-2/B
264 psi, Unannealed
°F
ASTM D648
264 psi, Unannealed
°F
ISO 75-2/A
Brittleness Temperature
°F
ISO 974
Glass Transition Temperature
°F
ISO 11357-2
Melting Temperature 3
°F
ISO 11357-3, ASTM D3418
CLTE
     
Flow: -40 to 73°F
in/in/°F
ASTM E831, ISO 11359-2
Flow: 73 to 131°F
in/in/°F
ASTM E831
Flow: 131 to 248°F
in/in/°F
ASTM E831, ISO 11359-2
Flow: 73 to 131°F
in/in/°F
ISO 11359-2
Transverse: -40 to 73°F
in/in/°F
ASTM E831, ISO 11359-2
Transverse: 73 to 131°F
in/in/°F
ASTM E831
Transverse: 131 to 248°F
in/in/°F
ASTM E831, ISO 11359-2
Transverse: 73 to 131°F
in/in/°F
ISO 11359-2
Electrical
Nominal Value
Unit
Test Method
Surface Resistivity
ohms
IEC 60093
Volume Resistivity
ohm·cm
IEC 60093
Dielectric Strength
     
73°F, 0.0750 in 4
V/mil
ASTM D149
73°F
V/mil
IEC 60243-1
Dielectric Constant
     
73°F, 0.0750 in, 100 Hz
 
ASTM D150
73°F, 0.0750 in, 1 kHz
 
ASTM D150
73°F, 0.0750 in, 1 MHz
 
ASTM D150
73°F, 100 Hz
 
IEC 60250
73°F, 1 MHz
 
IEC 60250
Dissipation Factor
     
73°F, 0.0750 in, 100 Hz
 
ASTM D150
73°F, 0.0750 in, 1 kHz
 
ASTM D150
73°F, 0.0750 in, 1 MHz
 
ASTM D150
73°F, 100 Hz
 
IEC 60250
73°F, 1 MHz
 
IEC 60250
Comparative Tracking Index
V
IEC 60112
Flammability
Nominal Value
Unit
Test Method
Flame Rating - UL (0.0591 in)
 
UL 94
Flammability Classification (0.0591 in)
 
IEC 60695-11-10, -20
Oxygen Index
%
ISO 4589-2
UL
Nominal Value
Unit
Test Method
RTI Str (0.0591 in)
°F
UL 746
RTI Imp (0.0591 in)
°F
UL 746
RTI Elec (0.0591 in)
°F
UL 746
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Hytrel® 7246, Hytrel 7246, Hytrel® , Hytrel, Hytrel7246, 7246, Thermoplastic Copolyester Elastomer, TPC-ET, TPCET, TPC:ET, TPC/ET, TPC+ET, TPC_ET, TPC ET, Thermoplastic Elastomer, TPE, DuPont, ThermoplasticCopolyesterElastomer, ThermoplasticElastomer
Features
Features may also be described by the following terms: Good Chemical Resistance, Chemical Resistant, Good Creep Resistance, Creep Resistant, High Energy Absorption, High Hardness, Hard, Heat Stabilized, Heat-ageing Stabilized, Heat Ageing Stabilized, Heat-aging Stabilized, Heat Aging Stabilized.
Uses
Uses may also be described by the following terms: Cast Film, Tubing, Tube, Monofilaments, Monofilament, Compounding, Compounds, Automotive Applications, Automotive Sector, Wire and Cable Applications, Wire & Cable Applications.
Automotive Specifications
This plastic material has approval for 3 automotive specifications from the following agencies (the number in parentheses shows the number of specifications for that agency): ASTM (1), FORD (1), GM (1).
Injection
Nominal Value
Unit
 
Drying Temperature
°F
 
Drying Time
hr
 
Suggested Max Moisture
%
 
Melt Temperature, Optimum - Injection Molding
°F
 
Mold Temperature
°F
 
Mold Temperature, Optimum - Injection Molding
°F
 
Drying Recommended
 
 
Extrusion
Nominal Value
Unit
 
Drying Temperature
°F
 
Drying Time
hr
 
Suggested Max Moisture
%
 
Extrusion Melt Temperature, Optimum
°F
 
Notes
1This specification is applicable for the Americas region.
2Typical properties: these are not to be construed as specifications.
310°C/min
4Method A (Short-Time)
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.