Arnitel® EL550

Chemical Family: Polyesters

Arnitel® EL550 is a high-performance thermoplastic copolyester (TPC) known for its flexibility, exceptional temperature resistance, strength, and excellent processing characteristics. This material is a sustainable alternative to conventional rubbers, particularly in automotive and E&E industries, reducing environmental impact and system costs. Arnitel® EL550 can be processed through extrusion and injection molding techniques, meets food contact quality standards, and is suitable for film extrusion.

Product families

Elastomers — Thermoplastic Elastomers

Thermoplastic Polyester Elastomers (TPE-E)

Other characteristics

Brand: Arnitel
Density: 1200.0 - 1200.0 kg/m³
End Uses: Caps, Closures, Couplings, Insecticide Bottle Plug, Plyers, Pump Parts, Screw Drivers, Support Springs, Virtual Reality
Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)
Strain at Break: 640.0 - 640.0 %
Processing Methods: Extrusion, Injection Molding
Markets: Automotive & Transportation
Building & Construction
Consumer Goods
Industrial
Printing & Packaging
Flame Rating: UL 94 HB
Technology: Elastomers
OEM Standards: Callout
PSA
Volkswagen
Packaging Type: Bags
Boxes
Silos
Super Sacks
Labeling Claims: Food Contact Acceptable
Quality Standards: UL Yellow Card (E47960)
Material Features: Food Contact Acceptable
UL Flame Rated
OEM Specifications: CALLOUT ISO 14910 TPC ET MN 55-21-006
CALLOUT ISO 20029-TPC-ETM51-21-015
PSA Peugeot-Citroen 01994-16-00055
VW TL 52683 C
Certifications and Compliance: ISO 14001
OHSAS
REACH (Europe)
UL 94
Plastics and Elastomers End Uses: Caps
Closures
Couplings
Insecticide Bottle Plug
Plyers
Pump Parts
Screw Drivers
Support Springs
Plastics and Elastomers Functions: Resin
Virtual Reality Application Data: Arnitel® offers high elasticity, low creep and high chemical resistance; Arnitel offers excellent bonding to substrates like PC without adhesives; Arnitel has no skin sensitivity issues
Spider Couplings Application Data: Arnitel® offers high load bearing capabilities at high temperature; Arnitel ® offers excellent low temperature ductility; Arnitel® has good chemical resistance; Arnitel® has excellent fatigue properties
Insecticide Bottle Plug Application Data: Chemical resistance to kerosene
Soft material
Comfort in PA brush insertion

Technical data

Table 1 of 7

8 rows

Characteristic	Value	Unit	Method
Yield Stress	14	MPa	ISO 527-1/-2
Yield Strain	33	%	ISO 527-1/-2
Nominal Strain at Break	>50	%	ISO 527-1/-2
Charpy Notched Impact Strength (at +23°C)	N	kJ/m²	ISO 179/1eA
Charpy Notched Impact Strength (at -30°C)	25	kJ/m²	ISO 179/1eA
Izod Notched Impact Strength (at +23°C)	N	kJ/m²	ISO 180/1A
Izod Notched Impact Strength (at -20°C)	N	kJ/m²	ISO 180/1A
Tensile Notched Impact Strength (at +23°C)	216	kJ/m²	ISO 8256/1

Table 2 of 7

12 rows

Characteristic	Value	Unit	Method
Melting Temperature (10°C/min)	207	°C	ISO 11357-1/-3
Glass Transition Temperature (at 10°C/min)	-64	°C	ISO 11357-1/-2
Temperature of Deflection Under Load (0.45 MPa)	110	°C	ISO 75-1/-2
Vicat Softening Temperature (50°C/h 50N)	90	°C	ISO 306
Coefficient of Linear Thermal Expansion (parallel)	2	E-4/°C	ISO 11359-1/-2
Coefficient of Linear Thermal Expansion (normal)	2	E-4/°C	ISO 11359-1/-2
Burning Behaviour (at 1.5 mm Nominal Thickness)	UL HB	class	IEC 60695-11-10
Glow Wire Flammability Index (at thickness 1 / - mm)	750	°C	IEC 60695-2-12
Glow Wire Flammability Index (at thickness 2 / - mm)	750	°C	IEC 60695-2-12
Relative Temperature Index (Electrical, 1.5 mm)	50	°C	UL746B
Relative Temperature Index (with impact, 1.5 mm)	50	°C	UL746B
Relative Temperature Index (without impact, 1.5 mm)	50	°C	UL746B

Table 3 of 7

6 rows

Characteristic	Value	Unit	Method
Relative Permittivity (100Hz)	4.4	—	IEC 62631-2-1
Relative Permittivity (1 MHz)	4	—	IEC 62631-2-1
Dissipation Factor (1 MHz)	400	E-4	IEC 62631-2-1
Volume Resistivity	1E11	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	0.65	%	Sim. to ISO 62
Humidity Absorption	0.2	%	Sim. to ISO 62
Density	1200	kg/m³	ISO 1183

Table 5 of 7

11 rows

Characteristic	Value	Unit	Method
Tensile Modulus	170	MPa	ISO 527-1/-2
Stress at 5% strain	7.4	MPa	ISO 527-1/-2
Stress at 10% strain	11.1	MPa	ISO 527-1/-2
Stress at 50% strain	13.8	MPa	ISO 527-1/-2
Stress at 100% strain	13.7	MPa	ISO 527-1/-2
Stress at Break	32	MPa	ISO 527-1/-2
Strain at Break	>300	%	ISO 527-1/-2
Nominal Strain at Break	640	%	ISO 527-1/-2
Compression Set Under Constant Strain (at 70°C)	40	%	ISO 815
Tear Strength	150	kN/m	ISO 34-1; Method B
Shore D Hardness (3s)	53	—	ISO 868

Table 6 of 7