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Plastics & Elastomers
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Plastics & Elastomers
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Arnitel® CM622

Technical Datasheet | Supplied by DSM
Arnitel® CM622 is a high-performance, heat stabilized, thermoplastic co-polyester (TPC) elastomer by DSM. It is suitable for processing by extrusion. Possesses flexibility, strength, excellent processing characteristics, excellent mechanical properties, excellent elasticity, outstanding heat aging properties 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® CM622 can withstand very high burst pressures and retains its properties better at higher temperatures than PA 12. Used in brake tubing, convoluted tubes, hydraulic hoses, wire and cable insulation in automotives and industrial equipment. Meets the severe ISO 6277 class D requirements for automotive wire and cable and 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
  • Wiring & Cables > Automotive
  • Automotive > Under the hood - Hoses
  • Extrusion
Labels/Agency Rating
ISO 6277 class D ISO 18064 TPC-ES
Key Features
  • Chemical resistance, Good
  • Elasticity, High
  • Fatigue Resistant
  • Flexibility, Good
  • Heat Aging Resistance, Good
  • Heat stabilized
  • Processability, Good
  • Strength, Good
  • UV Resistance, Good
  • Heat Resistance, High
  • Thermal Stability, Good
  • Fungus Resistance

Arnitel® CM622 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Melt Volume-Flow Rate (MVR)
9 cm³/10 min
(230°C/2.16 kg)
ISO 1133
1270 kg/m³
ISO 1183
Water Absorption
0.22 %
(at 23°C after 24hr)
ISO 62

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