Hytrel® 4068

Sold by DuPont

Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)

Processing Methods: Film Extrusion, Thermoforming, Casting, Injection Molding, Extrusion, Sheet, Plaques & Profiles Extrusion

End Uses: Hoses, Cosmetic Packaging, Appliances, Pipes, Automotive Applications, Corrugated Pipe, Sporting Goods, Thermoforming Applications, Tubing, Office Automation Equipment, Cast Films, Wire & Cable Applications

Density: 1110.0 kg/m³

Strain at Break: 300.0 %

Flexural Modulus: 45.0 MPa

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Documents

TypeDocument Name

Brochure

Technology Profile Laser Welding

Brochure

Other

Hot Runner Manual for Robust Molding of Semi-crystalline Resins

Other

Brochure

Hytrel® Thermoplastic Polyester Elastomer

Brochure

Hytrel® Polyester Elastomer

Brochure

Other

Hytrel® Design Guide

Other

Hytrel® Handling and Processing Precautions

Other

Hytrel® Thermoplastic Polyester Elastomer Product Reference Guide

Other

Brochure

Hydrolysis Resistance of Hytrel®

Brochure

Electrical/Electronic Thermoplastic Encapsulation

Brochure

DuPont Performance Polymers - Self Tapping Screws

Brochure

Other

Hytrel® Extrusion Manual

Other

Hytrel® all in one extrusion processing manual

Other

See All Documents

Knowde Enhanced TDS

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Identification & Functionality

Chemical Family

Polyesters

Polymer Name

Thermoplastic Copolyester Elastomer (TPC-ET)

Technologies

Elastomers

Product Families

Elastomers — Thermoplastic Elastomers,

Thermoplastic Polyester Elastomers (TPE-E),

Hytrel® 4068 Features & Benefits

Materials Features

Creep Resistant,

Light Stabilized,

Low Modulus,

Low Temperature Flexibility,

Medium Hardness

Applications & Uses

Markets

Agriculture & Feed,

Automotive & Transportation,

Building & Construction,

Consumer Goods,

Electrical & Electronics,

Healthcare & Pharma,

Industrial,

Printing & Packaging

Applications

Plastics & Elastomers End Uses

Appliances,

Automotive Applications,

Office Automation Equipment,

Pipes,

Sporting Goods,

Thermoforming Applications,

Tubing,

Wire & Cable Applications

Plastics & Elastomers Processing Methods

Sheet, Plaques & Profiles Extrusion,

Thermoforming

Properties

Mechanical Properties


	Value	Units	Test Method / Conditions
Flexural Modulus	45	MPa	ISO 178
Tensile Creep Modulus (1000 h)	21	MPa	ISO 899-1
Charpy Impact Strength (23°C)	No Break	kJ/m2	ISO 179/1eU
Charpy Impact Strength (-30°C)	No Break	kJ/m2	ISO 179/1eU
Charpy Notched Impact Strength (23°C)	No Break	kJ/m2	ISO 179/1eA
Charpy Notched Impact Strength (-30°C)	No Break	kJ/m2	ISO 179/1eA
Charpy Notched Impact Strength (-40°C)	No Break	kJ/m²	ISO 179/1eA
Tensile Notched Impact Strength (23°C)	145	kJ/m²	ISO 8256/1
Puncture - Maximum Force (-30°C)	2100	N	ISO 6603-2
Puncture Energy (-30°C)	30	J	ISO 6603-2

Physical Properties


	Value	Units	Test Method / Conditions
Melt Volume - Flow Rate	8.8	cm³/10min	ISO 1133
Melt Mass Flow Rate - MFR (190°C/2.16 kg)	8.5	g/10 min	ASTM D1238
Load	2.16	kg	ISO 1133
Molding Shrinkage - Parallel	1.0	%	ISO 294-4, 2577
Molding Shrinkage - Normal	0.9	%	ISO 294-4, 2577
Temperature	220	°C	ISO 1133

Thermal Properties


	Value	Units	Test Method / Conditions
Melting Temperature (10°C/min)	193	°C	ISO 11357-1/-3
Glass Transition Temperature (10°C/min)	-55	°C	ISO 11357-1/-2
Vicat Softening Temperature (50°C/h, 10N)	130	°C	ISO 306
Coefficient of Linear Thermal Expansion - Parallel	230	E-6/K	ISO 11359-1/-2
Coefficient of Linear Thermal Expansion - Normal	230	E-6/K	ISO 11359-1/-2
Specific Heat Capacity of Melt	2140	J/(kg K)	-
Effective Thermal Diffusivity	5.44E-8	m²/s	-
Thermal Conductivity of Melt	0.16	W/(m K)	-

Mechanical Properties Elastomers


	Value	Units	Test Method / Conditions
Max. Hardness - Shore D	37	-	ISO 7619-1
Stress at 5% Strain	2.4	MPa	ISO 527-1/-2
Abrasion Resistance	180	mm³	ISO 4649
Tear Strength - Normal	103	kN/m	ISO 34-1
Tear Strength - Parallel	100	kN/m	ISO 34-1
Nominal Strain at Break	800	%	ISO 527-1/-2
Stress at Break	29	MPa	ISO 527-1/-2
Stress at 100% Strain	7.5	MPa	ISO 527-1/-2
Stress at 50% Strain	6.7	MPa	ISO 527-1/-2
Stress at 10% Strain	3.2	MPa	ISO 527-1/-2
Tensile Modulus	45	MPa	ISO 527-1/-2
Hardness - Shore D (15s)	33	-	ISO 7619-1
Strain at Break	min. 300	%	ISO 527-1/-2

Electrical Properties


	Value	Units	Test Method / Conditions
Relative Permittivity (100 Hz)	4.8	-	IEC 62631-2-1
Relative Permittivity (1 MHz)	4.7	-	IEC 62631-2-1
Electric Strength	18	kV/mm	STN EN 60243-2
Comparative Tracking Index - CTI	600	V	UL 746

Flammability


	Value	Units	Test Method / Conditions
FMVSS Class	B	-	ISO 3795 (FMVSS 302)
Burning Rate (1 mm, Thickness)	max. 80	mm/min	ISO 3795 (FMVSS 302)

Other Properties


	Value	Units	Test Method / Conditions
Humidity Absorption (2 mm)	0.3	%	Sim. to ISO 62
Water Absorption (2 mm)	0.7	%	Sim. to ISO 62
Water Absorption - Immersion (24 h)	0.7	%	Sim. to ISO 62
Density of Melt	1030	kg/m³	-
Density	1110	kg/m³	ISO 1183

Processing Information (Extrusion)


	Value	Units	Test Method / Conditions
Melt Temperature Range	210 - 225	°C	-
Processing Moisture Content	≤0.06	%	-
Drying Time (Dehumidified Dryer)	2.0 - 3.0	h	-
Melt Temperature Optimum	215	°C	-
Drying Temperature	90 - 110	°C	-

Processing Information (Injection Molding)


	Value	Units	Test Method / Conditions
Drying Temperature	100	°C	-
Drying Recommended	Yes	-	-
Drying Time (Dehumidified Dryer)	2.0 - 3.0	h	-
Processing Moisture Content	≤0.08	%	-
Melt Temperature Optimum	225	°C	-
Min. Melt Temperature	220	°C	-
Max. Melt Temperature	250	°C	-
Mold Temperature Optimum	40	°C	-
Min. Mold Temperature	30	°C	-
Max. Mold Temperature	40	°C	-

VDA Properties


	Value	Units	Test Method / Conditions
Emission of Organic Compounds	10	µgC/g	VDA 277
Odour	4	class	VDA 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)	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)	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)	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