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Arnitel® CM551

Technical Datasheet | Supplied by DSM
Arnitel® CM551 by DSM is a high-performance, heat-resistant, thermoplastic copolyester (TPC) elastomer. It is processed by extrusion and injection molding. It is a lighter, smarter, greener alternative to conventional rubbers thus, reducing environmental impact. This grade possesses flexibility, strength, excellent processing characteristics. It offers chemical resistance against household chemicals like cleaning agents, sunscreen lotion and automotive greases and oils. Arnitel® CM551 allows for reliable solutions due its high temperature resistance (class T3 and T4, Class D (150°C) enabling thin and ultra thin wall designs, Class E (175°C) >20 mm2 thick and thin wall). It provides cost effective and sustainable solutions (up to 50% lower system costs versus ETFE/FEP, 40% weight down versus XL PO at similar costs. It is used in wire and cable insulation in automotive.
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Arnitel® CM551
Technical Datasheet | Supplied by DSM
REQUEST A SAMPLE ORIGINAL DATASHEET CONTACT SUPPLIER
Product Type
Polyester TPE > COPE
Physical Form
Pellets
Product Status
COMMERCIAL
Geographical Availability
Africa, Asia / Pacific, Central and Eastern Europe, Middle East and Central Asia, North America, South and Central America, Western Europe
Applications/ Recommended for
  • Electrical markets
  • Electronics / Computers
  • Wiring & Cables > Automotive
  • Injection molding - thermoplastics
  • Extrusion
Labels/Agency Rating
ISO 6277 class D
Complies fully with all RoHS requirements
Key Features
  • Chemical resistance, Good
  • Flexibility, Good
  • Heat Resistance, High
  • Mechanical Properties, Good
  • Processability, Good
  • Strength, Good

Arnitel® CM551 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Melt Volume Flow Rate (MVR)
8 cm3/10 min
(At 230°C, 2.16 kg)
ISO 1133
Water Absorption
0.27 %
(At 23°C after 24 hr)
ISO 62
Humidity Absorption
0.11 %
( )
ISO 62

Arnitel® CM551 Processing Guidelines

Injection Molding Properties

Value & Unit
Test Condition
Test Method
Moisture Content
< 0.05 %
Dew Point
-30 - -40 °C
Drying Time
3 - 4 hr

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