Arnitel® EL591

1 of 93 products in this brand
Arnitel® EL591 is a high-performance thermoplastic copolyester (TPC) known for its exceptional blend of flexibility, high temperature resistance, and strength, complemented by excellent processing characteristics. In various industries, including automotive and E&E, it serves as a lighter, smarter, and more sustainable alternative to traditional rubbers, thereby reducing environmental impact and system costs. The recommended processing method for this product is injection molding.

Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)

Processing Methods: Injection Molding

End Uses: Body Plugs

Density: 1210.0 - 1210.0 kg/m³

Strain at Break: 300.0 - 300.0 %

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Technologies

Features & Benefits

Applications & Uses

Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Nominal Strain at Breakmin. 50%ISO 527-1/-2
Thermal Properties
ValueUnitsTest Method / Conditions
Melting Temperature (At 10°C/min)207°CISO 11357-1/-3
Electrical Properties
ValueUnitsTest Method / Conditions
Volume Resistivitymin. 1E13Ohm*mIEC 62631-3-1
Rheological Calculation Properties
ValueUnitsTest Method / Conditions
Density of Melt975kg/m³
Specific Heat Capacity Melt1900J/(kg K)
Other Properties
ValueUnitsTest Method / Conditions
Density1210kg/m³ISO 1183
Mechanical Properties (TPE)
ValueUnitsTest Method / Conditions
Tensile Modulus270MPaISO 527-1/-2
Stress at 10% Strain14MPaISO 527-1/-2
Stress at Break36MPaISO 527-1/-2
Strain at Breakmin. 300%ISO 527-1/-2
Shore D Hardness (At 3s)55ISO 868
Rheological Properties
ValueUnitsTest Method / Conditions
Melt Volume-Flow Rate (At 230°C, 2.16kg)27cm³/10minISO 1133

Regulatory & Compliance

Certifications & Compliance
OEM Standards

Technical Details & Test Data

Viscosity-Shear Rate

Arnitel® EL591 - Viscosity-Shear Rate

Shear Stress-Shear Rate

Arnitel® EL591 - Shear Stress-Shear Rate

Dynamic Shear Modulus (G)-Temperature

Arnitel® EL591 - Dynamic Shear Modulus (G)-Temperature

Chemical Resistance Data
Chemical Name Chemical Resistance
Acetic acid (10% by mass) at 23°C Resistant
Acetone at 23°C Resistant
ASTM 1 at 23°C Resistant
ASTM 3 at 23°C Resistant
Fuel; Diesel at 85°C Resistant
Hydrochloric acid (10% by mass) at 23°C Resistant
Nitric acid (10% by mass) at 23°C Resistant
Phosphoric acid (10% by mass) at 23°C Resistant
Sodium hydroxide (10% by mass) at 23°C Resistant
Sulfuric acid (30% by mass) at 23°C Resistant
Toluene at 23°C Resistant
Water at 23°C Resistant
Zinc chloride (10% by mass) at 23°C Resistant
Brake fluids (DOT 3/4) at 23°C Not resistant
Chloroform at 23°C Not resistant
Transformer oil at 23°C Not resistant
Trichloroethylene at 23°C Not resistant
Ammonium hydroxide (10% by mass) at 23°C

Limited resistant, tests necessary to verify

Calcium chloride (10% by mass) at 23°C

Limited resistant, tests necessary to verify

Diethyl ether at 23°C

Limited resistant, tests necessary to verify

Ethanol at 23°C

Limited resistant, tests necessary to verify

Ethyl Acetate at 23°C

Limited resistant, tests necessary to verify

Hydrogen peroxide (30% by mass) at 23°C

Limited resistant, tests necessary to verify

Tetrachloroethylene at 23°C

Limited resistant, tests necessary to verify