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Arnitel® PL381

Chemical Family
Polyesters

Arnitel® PL381 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® PL381 is gaining prominence as a more sustainable and efficient alternative to traditional rubbers, resulting in reduced environmental impact and lower system costs. This material can be processed using injection molding technology, offering versatility for various applications.

Product families

Applications

Applications
  • Consumer Goods — Housewares
Building & Construction — Building Envelope & Roofing
  • Other Building Envelope & Roofing Applications
  • Waterproofing & Weatherproofing

Product Families

Elastomers — Thermoplastic Elastomers
  • Thermoplastic Polyester Elastomers (TPE-E)

Other characteristics

Brand
Arnitel
Density
1160.0 - 1160.0 kg/m³
End Uses
House Wrap, Kitchenware
Polymer Name
Thermoplastic Copolyester Elastomer (TPC-ET)
Strain at Break
300.0 - 300.0 %
Processing Methods
Injection Molding
Markets
  • Building & Construction
  • Consumer Goods
Technology
Elastomers
Packaging Type
  • Bags
  • Boxes
  • Silos
  • Super Sacks
Certifications and Compliance
  • ISO 14001
  • OHSAS
  • REACH (Europe)
House Wrap Application Data

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

Plastics and Elastomers End Uses
  • House Wrap
  • Kitchenware
Plastics and Elastomers Functions
Resin
Soap Dispensers Application Data

Arnitel® offers good elasticity and low hysteresis, resulting in good spring characteristics; No metal spring required in dispenser with Arnitel®; Arnitel® has good colorability with a stable white base color

Plastics and Elastomers Processing Methods
Injection Molding

Technical data

Table 1 of 7

6 rows
CharacteristicValueUnitMethod
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 -20°C)NkJ/m²ISO 180/1A
Izod Notched Impact Strength (at -30°C)NkJ/m²ISO 180/1A
Tensile Notched Impact Strength (at +23°C)179kJ/m²ISO 8256/1

Table 2 of 7

3 rows
CharacteristicValueUnitMethod
Melting Temperature (10°C/min)212°CISO 11357-1/-3
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

Table 3 of 7

7 rows
CharacteristicValueUnitMethod
Relative Permittivity (100Hz)4.7—IEC 62631-2-1
Relative Permittivity (1 MHz)4.4—IEC 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

Table 4 of 7

3 rows
CharacteristicValueUnitMethod
Water Absorption7%Sim. to ISO 62
Humidity Absorption0.4%Sim. to ISO 62
Density1160kg/m³ISO 1183

Table 5 of 7

11 rows
CharacteristicValueUnitMethod
Tensile Modulus45MPaISO 527-1/-2
Stress at 5% strain2.5MPaISO 527-1/-2
Stress at 10% strain4MPaISO 527-1/-2
Stress at 50% strain7MPaISO 527-1/-2
Stress at 100% strain8.5MPaISO 527-1/-2
Stress at 300% strain11.8MPaISO 527-1/-2
Stress at Break14MPaISO 527-1/-2
Strain at Break>300%ISO 527-1/-2
Nominal Strain at Break450%ISO 527-1/-2
Tear Strength74kN/mISO 34-1; Method B
Shore D Hardness (3s)33—ISO 868

Table 6 of 7

3 rows
CharacteristicValueUnitMethod
Melt Volume-Flow Rate (at 230 / * °C, 2.16 / * kg)32cm³/10minISO 1133
Molding Shrinkage (parallel)1.55%ISO 294-4
Molding Shrinkage (normal)1.75%ISO 294-4

Химическая стойкость

24 rows
CharacteristicValueUnit
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

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