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Arnitel® UM551

Technical Datasheet | Supplied by DSM
Arnitel® UM551 by DSM 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 DSM
REQUEST A SAMPLE ORIGINAL DATASHEET CONTACT SUPPLIER
Product Type
  • Polyester TPE > COPE
  • Polyester [Polyester] > > Co-polyester
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
  • Automotive
  • Electronics / Computers
  • Households products/ Consumer Goods
  • Wiring & Cables > Automotive
  • Extrusion
  • Injection molding - thermoplastics
Labels/Agency Rating
ISO 18064 TPC-ES
Complies fully with all RoHS requirements

Arnitel® UM551 Properties

Physical Properties

Value & Unit
Test Condition
Test Method
Melt Volume Flow Rate (MVR)
13.8 cm3/10 min
(At 230°C, 2.16 kg)
ISO 1133
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
Linear Mold Shrinkage, Flow
1.45 %
( )
ISO 294-4

Arnitel® UM551 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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