View list of
  • All DuPont grades
  • All TPC grades
  • All grades beginning with H

CAMPUS® datasheet | Hytrel® 4068


This datasheet of Hytrel® 4068 from DuPont Engineering Polymers is provided by the international plastics database CAMPUS.

CAMPUS is organized by a group of leading international resin producers, who have agreed to test their material according to uniform conditions, based on ISO standards (ISO 10350, ISO 11403), in order to offer comparable data to the market.

This datasheet includes:

  Hytrel® 4068 | TPC | DuPont Engineering Polymers
Product Texts
Common features of Hytrel® thermoplastic polyester elastomer include mechanical and physical properties such as exceptional toughness and resilience, high resistance to creep, impact and flex fatigue, flexibility at low temperatures and good retention of properties at elevated temperatures.

In addition, it resists many industrial chemicals, oils and solvents. Special grades include heat stabilised, flame retardant, food contact compliant, blow molding and extrusion grades. Concentrates offered include black pigments, UV protection additives, heat stabilisers, and flame retardants.

Hytrel® thermoplastic polyester elastomer is plasticiser free.

The good melt stability of Hytrel® thermoplastic polyester elastomer normally enables the recycling of properly handled production waste. If recycling is not possible, DuPont recommends, as the preferred option, incineration with energy recovery (-24 kJ/g of base polymer) in appropriately equipped installations.

For disposal, local regulations have to be observed.

Hytrel® thermoplastic polyester elastomer typically is used in demanding applications in the automotive, fluid power, electrical/electronic, consumer goods, appliance and power tool, sporting goods, furniture, industrial and off-road transportation/equipment industry.

______________________________________________________


Hytrel® 4068 is a 40 nominal Shore D, color stable and plasticizer free high performance resin for injection molding and extrusion. It has outstanding impact resistance at low temperature.

Rheological propertiesValueUnitTest Standard
Melt volume-flow rate (MVR) 9 cm³/10min ISO 1133
Temperature 220 °C ISO 1133
Load 2.16 kg ISO 1133
Molding shrinkage (parallel) 1.3 % ISO 294-4, 2577
Molding shrinkage (normal) 1.3 % ISO 294-4, 2577
Mechanical propertiesValueUnitTest Standard
Tensile Modulus 35 MPa ISO 527-1/-2
Stress at 50% strain 5.4 MPa ISO 527-1/-2
Stress at 10% elongation 3.5 MPa ISO 527-1/-2
Stress at 100% elongation 7.5 MPa ISO 527-1/-2
Stress at break TPE 22 MPa ISO 527-1/-2
Strain at break >50 % ISO 527-1/-2
Strain at break TPE >300 % ISO 527-1/-2
Tensile creep modulus (1h) 28 MPa ISO 899-1
Tensile creep modulus (1000h) 21 MPa ISO 899-1
Charpy impact strength (+23°C) N kJ/m² ISO 179/1eU
Charpy impact strength (-30°C) N kJ/m² ISO 179/1eU
Charpy notched impact strength (+23°C) N kJ/m² ISO 179/1eA
Charpy notched impact strength (-30°C) N kJ/m² ISO 179/1eA
Tensile notched impact strength (+23°C) 145 kJ/m² ISO 8256/1
Tear strength 95 kN/m ISO 34-1
Abrasion resistance 180 mm³ ISO 4649
Shore D hardness (15s) 33 - ISO 868
Thermal propertiesValueUnitTest Standard
Melting temperature (10°C/min) 194 °C ISO 11357-1/-3
Glass transition temperature (10°C/min) -55 °C ISO 11357-1/-2
Coeff. of linear therm. expansion (parallel) 230 E-6/K ISO 11359-1/-2
Coeff. of linear therm. expansion (normal) 230 E-6/K ISO 11359-1/-2
Electrical propertiesValueUnitTest Standard
Relative permittivity (100Hz) 4.8 - IEC 60250
Relative permittivity (1MHz) 4.7 - IEC 60250
Dissipation factor (100Hz) 50 E-4 IEC 60250
Dissipation factor (1MHz) 110 E-4 IEC 60250
Volume resistivity >1E13 Ohm*m IEC 60093
Surface resistivity >1E15 Ohm IEC 60093
Electric strength 26 kV/mm IEC 60243-1
Comparative tracking index 600 - IEC 60112
Other propertiesValueUnitTest Standard
Water absorption 0.7 % Sim. to ISO 62
Humidity absorption 0.3 % Sim. to ISO 62
Density 1100 kg/m³ ISO 1183
Rheological calculation propertiesValueUnitTest Standard
Density of melt 1030 kg/m³ -
Thermal conductivity of melt 0.16 W/(m K) -
Spec. heat capacity melt 2140 J/(kg K) -
Eff. thermal diffusivity 5.44E-8 m²/s -
Ejection temperature 85 °C -
Diagrams
Viscosity-shear rate , Hytrel® 4068, TPC, DuPont
Shearstress-shear rate , Hytrel® 4068, TPC, DuPont
Stress-strain (isochronous) 23°C, Hytrel® 4068, TPC, DuPont
Creep modulus-time 23°C, Hytrel® 4068, TPC, DuPont
Stress-strain (isochronous) 40°C, Hytrel® 4068, TPC, DuPont
Creep modulus-time 40°C, Hytrel® 4068, TPC, DuPont
Specific volume-temperature (pvT) , Hytrel® 4068, TPC, DuPont
Stress-Strain (TPE) , Hytrel® 4068, TPC, DuPont
LTHA-Strain at Break 2mm, Hytrel® 4068, TPC, DuPont
Characteristics
Processing
Injection Molding, Film Extrusion, Profile Extrusion, Sheet Extrusion, Other Extrusion, Casting
Delivery form
Pellets
Special Characteristics
Platable
Regional Availability
Other text information
Injection molding

PREPROCESSING


Drying Recommended = Yes
Drying Temperature = 100°C
Drying Time, Dehumidified Dryer = 2-3 h
Processing Moisture Content = <0.08 %


PROCESSING


Melt Temperature Optimum = 230°C
Mold Temperature Optimum = 40°C
Mold Temperature Range = 30-40°C


Moulding guide

Profile extrusion

PREPROCESSING


Drying Temperature = 100°C
Drying Time, Dehumidified Dryer = 2-3 h
Processing Moisture Content = <0.08 %


PROCESSING


Melt Temperature Optimum = 215°C


Extrusion guide

Chemical Media Resistance
Acids
Acetic Acid (5% by mass) (23°C)
Citric Acid solution (10% by mass) (23°C)
Lactic Acid (10% by mass) (23°C)
Hydrochloric Acid (36% by mass) (23°C)
Nitric Acid (40% by mass) (23°C)
Sulfuric Acid (38% by mass) (23°C)
Sulfuric Acid (5% by mass) (23°C)
Chromic Acid solution (40% by mass) (23°C)
Bases
Sodium Hydroxide solution (35% by mass) (23°C)
Sodium Hydroxide solution (1% by mass) (23°C)
Ammonium Hydroxide solution (10% by mass) (23°C)
Alcohols
Isopropyl alcohol (23°C)
Methanol (23°C)
Ethanol (23°C)
Hydrocarbons
n-Hexane (23°C)
Toluene (23°C)
iso-Octane (23°C)
Ketones
Acetone (23°C)
Ethers
Diethyl ether (23°C)
Mineral oils
SAE 10W40 multigrade motor oil (23°C)
SAE 10W40 multigrade motor oil (130°C)
SAE 80/90 hypoid-gear oil (130°C)
Insulating Oil (23°C)
Standard Fuels
ISO 1817 Liquid 1 (60°C)
ISO 1817 Liquid 2 (60°C)
ISO 1817 Liquid 3 (60°C)
ISO 1817 Liquid 4 (60°C)
Standard fuel without alcohol (pref. ISO 1817 Liquid C) (23°C)
Standard fuel with alcohol (pref. ISO 1817 Liquid 4) (23°C)
Diesel fuel (pref. ISO 1817 Liquid F) (23°C)
Diesel fuel (pref. ISO 1817 Liquid F) (90°C)
Diesel fuel (pref. ISO 1817 Liquid F) (>90°C)
Salt solutions
Sodium Chloride solution (10% by mass) (23°C)
Sodium Hypochlorite solution (10% by mass) (23°C)
Sodium Carbonate solution (20% by mass) (23°C)
Sodium Carbonate solution (2% by mass) (23°C)
Zinc Chloride solution (50% by mass) (23°C)
Other
Ethyl Acetate (23°C)
Hydrogen peroxide (23°C)
DOT No. 4 Brake fluid (130°C)
Ethylene Glycol (50% by mass) in water (108°C)
1% nonylphenoxy-polyethyleneoxy ethanol in water (23°C)
50% Oleic acid + 50% Olive Oil (23°C)
Water (23°C)
Deionized water (90°C)
Phenol solution (5% by mass) (23°C)
Disclaimer

E.I. du Pont de Nemours and Company is pleased to provide information about its products with the CAMPUS electronic database.

The information provided is gratis and DuPont assumes no obligation or liability for any advice furnished or for any results obtained with respect to this information.

All such advice is given and accepted at the risk of the buyer. The disclosure of information herein is not an express or implied license to operate under any patent of DuPont or others.

DuPont warrants that the use or sale of any material which is described herein and is offered for sale by DuPont does not infringe any patent covering the material itself, but does not warrant against infringement by reason of the use thereof in combination with other materials or the operation of any process.

Unless otherwise noted, the property values are for natural color (NC010) resins only. Colorants or other additives may alter some or all of the properties.
The data listed herein fall within the normal range of product properties and they should not be used to establish specification limits nor used alone as the basis of design.

Material Safety Data Sheets (SDSs) can be obtained from local sales offices.

Products listed herein should not be used in medical applications involving permanent implantation in the human body or contact with internal body fluids or tissues unless the material has been provided from DuPont under a written contract that is consistent with DuPont policy regarding medical applications and expressly acknowledges the contemplated use.

For further information, please contact your DuPont representative.

You may also request a copy of DuPont policy regarding medical applications H-50103-2 and DuPont caution regarding medical applications H-50102-2.

Products listed herein may from time to time be modified or removed.
Please call your local sales office to determine current availability.


The CAMPUS internet database is hosted by M-Base Engineering + Software GmbH. M-Base Engineering + Software GmbH assumes no liability for the system to be free of errors. Any decision about the application of materials must be double checked with the producer of this material.

CAMPUS® is a Registered trademark of CWFG mbH, Frankfurt/Main, 1991