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Plastics & Elastomers
The material selection platform
Plastics & Elastomers
by SpecialChem
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Arnitel® EL250

Technical Datasheet | Supplied by DSM
Arnitel® EL250 by DSM is a high-performance thermoplastic co-polyester (TPC) grade. It is suitable for processing by injection molding. Possesses flexibility, strength, excellent processing characteristics, excellent mechanical properties, excellent elasticity, good resistance in heat aging tests and permeability to water vapor. Shows high temperature-, thermal-, UV-, fungus- and fatigue resistance. Offers chemical resistance against household chemicals like cleaning agents, sunscreen lotion and automotive greases and oils. Shows very low oxygen permeability combined with very high carbon dioxide permeability for usage in fruit and vegetable film packaging. Arnitel® EL250 can withstand very high burst pressures and retains its properties better at higher temperatures than PA 12. Used in appliances, desktops/PCs, furniture, household utensils and outdoor consumer cables. Meets ISO 18064 for TPC-ET.
Product Type
  • Polyester TPE > COPE
  • Polyester [Polyester] > > Co-polyester
Physical Form
Product Status
Geographical Availability
Central and Eastern Europe, Western Europe
Applications/ Recommended for
  • Households products/ Consumer Goods > Kitchen utensils
  • Furnitures
  • Electronics / Computers > Desktops
  • Injection molding - thermoplastics
Labels/Agency Rating
ISO 18064 TPC-ET
Key Features
  • Heat Resistance, High
  • Heat stabilized
  • Fatigue Resistant
  • Elasticity, High
  • UV Resistance, Good
  • Processability, Good
  • Flexibility, Good
  • Strength, Good
  • Thermal Stability, Good
  • Fungus Resistance
  • Heat Aging Resistance, Good
  • Impact modified
  • Chemical resistance, Good

Arnitel® EL250 Properties

Thermal Properties

Value & Unit
Test Condition
Test Method
Melting Point
180 °C
ISO 11357-1/3
CTE, Linear, Parallel to Flow
2.2E-4 1/°C
( )
ISO 11359-1/2
CTE, Linear
2.2E-4 1/°C
( )
ISO 11359-1/2

Arnitel® EL250 Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Melt Temperature
220 - 240 °C
Suggested Max Moisture
0.05 %
Center Temperature
200 - 220 °C

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