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Arnitel® PM381

Technical Datasheet | Supplied by Envalior
Arnitel® PM381 by Envalior is a high-performance, food contact quality, thermoplastic copolyester (TPC) grade. It is a lighter, smarter, greener alternative to conventional rubbers thus, reducing environmental impact. It is processed by film extrusion. It offers intrinsic breathability, excellent colorability, extrusion lower torque & better stability measured in tolerances. This grade possesses flexibility, strength, excellent processing characteristics and resistance to degradation during curing. It offers chemical resistance against household chemicals like cleaning agents, sunscreen lotion and automotive greases and oils. Arnitel® PM381 allows for reliable solutions, since it yields a breathable film that balances the application-specific gas mixture of O2 and CO2, and the moisture inside the package. It allows for the possibility to run at lower film thickness and at higher extrusion speed versus TPU, which allows for a lower cost system. It is used in breathable films for food packaging, house wrap, industrial cords & ropes, infusion membrane bags and mandrels as supportive tool. Also, used in plasters due to its easy stretchability with low forces, not putting tension on the wound area. It meets ISO 18064 for TPC-ET.
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Arnitel® PM381
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
  • Fibers/ Textiles/ Carpets > Ropes
  • Healthcare / Medical > Catheters
  • Packaging > Breathable Film
  • Extrusion
Labels/Agency Rating
ISO 18064 TPC-ET
Key Features
  • Chemical resistance, Good
  • Colorability, Good
  • Cost Effective
  • Flexibility, Good
  • Food Contact Acceptable
  • Grease Resistant
  • Oil Resistant
  • Processability, Good
  • Strength, Good

Arnitel® PM381 Properties

Mechanical Properties

Value & Unit
Test Condition
Test Method
Nominal Strain
155 %
(At Break) 
ISO 527-1,-2
Modulus of Elasticity
42 MPa
ISO 527-1,-2
Impact Strength, Notched Charpy
No Break
(At 23°C) 
ISO 179/1eA

Arnitel® PM381 Processing Guidelines

Extrusion Properties

Value & Unit
Test Condition
Test Method
Tip Temperature
225 °C
L/D Ratio
> 25
Head Temperature
235 °C

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