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Plastics & Elastomers
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Plastics & Elastomers
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Arnitel® UM552

Technical Datasheet | Supplied by DSM
Arnitel® UM552 by DSM is a high-performance thermoplastic co-polyester (TPC) grade. It is an impact modified, heat-, light- and UV stabilized grade. It is suitable for processing by injection molding and film-, profile- and sheet extrusion. 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. Arnitel® UM552 can withstand very high burst pressures and retains its properties better at higher temperatures than PA12. Used in auto electronics & electricals applications. Meets ISO 18064 for TPC-ES.
Product Type
  • Polyester TPE > COPE
  • Polyester [Polyester] > > Co-polyester
Physical Form
Product Status
Geographical Availability
Central and Eastern Europe, Western Europe
Applications/ Recommended for
  • Automotive
  • Injection molding - thermoplastics
  • Extrusion > Sheet & Plaques (standard)
  • Extrusion > Profiles
Labels/Agency Rating
ISO 18064 TPC-ES
Key Features
  • Fatigue Resistant
  • Chemical resistance, Good
  • Thermal Stability, Good
  • UV-Stabilized
  • Heat Resistance, High
  • UV Resistance, Good
  • Fungus Resistance
  • Heat Aging Resistance, Good
  • Heat stabilized
  • Processability, Good
  • Elasticity, High
  • Light Stabilized
  • Flexibility, Good
  • Strength, Good
  • Impact modified

Arnitel® UM552 Properties

Mechanical Properties

Value & Unit
Test Condition
Test Method
Impact Strength, Notched Charpy
6 kJ/m²
(At -30°C)
ISO 179/1eA
Hardness, Shore D
ISO 868
Impact Strength, Notched Charpy
No Break kJ/m²
(At 23°C)
ISO 179/1eA

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