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Arnitel® PM381

1 of 93 products in this brand
Arnitel® PM381 is a high-performance thermoplastic copolyester (TPC) renowned for its exceptional blend of flexibility, high temperature resistance, and strength, complemented by excellent processing characteristics. In industries ranging from automotive to E&E, Arnitel® PM381 is gaining prominence as a more sustainable and efficient alternative to traditional rubbers, leading to reduced environmental impact and lower system costs. This material can be processed using extrusion technology and meets the requirements for food contact quality, making it suitable for various applications.

Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)

Processing Methods: Extrusion, Film Extrusion

End Uses: Cooling Hoses, Film, House Wrap, Infusion Membrane Bags, Mandrels, Radiator

Density: 1160.0 - 1160.0 kg/m³

Strain at Break: 155.0 - 155.0 %

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Plastics & Elastomers Functions
Technologies

Features & Benefits

Materials Features

Applications & Uses

Plastics & Elastomers Processing Methods
House Wrap Application Data

Details

The roofing membrane uses the EM400+UV MB and EM402-L, whereas the house wrap uses PL381 and PM381.

Benefits

  • Arnitel® offers intrinsic breathability at the same level of TPU
  • Arnitel® allows for the possibility to run at lower film thickness and at higher extrusion speed versus TPU, which allows for a lower cost system
  • Arnitel® has a commercial track record for over 20 years
Breathable Films For Food Packaging Application Data

Details

Akulon® PA6 used in barrier films for food packaging.

Benefits

Arnitel® TPC 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
Mandrels as Supportive Tool Application Data

Details

Peroxide resistant Arnitel® mandrels for rubber and elastomer hose manufacturing

Benefits

  • Arnitel® (TPE) offers in extrusion lower torque and better stability measured in tolerances
  • Easier to extract the mandrels from the tubes than alternative materials
  • Cost reduction compared by increasing the number of re-use cycles (raw material and waste saving)
Infusion Membrane Bags Application Data

Details

The Arnitel® based films are used as the outside layer of the composite production structure (boats, aeronautics) referred to as vacuum bagging film or infusion membrane.

Benefits

  • Arnitel® TPC allow for reliable solutions due its excellent balance of properties including chemical resistance, flexibility and resistance to degradation during curing
  • Arnitel® TPC allow for cost effective solutions due its ease of processing and
Industrial Cords and Ropes Application Data

Details

Arnitel® offers the perfect anti-corrosion solution for steel cables used in off-shore industry, like drilling rigs and larger sea vessels. Arnitel® protects the steel from damage due to metal to metal contact and wear, leading to a much longer lifetime.

Benefits

  • Arnitel® has a proven track record in off shore cables
  • Arnitel® material is suitable for most extrusion techniques
  • Arnitel® offers excellent colorability

Properties

Mechanical Properties
ValueUnitsTest Method / Conditions
Charpy Notched Impact Strength (at +23°C)NkJ/m²ISO 179/1eA
Charpy Notched Impact Strength (at -30°C)NkJ/m²ISO 179/1eA
Izod Notched Impact Strength (at +23°C)NkJ/m²ISO 180/1A
Izod Notched Impact Strength (at -30°C)NkJ/m²ISO 180/1A
Thermal Properties
ValueUnitsTest Method / Conditions
Melting Temperature (10°C/min)212°CISO 11357-1/-3
Vicat Softening Temperature (50°C/h 10N)127°CISO 306
Vicat Softening Temperature (50°C/h 50N)120°CISO 306
Coefficient of Linear Thermal Expansion (parallel)1.5E-4/°CISO 11359-1/-2
Coefficient of Linear Thermal Expansion (normal)1.5E-4/°CISO 11359-1/-2
Electrical Properties
ValueUnitsTest Method / Conditions
Relative Permittivity (100Hz)4.7IEC 62631-2-1
Relative Permittivity (1 MHz)4.4IEC 62631-2-1
Dissipation Factor (100 Hz)310E-4IEC 62631-2-1
Dissipation Factor (1 MHz)810E-4IEC 62631-2-1
Volume Resistivity1E12Ohm*mIEC 62631-3-1
Electric Strength20kV/mmIEC 60243-1
Comparative Tracking Index600VIEC 60112
Other Properties
ValueUnitsTest Method / Conditions
Water Absorption7%Sim. to ISO 62
Humidity Absorption0.4%Sim. to ISO 62
Density1160kg/m³ISO 1183
Mechanical Properties (TPE)
ValueUnitsTest Method / Conditions
Tensile Modulus42MPaISO 527-1/-2
Stress at 5% strain2.2MPaISO 527-1/-2
Stress at 10% strain4MPaISO 527-1/-2
Stress at 50% strain8.3MPaISO 527-1/-2
Stress at 100% strain10.9MPaISO 527-1/-2
Stress at Break12.5MPaISO 527-1/-2
Nominal Strain at Break155%ISO 527-1/-2
Tear Strength52kN/mISO 34-1; Method B
Shore D Hardness (3s)32ISO 868
Rheological Properties
ValueUnitsTest Method / Conditions
Melt Volume-Flow Rate (at 230 / * °C, 2.16 / * kg)4.7cm³/10minISO 1133

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Chemical Resistance
Chemical TypeChemical NameResistance
OtherAcetic acid (10% by mass) at 23°Cresistant
KetonesAcetone at 23°Cresistant
OtherAmmonium hydroxide (10% by mass) at 23°Climited resistant, tests necessary to verify
OtherASTM 1 at 23°Cresistant
OtherASTM 3 at 23°Cresistant
OtherBrake fluids (DOT 3/4) at 23°Cnot resistant
OtherCalcium chloride (10% by mass) at 23°Climited resistant, tests necessary to verify
OtherChloroform at 23°Cnot resistant
EthersDiethyl ether at 23°Climited resistant, tests necessary to verify
AlcoholsEthanol at 23°Climited resistant, tests necessary to verify
OtherEthyl Acetate at 23°Climited resistant, tests necessary to verify
OtherFuel; Diesel at 85°Cresistant
OtherHydrochloric acid (10% by mass) at 23°Cresistant
OtherHydrogen peroxide (30% by mass) at 23°Climited resistant, tests necessary to verify
OtherNitric acid (10% by mass) at 23°Cresistant
OtherPhosphoric acid (10% by mass) at 23°Cresistant
OtherSodium hydroxide (10% by mass) at 23°Cresistant
OtherSulfuric acid (30% by mass) at 23°Cresistant
OtherTetrachloroethylene at 23°Climited resistant, tests necessary to verify
HydrocarbonsToluene at 23°Cresistant
OtherTransformer oil at 23°Cnot resistant
OtherTrichloroethylene at 23°Cnot resistant
OtherWater at 23°Cresistant
OtherZinc chloride (10% by mass) at 23°Cresistant
Shearstress-Shear Rate

DSM Engineering Materials Arnitel PM381 Shearstress-Shear Rate

Viscosity-Shear Rate

DSM Engineering Materials Arnitel PM381 Viscosity-Shear Rate

Packaging & Availability