Hytrel® HTR8808

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Description

Hytrel® by DuPont™ is a family of high performance thermoplastic elastomers that incorporates the most useful characteristics and material properties of elastomers and plastics, including excellent toughness, creep and impact resistance, resilience and fatigue strength. Hytrel® HTR8808 is a high-temperature thermoplastic polyester elastomer (TPEE) grade that shows outstanding balance of heat resistance and stiffness, high flexibility and pressure resistance. It is convenient for processing by blow moulding and is recommended for pressurized air ducts for turbo gasoline engines. HTR8808 is cyclically flexible in different directions and is highly durable, which makes an important ingredient in components in the automotive industry.

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.

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Properties

General

PropertyTemperatureValueComment

Density

23.0 °C

1.16 g/cm³

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ISO 1183

Water absorption

23.0 °C

0.02 - 0.04 %

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DIN EN ISO 62, 24h-96h

Mechanical

PropertyTemperatureValueComment

Compressive modulus

23.0 °C

2.8 MPa

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EN ISO 604

Compressive strength

23.0 °C

20 - 76 MPa

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EN ISO 604, 1%-5%

Elastic modulus

23.0 °C

0.27 GPa

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ISO 527-1, ISO 527-2

Elongation

23.0 °C

260 %

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ISO 527-1,ISO 527-2

Flexural modulus

23.0 °C

0.27 GPa

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ISO 178

Hardness, Ball Indentation

23.0 °C

115 MPa

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ISO 2039-1

Hardness, Shore D

23.0 °C

60 [-]

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max., ISO 7619-1

Impact strength, Charpy notched

-40.0 °C

7 kJ/m²

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ISO 179/1eA

-30.0 °C

12 kJ/m²

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ISO 179/1eA

23.0 °C

102 kJ/m²

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ISO 179/1eA

Impact strength, Charpy unnotched

23.0 °C

37 kJ/m²

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DIN EN ISO 179-1eU

Impact strength, Izod notched

-40.0 °C

7 kJ/m²

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ISO 180/1A

Poisson's ratio

23.0 °C

0.48 [-]

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Tear strength

23.0 °C

140 kN/m

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ISO 34-1

Tear strength, transverse

23.0 °C

130 kN/m

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ISO 34-1

Tensile strength

23.0 °C

33 MPa

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ISO 527-1,ISO 527-2

Thermal

PropertyTemperatureValueComment

Brittleness temperature

-65 °C

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ISO 974

Coefficient of thermal expansion

23.0 °C

2E-4 1/K

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ISO 11359-1/2, for -40 to 23°C

Coefficient of thermal expansion, transverse

23.0 °C

1.8E-4 1/K

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ISO 11359-1/2, for -40 to 23°C

Glass transition temperature

15 °C

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ISO 11357-1, ISO 11357-2, 18°F/min

Heat deflection temperature, 0.45 MPa

65 °C

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ISO 75-1/-2

Heat deflection temperature, 1.80 MPa

45 °C

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ISO 75-1/-2

Melting point

215 °C

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ISO 11357-1, ISO 11357-3, 18°F/min

Vicat softening temperature

60 - 195 °C

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ISO 306, respectively for 90°F/h, 11lbf and 90°F/h, 2lbf

Flammability

B ISO 3795 (FMVSS 302)

Rheological Properties

PropertyTemperatureValueComment

Melt mass-flow rate

4 g/10min

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ISO 1133, 240°C/10Kg

Shrinkage

23.0 °C

2.4 %

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ISO 294-4, ISO 2577

Shrinkage, transverse

23.0 °C

2.2 %

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ISO 294-4, ISO 2577

Technological properties

Property
Application areas

Cable insulation and jacketing, Chassis suspension Systems, Food Contact Materials, Innovative Furniture Design, Mechanical Gears, Medical Device Materials, Mobile Phone Housing & Components, Plastics For Sporting Goods, Polymers for Oil and Gas, Railway Technology for the Long Haul, Seals and Gaskets, Sustainability in Airbag Systems, Thermoplastic Tubing and Elastomeric Hose

Corrosion properties

In Acetic Acid, 5% loss by massa at 23°C

Processing methods

Blow Molding, Drying Temperature: 80°C, Drying Time: 6-8hr, Processing Moisture Content: <0.03%, Melt Temperature: 235-250°C (Optimum:245°C), Swell Ratio: 1.6, Molding Temperature: 40-60°C (Optimum: 45)