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Hytrel® HTR8730 BK320

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Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)
Processing Methods: Blow Molding, Injection Molding
End Uses: Cosmetic Packaging, Automotive Air Management Line, Automotive Applications, Air Ducts, Containers, Bottles
Density: 1200.0 kg/m³
Strain at Break: 300.0 %
Flexural Modulus: 290.0 MPa
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Identification & Functionality

Hytrel® HTR8730 BK320 Features & Benefits

Applications & Uses

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Modulus270MPaISO 527
Flexural Modulus290MPaISO 178
Charpy Impact Strength (23°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
Poisson's Ratio0.48--
Physical Properties
ValueUnitsTest Method / Conditions
Melt Volume - Flow Rate5cm³/10minISO 1133
Melt Mass Flow Rate - MFR (230°C/2.16 kg)5g/10 minASTM D1238
Load10kgISO 1133
Molding Shrinkage - Parallel1.9%ISO 294-4, 2577
Molding Shrinkage - Normal2.1%ISO 294-4, 2577
Temperature230°CISO 1133
Thermal Properties
ValueUnitsTest Method / Conditions
Melting Temperature (10°C/min)212°CISO 11357-1/-3
Vicat Softening Temperature (50°C/h, 10N)187°CISO 306
Mechanical Properties Elastomers
ValueUnitsTest Method / Conditions
Hardness (15s)58Shore DISO 7619-1
Stress at Break41MPaISO 527-1/-2
Stress at 10% Strain15MPaISO 527-1/-2
Tear Strength - Parallel180kN/mISO 34-1
Nominal Strain at Break450%ISO 527-1/-2
Tear Strength - Normal150kN/mISO 34-1
Stress at 100% Strain24MPaISO 527-1/-2
Stress at 50% Strain22MPaISO 527-1/-2
Stress at 5% Strain10MPaISO 527-1/-2
Strain at Breakmin. 300%ISO 527-1/-2
Flammability
ValueUnitsTest Method / Conditions
Burning Behaviour (1.5 mm, Nominal Thickness)HBclassIEC 60695-11-10
FMVSS ClassB-ISO 3795 (FMVSS 302)
Burning Rate (1 mm, Thickness)max. 80mm/minISO 3795 (FMVSS 302)
Thickness Tested1.5mmIEC 60695-11-10
Other Properties
ValueUnitsTest Method / Conditions
Humidity Absorption (2 mm)0.2DS%Sim. to ISO 62
Water Absorption (2 mm)0.5DS%Sim. to ISO 62
Water Absorption - Immersion (24 h)0.3%Sim. to ISO 62
Density of Melt1030kg/m³-
Density1200kg/m³ISO 1183
Processing Information (Injection Molding)
ValueUnitsTest Method / Conditions
Drying Temperature110°C-
Drying RecommendedYes--
Drying Time (Dehumidified Dryer)3.0 - 4.0h-
Processing Moisture Content≤0.08%-
Melt Temperature Optimum240°C-
Min. Melt Temperature230°C-
Max. Melt Temperature250°C-
Mold Temperature Optimum45°C-
Min. Mold Temperature45°C-
Max. Mold Temperature55°C-
Processing Information (Blow Molding)
ValueUnitsTest Method / Conditions
Processing Moisture Content≤0.03%-
Melt Temperature Optimum230°C-
Drying Time (Dehumidified Dryer)4.0 - 6.0h-
Drying Temperature100 - 110°C-
Melt Temperature Range225 - 235°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 Automatic hypoid-gear oil Shell Donax TX (135°C) Not Recommended
Mineral oils Hydraulic oil Pentosin CHF 202 (125°C) Not Recommended
Mineral oils Insulating Oil (23°C) Probably Resistant
Mineral oils Motor oil OS206 304 Ref.Eng.Oil, ISP (135°C) Not Recommended
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) Probably Resistant
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) Not Recommended
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

Stress vs Strain (TPE)

DuPont Hytrel HTR8730 BK320 Stress vs Strain (TPE)

Tensile Modulus vs Temperature

DuPont Hytrel HTR8730 BK320 Tensile Modulus vs Temperature

LTHA Stress at Break (2mm)

DuPont Hytrel HTR8730 BK320 LTHA Stress at Break (2mm)

LTHA Strain at Break (2mm)

DuPont Hytrel HTR8730 BK320 LTHA Strain at Break (2mm)

Packaging & Availability

Regional Availability

Hytrel® HTR8730 BK320
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