Arnitel® PL581

Chemical Family: Polyesters

Arnitel® PL581 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 spanning from automotive to E&E, Arnitel® PL581 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 both extrusion and injection molding technologies, offering versatility for various applications.

Product families

Applications

Automotive & Transportation — Transportation

Rail & Mass Transit

Product Families

Elastomers — Thermoplastic Elastomers

Thermoplastic Polyester Elastomers (TPE-E)

Other characteristics

Brand: Arnitel
Density: 1240.0 - 1240.0 kg/m³
End Uses: Railway Pads
Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)
Strain at Break: 300.0 - 300.0 %
Processing Methods: Extrusion, Injection Molding
Markets: Automotive & Transportation
Technology: Elastomers
Packaging Type: Bags
Boxes
Silos
Super Sacks
Certifications and Compliance: ISO 14001
OHSAS
REACH (Europe)
Railway Pads Application Data: Arnitel® TPC allows for cost effective solutions since it yields thermoplastic processing advantages over rubber, resulting in faster cycle times in compraison with other TPE's. Arnitel® TPC allows for reliable solutions due to its high abrasion resistance, excellent load bearing capacity, great fatigue, and environmental resistance and due to a very consistent performance over temperature ranges from -55°C (-67°F) to +150°C (+300°F) and longest lifetime to failure as compared to any other rubber or class of TPE's used in this application
Plastics and Elastomers End Uses: Railway Pads
Plastics and Elastomers Functions: Resin
Plastics and Elastomers Processing Methods: Extrusion
Injection Molding

Technical data

Table 1 of 7

7 rows

Characteristic	Value	Unit	Method
Yield Stress	17	MPa	ISO 527-1/-2
Yield Strain	35	%	ISO 527-1/-2
Stress at Break	31	MPa	ISO 527-1/-2
Charpy Notched Impact Strength (at +23°C)	N	kJ/m²	ISO 179/1eA
Charpy Notched Impact Strength (at -30°C)	16	kJ/m²	ISO 179/1eA
Izod Notched Impact Strength (at +23°C)	N	kJ/m²	ISO 180/1A
Izod Notched Impact Strength (at -30°C)	15	kJ/m²	ISO 180/1A

Table 2 of 7

5 rows

Characteristic	Value	Unit	Method
Melting Temperature (10°C/min)	218	°C	ISO 11357-1/-3
Temperature of Deflection Under Load (0.45 MPa)	100	°C	ISO 75-1/-2
Vicat Softening Temperature (50°C/h 50N)	105	°C	ISO 306
Coefficient of Linear Thermal Expansion (parallel)	1.1	E-4/°C	ISO 11359-1/-2
Coefficient of Linear Thermal Expansion (normal)	1.1	E-4/°C	ISO 11359-1/-2

Table 3 of 7

5 rows

Characteristic	Value	Unit	Method
Relative Permittivity (1 MHz)	4	—	IEC 62631-2-1
Dissipation Factor (1 MHz)	400	E-4	IEC 62631-2-1
Volume Resistivity	>1E13	Ohm*m	IEC 62631-3-1
Electric Strength	21	kV/mm	IEC 60243-1
Comparative Tracking Index	600	V	IEC 60112

Table 4 of 7

3 rows

Characteristic	Value	Unit	Method
Water Absorption	2.5	%	Sim. to ISO 62
Humidity Absorption	0.4	%	Sim. to ISO 62
Density	1240	kg/m³	ISO 1183

Table 5 of 7

10 rows

Characteristic	Value	Unit	Method
Tensile Modulus	210	MPa	ISO 527-1/-2
Stress at 5% strain	9.2	MPa	ISO 527-1/-2
Stress at 10% strain	13.2	MPa	ISO 527-1/-2
Stress at 50% strain	16.5	MPa	ISO 527-1/-2
Stress at 100% strain	17	MPa	ISO 527-1/-2
Stress at Break	31	MPa	ISO 527-1/-2
Strain at Break	300	%	ISO 527-1/-2
Nominal Strain at Break	400	%	ISO 527-1/-2
Tear Strength	125	kN/m	ISO 34-1; Method B
Shore D Hardness (3s)	53	—	ISO 868

Table 6 of 7