Arnitel® PL381

Injection Molding

General Information

Arnitel® is a high-performance ThermoPlastic Copolyester (TPC) that offers you a unique combination of flexibility, high temperature resistance and strength - plus excellent processing characteristics.
In industries ranging from automotive to E&E, Arnitel® is increasingly being as a lighter, smarter, greener alternative to conventional rubbers – reducing environmental impact and ultimately, system costs.
The product is supported by an experienced and knowledgeable global team continuously working on new ideas and applications, as well as exploring new markets. By listening to your needs and understanding your process and products, we develop solutions that make a real difference.
Special features
Regulatory Affairs
Processing technology
Injection Molding

Rheological properties

Melt volume-flow rate
32
cm³/10min
Temperature
230
°C
Load
2.16
kg
Molding shrinkage (parallel)
1.55
%
Molding shrinkage (normal)
1.75
%

Mechanical properties

Charpy notched impact strength (+23°C)
N
kJ/m²
Charpy notched impact strength (-30°C)
N
kJ/m²
Izod notched impact strength (+23°C)
N
kJ/m²
Izod notched impact strength (-20°C)
N
kJ/m²
Izod notched impact strength (-30°C)
N
kJ/m²
Tensile notched impact strength (+23°C)
179
kJ/m²

Thermal properties

Melting temperature (10°C/min)
212
°C
Coeff. of linear therm. expansion (parallel)
1.5
E-4/°C
Coeff. of linear therm. expansion (normal)
1.5
E-4/°C

Electrical properties

Relative permittivity (100Hz)
4.7
-
Relative permittivity (1 MHz)
4.4
-
Dissipation factor (100 Hz)
310
E-4
Dissipation factor (1 MHz)
810
E-4
Volume resistivity
1E12
Ohm*m
Electric strength
20
kV/mm
Comparative tracking index
600
V

Other properties

Water absorption
7
%
Humidity absorption
0.4
%
Density
1160
kg/m³

Mechanical properties (TPE)

Tensile modulus
45
MPa
Stress at 5% strain
2.5
MPa
Stress at 10% strain
4
MPa
Stress at 50% strain
7
MPa
Stress at 100% strain
8.5
MPa
Stress at 300% strain
11.8
MPa
Stress at break
14
MPa
Strain at break
>300
%
Nominal strain at break
450
%
Tear strength
74
kN/m
Shore D Hardness (3s)
33
-

Applications

House Wrap

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

Soap dispensers

Industry
Consumer goods
Arnitel® is used in generic soap dispensers without the need for a metal spring.}