Arnitel® EL250

Chemical Family: Polyesters

Arnitel® EL250 is a high-performance thermoplastic copolyester (TPC) known for its combination of flexibility, high-temperature resistance, strength, and excellent processing properties. It is an innovative choice, serving as a lighter, more intelligent, and environmentally friendly substitute for traditional rubbers in industries such as automotive and E&E. This contributes to reduced environmental impact and system costs. Arnitel® EL250 is specifically designed for injection molding processes, making it efficient and versatile for manufacturing applications. Importantly, it meets food contact quality standards, ensuring its suitability for applications where food safety is essential.

Properties

Phone Case Application Data: Broad tactile properties with superior touch and feel; Broadest operating temperature range from -45°C to 150°C; High tear and abrasion resistance; High fatigue endurance after 255 compression cycles

Product families

Elastomers — Thermoplastic Elastomers

Thermoplastic Polyester Elastomers (TPE-E)

Other characteristics

Brand: Arnitel
Density: 1080.0 - 1080.0 kg/m³
End Uses: Arnitel Spring In Monitor Arm, Cable Jacketing, Cables, Electronic Accessory Cases, Flexible Grips, Kitchenware, Robotics, Support Springs, Wine Taps
Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)
Strain at Break: 300.0 - 300.0 %
Flexural Modulus: 20.0 - 20.0 MPa
Processing Methods: Injection Molding
Markets: Consumer Goods
Electrical & Electronics
Flame Rating: UL 94 HB
Technology: Elastomers
Packaging Type: Bags
Boxes
Silos
Super Sacks
Labeling Claims: Food Contact Acceptable
Halogen-free
Quality Standards: UL Yellow Card (E47960)
Additives Included: Flame Retardant
Material Features: Chemical Resistant
Easier Processing
Flame Retardant
Food Contact Acceptable
Good Flexibility
Good Strength
Soft Touch
UL Flame Rated
Grips Application Data: Arnitel® allows for excellent bonding in molding on miscellaneous in thin walls; Arnitel® solution is dish washer proof and has good grease resistance; Arnitel® solution offers good haptics
Wine Taps Application Data: Arnitel® has FDA approval for high alcohol contents and single use; Arnitel® offers good elasticity and low hysteresis, resulting in good spring characteristics; Arnitel® has good colorability with a stable white base color
Certifications and Compliance: ISO 14001
OHSAS
REACH (Europe)
UL 94

Technical data

Table 1 of 8

8 rows

Characteristic	Value	Unit	Method
Flexural Modulus	20	MPa	ISO 178
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 +23°C)	N	kJ/m²	ISO 179/1eA
Charpy Notched Impact Strength (at -30°C)	N	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)	N	kJ/m²	ISO 8256/1

Table 2 of 8

9 rows

Characteristic	Value	Unit	Method
Melting Temperature (10°C/min)	180	°C	ISO 11357-1/-3
Glass Transition Temperature (at 10°C/min)	-80	°C	ISO 11357-1/-2
Glass Transition Temperature from DMTA (tan d)	-74	°C	ASTM D5026/D7028
Coefficient of Linear Thermal Expansion (parallel)	2.2	E-4/°C	ISO 11359-1/-2
Coefficient of Linear Thermal Expansion (normal)	2.2	E-4/°C	ISO 11359-1/-2
Burning Behaviour (at 1.5 mm Nominal Thickness)	UL HB	class	IEC 60695-11-10
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 8

1 row

Characteristic	Value	Unit	Method
Volume Resistivity	5E12	Ohm*m	IEC 62631-3-1

Table 4 of 8

1 row

Characteristic	Value	Unit
Density of Melt	905	kg/m³

Table 5 of 8

3 rows

Characteristic	Value	Unit	Method
Water Absorption	0.8	%	Sim. to ISO 62
Density	1080	kg/m³	ISO 1183
Apparent Density	645	kg/m³	ISO 60

Table 6 of 8

10 rows

Characteristic	Value	Unit	Method
Tensile Modulus	25	MPa	ISO 527-1/-2
Stress at 5% strain	1.3	MPa	ISO 527-1/-2
Stress at 10% strain	2.1	MPa	ISO 527-1/-2
Stress at 50% strain	4.5	MPa	ISO 527-1/-2
Stress at 100% strain	5.1	MPa	ISO 527-1/-2
Stress at Break	15	MPa	ISO 527-1/-2
Strain at Break	>300	%	ISO 527-1/-2
Nominal Strain at Break	900	%	ISO 527-1/-2
Shore A Hardness (3s)	85	—	ISO 868
Shore D Hardness (3s)	25	—	ISO 868

Table 7 of 8