Hytrel® 4068FG

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Description

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® 4068FG is a high performance thermoplastic polyester elastomer developed for applications in contact with food.FOOD CONTACTThis product is manufactured according to Good Manufacturing Practice (GMP) principles and generally accepted in food contact applications in Europe and the USA when meeting applicable use conditions. For details, individual compliance statements are available from your DuPont representative.

Ashby charts

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Properties

General

Density

ρ

1.11 g/cm³ at 23 °C

ISO 1183

Water absorption

cwater

0.7 % at 23 °C

Sim. to ISO 62 | 80mil

Mechanical

Elastic modulus

E

0.05 GPa at 23 °C

Show Thermoplastic Copolyester (TPC) materials with Elastic modulus of 0.05 GPa at 23 °C

ISO 527-1/-2

Elongation

A

800 % at 23 °C

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ISO 527-1/-2

Flexural modulus

Ebend

0.05 GPa at 23 °C

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ISO 178

Hardness, Shore D

HS D

37 [-] at 23 °C

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max., ISO 7619-1

Impact strength, Charpy notched Ivnot

No Break @ 23,-6°C, ISO 179/1eA

Impact strength, Charpy unnotched Iunnot

No Break @ 23,-6°C, ISO 179/1eA

Impact strength, Izod unnotched IIzod,unnot

No Break @ 23,-30,-40°C, ISO 179/1eU

Tear strength

Rtear

100 kN/m at 23 °C

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ISO 34-1

Tear strength, transverse

Rtear,trans

103 kN/m at 23 °C

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ISO 34-1

Tensile strength

Rm

29 MPa at 23 °C

Show Thermoplastic Copolyester (TPC) materials with Tensile strength of 29 MPa at 23 °C

ISO 527-1/-2

Thermal

Coefficient of thermal expansion

α

2.2999999999999998E-4 1/K at 23 °C

ISO 11359-1/-2

Coefficient of thermal expansion, transverse

αtrans

2.2999999999999998E-4 1/K at 23 °C

ISO 11359-1/-2

Flammability

FMVSS Class: B -, Burning rate, Thickness 1 mm: <80 mm/min

Glass transition temperature

Tg

-55 °C

ISO 11357-1/-2 | 18°F/min

Melting point

Tm

193 °C

ISO 11357-1/-3 | 18°F/min

Thermal diffusivity

αdiff

0 mm²/s at 23 °C

Vicat softening temperature

Tsoft

130 °C

ISO 306 | 90°F, 2 lbf

Electrical

Comparative tracking index

CTI

600 V at 23 °C

IEC 60112

Dielectric constant, 100Hz

εr,100Hz

4.8 [-] at 23 °C

IEC 62631-2-1

Dielectric constant, 1MHz

εr,1MHz

4.7 [-] at 23 °C

IEC 62631-2-1

Dielectric strength

EDS

18 kV/mm at 23 °C

IEC 60243-1

Rheological Properties

Melt mass-flow rate

MFR

8.5 g/10min

ISO 1133 | 220°C/2.16kg

Melt volume-flow rate

MVR

8.8 cm³/10min

ISO 1133

Shrinkage

cshrink

1 % at 23 °C

ISO 294-4, 2577

Shrinkage, transverse

cshrink, trans

0.9 % at 23 °C

ISO 294-4, 2577

Technological properties

Modifications

Processing methods

Drying Recommended: yes, Drying Temperature: 100°C, Drying Time, Dehumidified Dryer: 2-3h, 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

This material data has been provided by Matmatch.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.