Arnitel® EM631

Extrusion Grade

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General Information

Arnitel® is a high-performance ThermoPlastic Copolyester (TPC) that offers you a unique combination of flexibility, high temperature resistance and strength - plus excellent processing characteristics.
In industries ranging from automotive to E&E, Arnitel® is increasingly being as a lighter, smarter, greener alternative to conventional rubbers – reducing environmental impact and ultimately, system costs.
The product is supported by an experienced and knowledgeable global team continuously working on new ideas and applications, as well as exploring new markets. By listening to your needs and understanding your process and products, we develop solutions that make a real difference.
Special features
General Document
Regulatory Affairs
  • Absence Declaration BNST2023-11-16
  • Absence Declaration Biocidal Products2023-11-16
  • Absence Declaration DMF (2009/251/EC: Dimethylfumarate)2023-11-16
  • Absence Declaration ELV (2000/53/EC: Heavy metals)2024-02-15
  • Absence Declaration EPA 20 High Priority Substances 20192023-11-16
  • Absence Declaration Food Allergens2023-11-16
  • Absence Declaration NMP (N-Methylpyrrolidone)2023-11-16
  • Absence Declaration Nano Materials2023-11-16
  • Absence Declaration Ozone Depleting Chemicals2023-11-16
  • Absence Declaration PAH (Polycyclic Aromatic Hydrocarbons)2023-11-16
  • Absence Declaration PBT chemicals under TSCA section 6(h)2023-11-16
  • Absence Declaration POPs (Persistent Organic Pollutants)2023-10-27
  • Absence Declaration Phthalates (2005/84/EC: DEHP, DBP, BBP,DINP,DIDP, DNOP)2023-11-16
  • Absence Declaration Red Phosphorus2023-11-16
  • Absence Declaration opBDE (2003/11/EC: Octa- / Pentabromodiphenylether)2023-11-16
  • CALIFORNIA PROPOSITION 65 (INDUSTRIAL USE)2024-01-02
  • Conflict minerals declaration (EICC, GeSI)2024-03-21
  • Packaging, Packaging Waste and CONEG declaration (94/62/EC)2021-12-06
  • REACH Registration Statement2024-03-27
  • REACH STATEMENT KOREA2023-11-16
  • REACH STATEMENT TURKYE2023-11-16
  • RoHS Statement (2011/65/EC: Heavy metals)2024-02-01
  • SVHC, REACH Annex XIV and –XVII Statement2024-03-27
  • Turkish customs legislation info letter (EK-8 form)2023-11-16
Processing technology
Extrusion, Injection Molding
Have a question? Contact us

Rheological properties

Melt volume-flow rate
6.5
cm³/10min
Temperature
230
°C
Load
2.16
kg

Mechanical properties

Yield stress
20
MPa
Yield strain
29
%
Nominal strain at break
>50
%
Charpy notched impact strength (+23°C)
N
kJ/m²
Charpy notched impact strength (-30°C)
12
kJ/m²

Thermal properties

Melting temperature (10°C/min)
212
°C
Vicat softening temperature (50°C/h 50N)
125
°C
Coeff. of linear therm. expansion (parallel)
1.85
E-4/°C
Coeff. of linear therm. expansion (normal)
1.85
E-4/°C

Electrical properties

Relative permittivity (100Hz)
3.8
-
Relative permittivity (1 MHz)
3.4
-
Dissipation factor (100 Hz)
110
E-4
Dissipation factor (1 MHz)
340
E-4
Volume resistivity
1E12
Ohm*m
Electric strength
22
kV/mm
Comparative tracking index
600
V

Other properties

Water absorption
0.6
%
Humidity absorption
0.2
%
Density
1240
kg/m³

Mechanical properties (TPE)

Tensile modulus
310
MPa
Stress at 10% strain
15.9
MPa
Stress at 100% strain
15.8
MPa
Stress at 300% strain
20
MPa
Stress at break
35
MPa
Strain at break
>300
%
Tear strength
160
kN/m
Shore D Hardness (3s)
61
-