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Arnitel® UM551

Technical Datasheet | Supplied by Envalior
Arnitel® UM551 by Envalior is a high-performance, non-reinforced, non flame retardant, thermoplastic copolyester (TPC). It is a lighter, smarter, greener alternative to conventional rubbers thus, reducing environmental impact. It is processed by extrusion and injection molding. It possesses flexibility, strength, high creep resistance and excellent processing characteristics. It offers chemical resistance against household chemicals like cleaning agents, sunscreen lotion and automotive greases and oils. It offers a high continuous use temperature (>150°C). It is easily extrudable into low wall thickness. This grade allows for reliable solutions due to its high temperature resistance (class T3 and T4, Class D (150°C), Class E (175°C) >20 mm2 thick & thin wall). Also, allows for cost effective solutions (up to 50% lower system costs versus ETFE/FEP, 40% weight down versus XL PO at similar costs). Arnitel® UM551 should only be used in dry environments due to limited hydrolysis resistance. It is used in convoluted tubes, support springs and wire & cable insulation for automotive, auto electronics & electricals and wire & cables industries. It meets ISO 18064 for TPC-ES.
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Arnitel® UM551
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
  • Electronics / Computers
  • Households products/ Consumer Goods
  • Automotive
  • Wiring & Cables > Automotive
  • Injection molding - thermoplastics
  • Extrusion
Labels/Agency Rating
ISO 18064 TPC-ES
Complies fully with all RoHS requirements
Key Features
  • Chemical resistance, Good
  • Cost Effective
  • Creep Resistance, High
  • Flexibility, Good
  • Grease Resistant
  • Oil Resistant
  • Processability, Good
  • Unfilled

Arnitel® UM551 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Linear Mold Shrinkage
1.35 %
ISO 294-4
Linear Mold Shrinkage, Flow
1.45 %
ISO 294-4
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)
14 g/10 min
(At 230°C, 2.16 kg) 
ISO 1133

Arnitel® UM551 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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