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Arnitel® CM551

Technical Datasheet | Supplied by Envalior
Arnitel® CM551 by Envalior 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 Envalior
REQUEST A SAMPLE ORIGINAL DATASHEET CONTACT SUPPLIER
Product Type
  • Polyester TPE > COPE
  • Polyester [Polyester] > > Co-polyester
Physical Form
Pellets
Product Status
COMMERCIAL
Geographical Availability
Central and Eastern Europe, North America, South and Central America, Western Europe, Asia / Pacific, Africa, Middle East and Central Asia
Applications/ Recommended for
  • Wiring & Cables > Automotive
  • Electrical markets
  • Electronics / Computers
  • Extrusion
  • Injection molding - thermoplastics
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

Mechanical Properties

Value & Unit
Test Condition
Test Method
Nominal Strain
> 50 %
(At Break) 
ISO 527-1,-2
Compression Set
42 %
(At 70°C under constant strain) 
ISO 815
Hardness, Shore A
98
(At 15 s) 
ISO 868

Arnitel® CM551 Processing Guidelines

Extrusion Properties

Value & Unit
Test Condition
Test Method
Tip Temperature
240 °C
Melt Residence Time
< 3 min
Melt Temperature
230 - 240 °C

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