Arnitel® CM550-S

Chemical Family: Polyesters

Arnitel® CM550-S, a high-performance ThermoPlastic Copolyester (TPC) distinguished by its exceptional blend of flexibility, high-temperature resistance, strength, and outstanding processing capabilities. In applications across automotive and E&E industries, it serves as a lighter, more intelligent, and environmentally friendly alternative to traditional rubber. Produced through extrusion technology, it boasts a hardness of 57 Shore D and is flame-retardant.

Product families

Applications

Automotive & Transportation — Automotive

Electrical & Electronic Systems

Electrical & Electronics — Devices & Assemblies

Automotive Electronics

Electrical & Electronics — Wire & Cable

Jacketing & Insulation

Product Families

Elastomers — Thermoplastic Elastomers

Thermoplastic Polyester Elastomers (TPE-E)

Other characteristics

Brand: Arnitel
Density: 1310.0 - 1310.0 kg/m³
End Uses: Cables, Wires
Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)
Strain at Break: 50.0 - 50.0 %, 590.0 - 590.0 %
Processing Methods: Extrusion
Markets: Automotive & Transportation
Electrical & Electronics
Technology: Elastomers
Packaging Type: Bags
Boxes
Silos
Super Sacks
Material Features: Flame Retardant
Chemical Resistance: Limited resistant, tests necessary to verify
Certifications and Compliance: ISO 14001
OHSAS
REACH (Europe)
Plastics and Elastomers End Uses: Cables
Wires
Plastics and Elastomers Functions: Resin
Plastics and Elastomers Processing Methods: Extrusion

Technical data

Table 1 of 7

6 rows

Characteristic	Value	Unit	Method
Charpy Impact Strength (at 23°C)	N	kJ/m²	ISO 179/1eU
Charpy Impact Strength (at -30°C)	N	kJ/m²	ISO 179/1eU
Charpy Notched Impact Strength (at -30°C)	5	kJ/m²	ISO 179/1eA
Charpy Notched Impact Strength (at 23°C)	N	kJ/m²	ISO 179/1eA
Izod Notched Impact Strength (-20°C)	N	kJ/m²	ISO 180/1A
Izod Notched Impact Strength (-30°C)	5.4	kJ/m²	ISO 180/1A

Table 2 of 7

2 rows

Characteristic	Value	Unit	Method
Melting Temperature (at 10°C/min)	205	°C	ISO 11357-1/-3
Vicat Softening Temperature (at 50°C/h 50N)	71	°C	ISO 306

Table 3 of 7

5 rows

Characteristic	Value	Unit	Method
Relative Permittivity (100Hz)	4.2	—	IEC 62631-2-1
Relative Permittivity (1 MHz)	3.5	—	IEC 62631-2-1
Dissipation Factor (100 Hz)	180	E-4	IEC 62631-2-1
Dissipation Factor (1 MHz)	495	E-4	IEC 62631-2-1
Volume Resistivity	min. 1E13	Ohm*m	IEC 62631-3-1

Table 4 of 7

3 rows

Characteristic	Value	Unit	Method
Humidity Absorption	0.11	%	Sim. to ISO 62
Density	1310	kg/m³	ISO 1183
Water Absorption in Water (at 23°C, after 24h)	0.26	%	ISO 62

Table 5 of 7

8 rows

Characteristic	Value	Unit	Method
Stress (at Break, Normal)	31	MPa	ISO 527-1/-2
Stress (at 5% Strain, Normal)	9.6	MPa	ISO 527-1/-2
Stress (at 10% Strain, Normal)	13	MPa	ISO 527-1/-2
Stress (at 50% Strain, Normal)	16	MPa	ISO 527-1/-2
Stress (at 100% Strain, Normal)	15	MPa	ISO 527-1/-2
Tear Strength (Normal)	145	kN/m	ISO 34-1; Method B
Tear Strength (Parallel)	160	kN/m	ISO 34-1; Method B
Strain (at Break, Normal)	590	%	ISO 527-1/-2

Table 6 of 7

11 rows

Characteristic	Value	Unit	Method
Tensile Modulus	200	MPa	ISO 527-1/-2
Compression Set Under Constant Strain (at 70°C)	52	%	ISO 815
Stress (at 5% Strain)	10	MPa	ISO 527-1/-2
Stress (at 10% Strain)	14	MPa	ISO 527-1/-2
Stress (at 50% Strain)	18	MPa	ISO 527-1/-2
Stress (at 100% Strain)	17	MPa	ISO 527-1/-2
Stress (at Break)	28	MPa	ISO 527-1/-2
Strain (at Break)	min. 300	%	ISO 527-1/-2
Nominal Strain (at Break)	400	%	ISO 527-1/-2
Hardness (3s)	57	Shore D	ISO 868
Hardness (15s)	57	Shore D	ISO 868

Table 7 of 7

1 row

Characteristic	Value	Unit	Method
Melt Volume Flow Rate (at 230°C, 2.16 kg)	17	cm³/10min	ISO 1133