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Plastics & Elastomers
The material selection platform
Plastics & Elastomers
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Arnitel® PB420-B

Technical Datasheet | Supplied by DSM
Arnitel® PB420-B is a high-performance, heat stabilized thermoplastic co-polyester (TPC) grade by DSM. It is suitable for processing by blow 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® PB420-B can withstand very high burst pressures and retains its properties better at higher temperatures than PA12. Used in boots and bellows in automotive applications. 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
  • Automotive > Under the hood - CVJ Boots
  • Extrusion > Blow molding
Labels/Agency Rating
ISO 18064 TPC-ET
Key Features
  • Thermal Stability, Good
  • Chemical resistance, Good
  • Fungus Resistance
  • Strength, Good
  • Heat Resistance, High
  • Fatigue Resistant
  • Processability, Good
  • Heat Aging Resistance, Good
  • Heat stabilized
  • UV Resistance, Good
  • Elasticity, High
  • Flexibility, Good

Arnitel® PB420-B Properties

Mechanical Properties

Value & Unit
Test Condition
Test Method
Impact Strength, Notched Charpy
No Break kJ/m²
(At -30°C)
ISO 179/1eA
Impact Strength, Notched Izod
No Break kJ/m²
(At -30°C)
ISO 180/1A
Hardness, Shore D
ISO 868
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