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Hytrel® HTR8685 BK022A

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Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)
Processing Methods: Blow Molding, Injection Molding, Extrusion
End Uses: Cosmetic Packaging, Automotive Applications, Constant Velocity Joint Boots, Containers, Bottles, Automotive Boots, Automotive Drivetrain, Automotive Bellows, Bellows
Density: 1150.0 kg/m³
Strain at Break: 300.0 %
Flexural Modulus: 100.0 MPa
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Identification & Functionality

Hytrel® HTR8685 BK022A Features & Benefits

Applications & Uses

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Flexural Modulus100MPaASTM D790
Charpy Notched Impact Strength (23°C)No BreakkJ/m2ISO 179/1eA
Charpy Notched Impact Strength (-40°C)120PkJ/m²ISO 179/1eA
Physical Properties
ValueUnitsTest Method / Conditions
Melt Mass Flow Rate - MFR (240°C/10 kg)0.7g/10minISO 1133
Molding Shrinkage - Parallel1.7%ISO 294-4, 2577
Molding Shrinkage - Normal1.6%ISO 294-4, 2577
Thermal Properties
ValueUnitsTest Method / Conditions
Melting Temperature (10°C/min)206°CISO 11357-1/-3
Glass Transition Temperature (10°C/min)-30°CISO 11357-1/-2
Temperature of Deflection Under Load (0.45 MPa)62°CISO 75-1/-2
Vicat Softening Temperature (50°C/h, 10N)167°CISO 306
Coefficient of Linear Thermal Expansion - Parallel210E-6/KISO 11359-1/-2
Coefficient of Linear Thermal Expansion - Normal200E-6/KISO 11359-1/-2
Mechanical Properties Elastomers
ValueUnitsTest Method / Conditions
Hardness (15s)41Shore DISO 7619-1
Hardnessmax. 44Shore DISO 7619-1
Stress at 50% Strain14MPaISO 527-1/-2
Stress at Break30MPaISO 527-1/-2
Tear Strength - Normal109kN/mISO 34-1
Tear Strength - Parallel112kN/mISO 34-1
Nominal Strain at Break320%ISO 527-1/-2
Stress at 100% Strain19MPaISO 527-1/-2
Stress at 10% Strain8.4MPaISO 527-1/-2
Tensile Modulus100MPaISO 527-1/-2
Strain at Breakmin. 300%ISO 527-1/-2
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
Density1150kg/m³ISO 1183
Processing Information (Injection Molding)
ValueUnitsTest Method / Conditions
Drying Temperature100°C-
Drying RecommendedYes--
Processing Moisture Content≤0.08%-
Drying Time (Dehumidified Dryer)3.0 - 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-
Processing Information (Blow Molding)
ValueUnitsTest Method / Conditions
Processing Moisture Content≤0.02%-
Drying Temperature≤110°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

Technical Details & Test Data

Viscosity vs Shear Rate

DuPont Hytrel HTR8685 BK022A Viscosity vs Shear Rate

Shear Stress vs Shear Rate

DuPont Hytrel HTR8685 BK022A Shear Stress vs Shear Rate

Dynamic Tensile Modulus vs Temperature

DuPont Hytrel HTR8685 BK022A Dynamic Tensile Modulus vs Temperature

Stress vs Strain (TPE)

DuPont Hytrel HTR8685 BK022A Stress vs Strain (TPE)

Packaging & Availability

Regional Availability

Hytrel® HTR8685 BK022A
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