Hytrel® HTR8888 BK190

Alternative and trade names
Want to keep this datasheet? Save it now in your required format


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® HTR8888 BK190is designed for blow molding or processing techniques requiring high melt viscosity. It has nominal hardness of 55D, is pigmented black with fine particle size carbon black, and contains a general purpose stabilizer.Typical applications: Hollow thin wall parts requiring a tough polymer with excellent flexibility and temperature properties such as automotive boots.

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.

Ashby charts




Elastic modulus

23.0 °C

0.23 GPa

Show Material materials with Elastic modulus of 0.23 GPa

ISO 527-1/-2


23.0 °C

300 %

Show Material materials with Elongation of 300 %

min. | ISO 527-1/-2

Flexural modulus

23.0 °C

0.21 GPa

Show Material materials with Flexural modulus of 0.21 GPa

ISO 178

Hardness, Shore D

23.0 °C

55 [-]

Show Material materials with Hardness, Shore D of 55 [-]

max., ISO 7619-1

Impact strength, Charpy notched

-40.0 °C

26.6 kJ/m²

Show Material materials with Impact strength, Charpy notched of 26.6 kJ/m²

No Break @ 23°C, ISO 179/1eA

-6.0 °C

150 kJ/m²

Show Material materials with Impact strength, Charpy notched of 150 kJ/m²

No Break @ 23°C, ISO 179/1eA

Poisson's ratio

23.0 °C

0.48 [-]

Show Material materials with Poisson's ratio of 0.48 [-]

Tear strength

23.0 °C

160 kN/m

Show Material materials with Tear strength of 160 kN/m

ISO 34-1

Tear strength, transverse

23.0 °C

140 kN/m

Show Material materials with Tear strength, transverse of 140 kN/m

ISO 34-1

Tensile strength

23.0 °C

33.6 MPa

Show Material materials with Tensile strength of 33.6 MPa

ISO 527-1/-2



Melting point

203 °C

Show Material materials with Melting point of 203 °C

ISO 11357-1/-3 | 18°F/min

Vicat softening temperature

160 °C

Show Material materials with Vicat softening temperature of 160 °C

ISO 306 | 90°F, 2 lbf

Rheological Properties


Melt mass-flow rate

5.9 g/10min

Show Material materials with Melt mass-flow rate of 5.9 g/10min

ISO 1133 | 230°C/10kg


23.0 °C

1.2 %

Show Material materials with Shrinkage of 1.2 %

ISO 294-4, 2577

Shrinkage, transverse

23.0 °C

1.6 %

Show Material materials with Shrinkage, transverse of 1.6 %

ISO 294-4, 2577

Technological properties

Processing methods

Drying Recommended: yes, Drying Temperature: 100°C, Drying Time, Dehumidified Dryer: 2-4h, Processing Moisture Content: ≤0.08%, Melt Temperature Optimum: 240°C, Min. melt temperature: 230°C, Max. melt temperature: 250°C, Mold Temperature Optimum: 45°C, Min. mold temperature: 40°C, Max. mold temperature: 50°C