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Arnitel® EM631

1 of 93 products in this brand
Arnitel® EM631 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 industries ranging from automotive to E&E, it is gaining prominence as a more sustainable and efficient alternative to traditional rubbers, resulting in reduced environmental impact and lower system costs. This material can be processed using both extrusion and injection molding technologies.

Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)

Processing Methods: Extrusion, Injection Molding

End Uses: Belts & Belt Repair, Conveyor Parts

Density: 1240.0 - 1240.0 kg/m³

Strain at Break: 300.0 - 300.0 %

Technical Data Sheet
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Identification & Functionality

Chemical Family
Plastics & Elastomers Functions
Technologies

Applications & Uses

Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Yield Stress20MPaISO 527-1/-2
Yield Strain29%ISO 527-1/-2
Nominal Strain at Break>50%ISO 527-1/-2
Charpy Notched Impact Strength (at +23°C)NkJ/m²ISO 179/1eA
Charpy Notched Impact Strength (at -30°C)12kJ/m²ISO 179/1eA
Thermal Properties
ValueUnitsTest Method / Conditions
Melting Temperature (10°C/min)212°CISO 11357-1/-3
Vicat Softening Temperature (50°C/h 50N)125°CISO 306
Coefficient of Linear Thermal Expansion (parallel)1.85E-4/°CISO 11359-1/-2
Coefficient of Linear Thermal Expansion (normal)1.85E-4/°CISO 11359-1/-2
Electrical Properties
ValueUnitsTest Method / Conditions
Relative Permittivity (100Hz)3.8IEC 62631-2-1
Relative Permittivity (1 MHz)3.4IEC 62631-2-1
Dissipation Factor (100 Hz)110E-4IEC 62631-2-1
Dissipation Factor (1 MHz)340E-4IEC 62631-2-1
Volume Resistivity1E12Ohm*mIEC 62631-3-1
Electric Strength22kV/mmIEC 60243-1
Comparative Tracking Index600VIEC 60112
Other Properties
ValueUnitsTest Method / Conditions
Water Absorption0.6%Sim. to ISO 62
Humidity Absorption0.2%Sim. to ISO 62
Density1240kg/m³ISO 1183
Mechanical Properties (TPE)
ValueUnitsTest Method / Conditions
Tensile Modulus310MPaISO 527-1/-2
Stress at 10% strain15.9MPaISO 527-1/-2
Stress at 100% strain15.8MPaISO 527-1/-2
Stress at 300% strain20MPaISO 527-1/-2
Stress at Break35MPaISO 527-1/-2
Strain at Break>300%ISO 527-1/-2
Tear Strength160kN/mISO 34-1; Method B
Shore D Hardness (3s)61ISO 868
Rheological Properties
ValueUnitsTest Method / Conditions
Melt Volume-Flow Rate (at 230 / * °C, 2.16 / * kg)6.5cm³/10minISO 1133

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Chemical Resistance
Chemical TypeChemical NameResistance
OtherAcetic acid (10% by mass) at 23°Cresistant
KetonesAcetone at 23°Cresistant
OtherAmmonium hydroxide (10% by mass) at 23°Climited resistant, tests necessary to verify
OtherASTM 1 at 23°Cresistant
OtherASTM 3 at 23°Cresistant
OtherBrake fluids (DOT 3/4) at 23°Cnot resistant
OtherCalcium chloride (10% by mass) at 23°Climited resistant, tests necessary to verify
OtherChloroform at 23°Cnot resistant
EthersDiethyl ether at 23°Climited resistant, tests necessary to verify
AlcoholsEthanol at 23°Climited resistant, tests necessary to verify
OtherEthyl Acetate at 23°Climited resistant, tests necessary to verify
OtherFuel; Diesel at 85°Cresistant
OtherHydrochloric acid (10% by mass) at 23°Cresistant
OtherHydrogen peroxide (30% by mass) at 23°Climited resistant, tests necessary to verify
OtherNitric acid (10% by mass) at 23°Cresistant
OtherPhosphoric acid (10% by mass) at 23°Cresistant
OtherSodium hydroxide (10% by mass) at 23°Cresistant
OtherSulfuric acid (30% by mass) at 23°Cresistant
OtherTetrachloroethylene at 23°Climited resistant, tests necessary to verify
HydrocarbonsToluene at 23°Cresistant
OtherTransformer oil at 23°Cnot resistant
OtherTrichloroethylene at 23°Cnot resistant
OtherWater at 23°Cresistant
OtherZinc chloride (10% by mass) at 23°Cresistant

Packaging & Availability