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Hytrel® 6356

Sold by DuPont
Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)
Processing Methods: Film Extrusion, Thermoforming, Casting, Injection Molding, Extrusion
End Uses: Fuel Tanks, Gears, Hoses, Cosmetic Packaging, Appliances, Pipes, Cables, Automotive Applications, Corrugated Pipe, Monofilaments, Sporting Goods, Thermoforming Applications, Wires, Tubing, Electrical/Electronic Applications, Office Automation Equipment
Density: 1220.0 kg/m³
Strain at Break: 300.0 %
Flexural Modulus: 290.0 MPa
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Identification & Functionality

Hytrel® 6356 Features & Benefits

Applications & Uses

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Modulus280MPaISO 527-1/-2
Flexural Modulus290MPaISO 178
Yield Stress20MPaISO 527-1/-2
Yield Strain31%ISO 527-1/-2
Poisson's Ratio0.48--
Stress (at 5% Strain)12MPaISO 527-1/-2
Abrasion Resistance110mm³ISO 4649
Stress (at 10% Strain)15MPaISO 527-1/-2
Stress (at 50% Strain)18.8MPaISO 527-1/-2
Stress (at 100% Strain)19MPaISO 527-1/-2
Stress (at Break)43MPaISO 527-1/-2
Nominal Strain (at Break)500%ISO 527-1/-2
Strain (at Break)min. 300%ISO 527-1/-2
Tensile Creep Modulus (1h)248MPaISO 899-1
Tensile Creep Modulus (1000h)182MPaISO 899-1
Notched Charpy Impact Strength (at 23°C)ᴾ120kJ/m²ISO 179/1eA
Notched Charpy Impact Strength (at -30°C)25kJ/m²ISO 179/1eA
Notched Charpy Impact Strength (at -40°C)15kJ/m²ISO 179/1eA
Tensile Notched Impact Strength (at 23°C)300kJ/m²ISO 8256/1
Notched Izod Impact Strength (at 23°C)81kJ/m²ISO 180/1A
Notched Izod Impact Strength (at -40°C)19kJ/m²ISO 180/1A
Hardness (Shore D, 15s)57-ISO 48-4 / ISO 868
Hardness (Shore D, Maximum)63-ISO 868
Tear Strength (Parallel)158kN/mISO 34-1
Tear Strength (Normal)145kN/mISO 34-1
Brittleness Temperature-96°CISO 974
Typical Properties
ValueUnitsTest Method / Conditions
Resin IdentificationTPC-ET-ISO 1043
Thermal Properties
ValueUnitsTest Method / Conditions
Specific Heat Capacity of Melt2150J/(kg K)-
Melt Temperature (at 10°C/min)210°CISO 11357-1/-3
Glass Transition Temperature (at 10°C/min)-5°CISO 11357-1/-2
Temperature of Deflection Under Load (1.8 Mpa)45°CISO 75-1/-2
Temperature of Deflection Under Load (0.45 Mpa)80°CISO 75-1/-2
Vicat Softening Temperature (at 50°C/H 50N)100°CISO 306
Vicat Softening Temperature (at 50°C/H 10N)195°CISO 306
Coefficient of Linear Thermal Expansion (Parallel)190E-6/KISO 11359-1/-2
Coefficient of Linear Thermal Expansion (Normal)176E-6/KISO 11359-1/-2
Coefficient of Linear Thermal Expansion (Normal, at 23-55°C)170E-6/KASTM E 831
Coefficient of Linear Thermal Expansion (Normal, at -40 to 23°C)150E-6/KISO 11359-1/-2
Coefficient of Linear Thermal Expansion (Parallel, at 23-55°C)190E-6/KASTM E 831
Coefficient of Linear Thermal Expansion (Parallel, at -40 to 23°C)160E-6/KISO 11359-1/-2
Relative Thermal Index (Electrical, 1.5mm)85°CUL 746B
Relative Thermal Index (Electrical, 3mm)85°CUL 746B
Relative Thermal Index (Impact, 1.5mm)85°CUL 746B
Relative Thermal Index (Impact, 3mm)85°CUL 746B
Relative Thermal Index (Strength, 1.5mm)75°CUL 746B
Relative Thermal Index (Strength, 3mm)80°CUL 746B
TGA curveavailable-ISO 11359-1/-2
Effective Thermal Diffusivity5.44e-08m²/s-
Thermal Conductivity of Melt0.15W/(m K)ISO 22007-2
Electrical Properties
ValueUnitsTest Method / Conditions
Surface Resistivitymin. 1E15OhmIEC 62631-3-2
Electric Strength20kV/mmIEC 60243-1
Relative Permittivity (at 100Hz)4.6-IEC 62631-2-1
Relative Permittivity (at 1MHz)4.1-IEC 62631-2-1
Dissipation Factor (at 100 Hz)120E-4IEC 62631-2-1
Dissipation Factor (at 1 MHz)360E-4IEC 62631-2-1
Volume Resistivity800000000000Ohm.mIEC 62631-3-1
Flammability
ValueUnitsTest Method / Conditions
Oxygen Index21%ISO 4589-1/-2
FMVSS ClassSE-ISO 3795 (FMVSS 302)
Burning Behavior (at 1.5mm Nominal Thickness)UL94 HBclassIEC 60695-11-10
Burning Behavior (at 3mm Thickness)UL94 HBclassIEC 60695-11-10
Other Properties
ValueUnitsTest Method / Conditions
Humidity Absorption (at 2mm)0.2%Sim. to ISO 62
Water Absorption (at 2mm)0.6%Sim. to ISO 62
Water Absorption (Immersion 24h)0.5%Sim. to ISO 62
Density1220kg/m³ISO 1183
Density of Melt1060kg/m³-
Processing Information (Extrusion)
ValueUnitsTest Method / Conditions
Melt Temperature Range225 - 240°C-
Melt Temperature (Optimum)230°C-
Drying Time (Dehumidified Dryer)2 - 3h-
Drying Temperature90 - 110°C-
Processing Moisture Contentmax. 0.06%-
Processing Information (Injection Molding)
ValueUnitsTest Method / Conditions
Drying Temperature100°C-
Drying Recommendedyes--
Drying Time (Dehumidified Dryer)2 - 3h-
Processing Moisture Contentmax. 0.08%-
Hold Pressure Rangemax. 70MPa-
Melt Temperature (Optimum)240°C-
Melt Temperature (Minimum)235°C-
Melt Temperature (Maximum)260°C-
Mold Temperature (Optimum)45°C-
Mold Temperature (Minimum)45°C-
Mold Temperature (Maximum)55°C-
VDA Properties
ValueUnitsTest Method / Conditions
Emission of Organic Compounds2.5µgC/gVDA 277
Odor2.5classVDA 270
Fogging (G-Value, Condensate)0.1mgISO 6452
Rheological Properties
ValueUnitsTest Method / Conditions
Melt Volume-Flow Rate (at 230°C, 2.16 kg)8.5cm³/10minISO 1133
Melt Mass Flow Rate (at 230°C, 2.16 kg)9g/10minISO 1133
Mold Shrinkage (Parallel)1.5%ISO 294-4, 2577
Mold Shrinkage (Normal)1.5%ISO 294-4, 2577
Note
  • [P]: Partial Break
Chemical Resistance
Chemical Type Chemical Name Resistance
Acids Acetic Acid (5% by mass) (23°C) Probably Resistant
Acids Chromic Acid solution (40% by mass) (23°C) Not Recommended
Acids Citric Acid solution (10% by mass) (23°C) Probably Resistant
Acids Hydrochloric Acid (36% by mass) (23°C) Not Recommended
Acids Lactic Acid (10% by mass) (23°C) Probably Resistant
Acids Nitric Acid (40% by mass) (23°C) Not Recommended
Acids Sulfuric Acid (38% by mass) (23°C) Not Recommended
Acids Sulfuric Acid (5% by mass) (23°C) Probably Resistant
Alcohols Ethanol (23°C) Probably Resistant
Alcohols Isopropyl alcohol (23°C) Probably Resistant
Alcohols Methanol (23°C) Probably Resistant
Bases Ammonium Hydroxide solution (10% by mass) (23°C) Probably Resistant
Bases Sodium Hydroxide solution (1% by mass) (23°C) Probably Resistant
Bases Sodium Hydroxide solution (35% by mass) (23°C) Probably Resistant
Ethers Diethyl ether (23°C) Not Recommended
Hydrocarbons iso-Octane (23°C) Probably Resistant
Hydrocarbons n-Hexane (23°C) Probably Resistant
Hydrocarbons Toluene (23°C) Probably Resistant
Ketones Acetone (23°C) Not Recommended
Mineral oils Insulating Oil (23°C) Probably Resistant
Mineral oils SAE 10W40 multigrade motor oil (130°C) Not Recommended
Mineral oils SAE 10W40 multigrade motor oil (23°C) Probably Resistant
Mineral oils SAE 80/90 hypoid-gear oil (130°C) Not Recommended
Other 1% nonylphenoxy-polyethyleneoxy ethanol in water (23°C) Probably Resistant
Other 50% Oleic acid + 50% Olive Oil (23°C) Probably Resistant
Other Coolant Glysantin G48, 1:1 in water (125°C) Not Recommended
Other DOT No. 4 Brake fluid (130°C) Not Recommended
Other Ethyl Acetate (23°C) Probably Resistant
Other Ethylene Glycol (50% by mass) in water (108°C) Not Recommended
Other Hydrogen peroxide (23°C) Not Recommended
Other Phenol solution (5% by mass) (23°C) Probably Resistant
Other Water (23°C) Probably Resistant
Other Water (90°C) Not Recommended
Salt solutions Sodium Carbonate solution (2% by mass) (23°C) Probably Resistant
Salt solutions Sodium Carbonate solution (20% by mass) (23°C) Probably Resistant
Salt solutions Sodium Chloride solution (10% by mass) (23°C) Probably Resistant
Salt solutions Sodium Hypochlorite solution (10% by mass) (23°C) Not Recommended
Salt solutions Zinc Chloride solution (50% by mass) (23°C) Probably Resistant
Standard Fuels Diesel fuel (pref. ISO 1817 Liquid F) (>90°C) Not Recommended
Standard Fuels Diesel fuel (pref. ISO 1817 Liquid F) (23°C) Probably Resistant
Standard Fuels Diesel fuel (pref. ISO 1817 Liquid F) (90°C) Probably Resistant
Standard Fuels ISO 1817 Liquid 1 - E5 (60°C) Not Recommended
Standard Fuels ISO 1817 Liquid 2 - M15E4 (60°C) Not Recommended
Standard Fuels ISO 1817 Liquid 3 - M3E7 (60°C) Not Recommended
Standard Fuels ISO 1817 Liquid 4 - M15 (60°C) Not Recommended
Standard Fuels Standard fuel with alcohol (pref. ISO 1817 Liquid 4) (23°C) Probably Resistant
Standard Fuels Standard fuel without alcohol (pref. ISO 1817 Liquid C) (23°C) Probably Resistant

Regulatory & Compliance

Technical Details & Test Data

Viscosity vs Shear Rate

DuPont Hytrel 6356 Viscosity vs Shear Rate

Shear Stress vs Shear Rate

DuPont Hytrel 6356 Shear Stress vs Shear Rate

Dynamic Tensile Modulus vs Temperature

DuPont Hytrel 6356 Dynamic Tensile Modulus vs Temperature

Stress vs Strain

DuPont Hytrel 6356 Stress vs Strain

Stress vs Strain (TPE)

DuPont Hytrel 6356 Stress vs Strain (TPE)

Secant Modulus vs Strain

DuPont Hytrel 6356 Secant Modulus vs Strain

Stress vs Strain (Isochronous, 23°C)

DuPont Hytrel 6356 Stress vs Strain (Isochronous, 23°C)

Creep Modulus vs Time (23°C)

DuPont Hytrel 6356 Creep Modulus vs Time (23°C)

Stress vs Strain (Isochronous, 40°C)

DuPont Hytrel 6356 Stress vs Strain (Isochronous, 40°C)

Creep Modulus vs Time (40°C)

DuPont Hytrel 6356 Creep Modulus vs Time (40°C)

Stress vs Strain (Isochronous, 80°C)

DuPont Hytrel 6356 Stress vs Strain (Isochronous, 80°C)

Creep Modulus vs Time (80°C)

DuPont Hytrel 6356 Creep Modulus vs Time (80°C)

Specific Volume Temperature (pvT)

DuPont Hytrel 6356 Specific Volume Temperature (pvT)

LTHA Stress at Break (2mm)

DuPont Hytrel 6356 LTHA Stress at Break (2mm)

LTHA Strain at Break (2mm)

DuPont Hytrel 6356 LTHA Strain at Break (2mm)

Packaging & Availability

Regional Availability