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Hytrel® HTR8241

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Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)
Processing Methods: Coating, Extrusion, Film Extrusion, Sheet, Plaques & Profiles Extrusion, Casting, Injection Molding
End Uses: Hoses, Appliances, Pipes, Office Automation Equipment
Density: 1240.0 kg/m³
Strain at Break: 300.0 %
Flexural Modulus: 360.0 MPa
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Identification & Functionality

Hytrel® HTR8241 Features & Benefits

Applications & Uses

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Modulus360MPaASTM D 638
Flexural Modulus360MPaISO 178
Charpy Impact Strength (23°C)No BreakkJ/m2ISO 179/1eU
Charpy Impact Strength (-30°C)No BreakkJ/m2ISO 179/1eU
Charpy Notched Impact Strength (23°C)No BreakkJ/m2ISO 179/1eA
Charpy Notched Impact Strength (-30°C)14kJ/m2ISO 179/1eA
Charpy Notched Impact Strength (-40°C)10kJ/m²ISO 179/1eA
Izod Notched Impact Strength (-40°C)9kJ/m²ISO 180/1A
Poisson's Ratio0.48--
Physical Properties
ValueUnitsTest Method / Conditions
Melt Volume - Flow Rate5cm³/10minISO 1133
Load2.16kgISO 1133
Molding Shrinkage - Parallel1.7%ISO 294-4, 2577
Molding Shrinkage - Normal1.6%ISO 294-4, 2577
Temperature230°CISO 1133
Thermal Properties
ValueUnitsTest Method / Conditions
Melting Temperature (10°C/min)211°CISO 11357-1/-3
Temperature of Deflection Under Load (0.45 MPa)85°CISO 75-1/-2
Vicat Softening Temperature (50°C/h, 10N)198°CISO 306
Coefficient of Linear Thermal Expansion - Parallel200E-6/KISO 11359-1/-2
Coefficient of Linear Thermal Expansion - Normal200E-6/KISO 11359-1/-2
Specific Heat Capacity of Melt2070J/(kg K)-
Thermal Conductivity of Melt0.15W/(m K)-
Effective Thermal Diffusivity5.44E-8m²/s-
Mechanical Properties Elastomers
ValueUnitsTest Method / Conditions
Hardness (15s)60Shore DISO 7619-1
Hardnessmax. 63Shore DISO 7619-1
Yield Strain29%ISO 527-1/-2
Stress at 50% Strain21MPaISO 527-1/-2
Tear Strength - Normal200kN/mISO 34-1
Tear Strength - Parallel210kN/mISO 34-1
Nominal Strain at Break490%ISO 527-1/-2
Stress at Break45MPaISO 527-1/-2
Stress at 10% Strain18MPaISO 527-1/-2
Stress at 5% Strain12.5MPaISO 527-1/-2
Yield Stress22MPaISO 527-1/-2
Strain at Breakmin. 300%ISO 527-1/-2
Electrical Properties
ValueUnitsTest Method / Conditions
Dissipation Factor (100 Hz)110E-4IEC 62631-2-1
Dissipation Factor (1 MHz)110E-4IEC 62631-2-1
Surface Resistivity2.00E+14ohmIEC 62631-3-2
Electric Strength18kV/mmSTN EN 60243-2
Comparative Tracking Index - CTI600VUL 746
Volume Resistivity7E10ohm.mIEC 62631-3-1
Flammability
ValueUnitsTest Method / Conditions
FMVSS ClassB-ISO 3795 (FMVSS 302)
Burning Rate (1 mm, Thickness)max. 80mm/minISO 3795 (FMVSS 302)
Other Properties
ValueUnitsTest Method / Conditions
Humidity Absorption (2 mm)0.2%Sim. to ISO 62
Water Absorption (2 mm)0.7%Sim. to ISO 62
Density of Melt1070kg/m³-
Density1240kg/m³ISO 1183
Processing Information (Extrusion)
ValueUnitsTest Method / Conditions
Processing Moisture Content≤0.06%-
Melt Temperature Optimum235°C-
Drying Temperature100 - 120°C-
Processing Information (Injection Molding)
ValueUnitsTest Method / Conditions
Drying Temperature110°C-
Drying RecommendedYes--
Processing Moisture Content≤0.08%-
Drying Time (Dehumidified Dryer)2.0 - 4.0h-
Melt Temperature Optimum240°C-
Min. Melt Temperature230°C-
Max. Melt Temperature250°C-
Mold Temperature Optimum45°C-
Min. Mold Temperature40°C-
Max. Mold Temperature50°C-
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 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 HTR8241 Viscosity vs Shear Rate

Shear Stress vs Shear Rate

DuPont Hytrel HTR8241 Shear Stress vs Shear Rate

Specific Volume Temperature (pvT)

DuPont Hytrel HTR8241 Specific Volume Temperature (pvT)

Packaging & Availability

Regional Availability

Hytrel® HTR8241
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