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Hytrel® G4774

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Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)
Processing Methods: Film Extrusion, Thermoforming, Casting, Injection Molding, Extrusion, Sheet, Plaques & Profiles Extrusion
End Uses: Wire & Cable Applications, Jacketing, Hoses, General Purpose, Cosmetic Packaging, Appliances, Pipes, Automotive Applications, Cable Jacketing, Film, Sporting Goods, Thermoforming Applications, Tubing, Electrical/Electronic Applications
Density: 1190.0 kg/m³
Strain at Break: 200.0 %
Flexural Modulus: 111.0 MPa
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Hytrel® G4774
DuPont
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Identification & Functionality

Hytrel® G4774 Features & Benefits

Applications & Uses

Properties

Physical Properties
ValueUnitsTest Method / Conditions
Melt Volume - Flow Rate11cm³/10minISO 1133
Load2.16kgISO 1133
Molding Shrinkage - Parallel1.5%ISO 294-4, 2577
Molding Shrinkage - Normal1.2%ISO 294-4
Temperature230°CISO 1133
Mechanical Properties
ValueUnitsTest Method / Conditions
Flexural Modulus111MPaISO 178
Shear Modulus39MPaISO 6721
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)No BreakkJ/m2ISO 179/1eA
Charpy Notched Impact Strength (-40°C)120PkJ/m²ISO 179/1eA
Tensile Notched Impact Strength (23°C)260kJ/m²ISO 8256/1
Izod Notched Impact Strength (23°C)No BreakkJ/m2ISO 180/1A
Izod Notched Impact Strength (-40°C)No BreakkJ/m²ISO 180/1A
Brittleness Temperature-66°CISO 974
Thermal Properties
ValueUnitsTest Method / Conditions
Melting Temperature (10°C/min)208°CISO 11357-1/-3
Glass Transition Temperature (10°C/min)-45°CISO 11357-1/-2
Temperature of Deflection Under Load (0.45 MPa)60°CISO 75-1/-2
Vicat Softening Temperature (50°C/h, 10N)165°CISO 306
Coefficient of Linear Thermal Expansion - Parallel220E-6/KISO 11359-1/-2
Coefficient of Linear Thermal Expansion - Normal190E-6/KISO 11359-1/-2
Specific Heat Capacity of Melt2100J/(kg K)-
Relative Temperature Index - Electrical (0.75 mm)50°CUL 746B
Relative Temperature Index - Electrical (1.5 mm)50°CUL 746B
Relative Temperature Index - Electrical (3 mm)50°CUL 746B
Relative Temperature Index - Impact (0.75 mm)50°CUL 746B
Relative Temperature Index - Impact (1.5 mm)50°CUL 746B
Relative Temperature Index - Impact (3 mm)50°CUL 746B
Relative Temperature Index - Strength (0.75 mm)50°CUL 746B
Relative Temperature Index - Strength (1.5 mm)50°CUL 746B
Relative Temperature Index - Strength (3 mm)50°CUL 746B
Effective Thermal Diffusivity5.44E-8m²/s-
Thermal Conductivity of Melt0.16W/(m K)-
Mechanical Properties Elastomers
ValueUnitsTest Method / Conditions
Max. Hardness - Shore D48-ISO 7619-1
Tear Strength - Parallel100kN/mISO 34-1
Tear Strength - Normal90kN/mISO 34-1
Abrasion Resistance33mm³ISO 4649
Nominal Strain at Break400%ISO 527-1/-2
Strain at Break200%ISO 527-1/-2
Stress at Break17MPaISO 527-1/-2
Stress at 50% Strain12MPaISO 527-1/-2
Stress at 10% Strain7MPaISO 527-1/-2
Tensile Modulus110MPaISO 527-1/-2
Hardness - Shore D (15s)43-ISO 7619-1
Electrical Properties
ValueUnitsTest Method / Conditions
Relative Permittivity (1 MHz)4.7-IEC 62631-2-1
Comparative Tracking Index - CTI (3.0 mm)600PLCUL 746A
Volume Resistivity1E12ohm.mIEC 62631-3-1
Flammability
ValueUnitsTest Method / Conditions
Burning Behaviour (1.5 mm, Nominal Thickness)HBclassIEC 60695-11-10
Burning Behaviour (Thickness h)HBclassIEC 60695-11-10
Glow Wire Flammability Index - GWFI (2 mm)700°CIEC 60695-2-12
Glow Wire Ignition Temperature (2 mm)675°C/mmIEC 60695-2-1/3
Glow Wire Temperature (No Flame, 2 mm)650°CIEC 60335-1
FMVSS ClassB-ISO 3795 (FMVSS 302)
Burning Rate (1 mm, Thickness)33mm/minISO 3795 (FMVSS 302)
Ul RecognitionYes-UL 94
Thickness Tested1.5mmIEC 60695-11-10
Other Properties
ValueUnitsTest Method / Conditions
Water Absorption - Immersion (24 h)2.5%Sim. to ISO 62
Density1190kg/m³ISO 1183
Density of Melt1010kg/m³-
Processing Information (Extrusion)
ValueUnitsTest Method / Conditions
Processing Moisture Content≤0.06%-
Melt Temperature Optimum230°C-
Processing Information (Injection Molding)
ValueUnitsTest Method / Conditions
Drying RecommendedYes--
Processing Moisture Content≤0.08%-
Drying Temperature100°C-
Melt Temperature Optimum240°C-
Drying Time (Dehumidified Dryer)2.0 - 3.0h-
Min. Melt Temperature235°C-
Max. Melt Temperature260°C-
Mold Temperature Optimum45°C-
Min. Mold Temperature45°C-
Max. Mold Temperature55°C-
VDA Properties
ValueUnitsTest Method / Conditions
Emission of Organic Compounds18µgC/gVDA 277
Odour5classVDA 270
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) Not Recommended
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) Not Recommended
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 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 G4774 Viscosity vs Shear Rate

Shear Stress vs Shear Rate

DuPont Hytrel G4774 Shear Stress vs Shear Rate

Dynamic Tensile Modulus vs Temperature

DuPont Hytrel G4774 Dynamic Tensile Modulus vs Temperature

Dynamic Shear Modulus vs Temperature

DuPont Hytrel G4774 Dynamic Shear Modulus vs Temperature

Stress vs Strain

DuPont Hytrel G4774 Stress vs Strain

Stress vs Strain (TPE)

DuPont Hytrel G4774 Stress vs Strain (TPE)

Secant Modulus vs Strain

DuPont Hytrel G4774 Secant Modulus vs Strain

Specific Volume Temperature (pvT)

DuPont Hytrel G4774 Specific Volume Temperature (pvT)

Packaging & Availability

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