Arnitel® EM400

Injection Molding, Film Extrusion, Food Contact Quality

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

Rheological properties

Melt volume-flow rate
33
cm³/10min
Temperature
230
°C
Load
2.16
kg
Molding shrinkage [parallel]
1.5
%
Molding shrinkage [normal]
1.5
%

Mechanical properties

Flexural modulus
50
MPa
Charpy impact strength (+23°C)
N
kJ/m²
Charpy impact strength (-30°C)
N
kJ/m²
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
Tensile notched impact strength (+23°C)
218
kJ/m²

Mechanical properties (die cutting)

Stress at break (normal)
19
MPa
Strain at break (normal)
960
%
Tear strength (normal)
104
kN/m
Tear strength (parallel)
106
kN/m

Thermal properties

Melting temperature (10°C/min)
195
°C
Glass transition temperature (10°C/min)
-78
°C
Coeff. of linear therm. expansion (parallel)
2.2
E-4/°C
Coeff. of linear therm. expansion (normal)
2.2
E-4/°C
Burning Behav. at 1.5 mm nom. thickn.
HB
class
Thickness tested
1.5
mm
UL recognition
Yes
-
Relative Temperature Index - electrical
50
°C
RTI electrical (Thickness (1) tested)
1.5
mm
Relative Temperature Index - with impact
50
°C
RTI with impact (Thickness (1) tested)
1.5
mm
Relative Temperature Index - without impact
50
°C
RTI without impact (Thickness (1) tested)
1.5
mm

Electrical properties

Relative permittivity (100Hz)
4.1
-
Relative permittivity (1 MHz)
4
-
Dissipation factor (100 Hz)
10
E-4
Dissipation factor (1 MHz)
170
E-4
Volume resistivity
1E13
Ohm*m
Electric strength
20
kV/mm
Comparative tracking index
600
V

Other properties

Water absorption
0.75
%
Humidity absorption
0.3
%
Density
1110
kg/m³
Apparent density
690
kg/m³

Rheological calculation properties

Density of melt
896
kg/m³
Thermal conductivity of melt
0.1
W/(m K)
Spec. heat capacity melt
1700
J/(kg K)
Eff. thermal diffusivity
6.56E-8
m²/s

Mechanical properties (TPE)

Tensile modulus
40
MPa
Stress at 5% strain
2.3
MPa
Stress at 10% strain
3.8
MPa
Stress at 50% strain
6.8
MPa
Stress at 100% strain
7.5
MPa
Stress at break
20
MPa
Strain at break
>300
%
Nominal strain at break
830
%
Shore D Hardness (3s)
33
-

Diagrams

Applications

Air Suspension Boots and Gaiters

Industry
Automotive
  • •} Arnitel® is a high-performance Themoplastic Copolyester (TPC) material. Its unique structure—hard and soft segments—delivers flexibility, high temperature resistance, strength, and excellent processing characteristics.
  • •} Arnitel® is a proven chemical-resistant material solution for automotive suspension components including boots, bellows and gaiters widely used by many automakers.
  • •} Arnitel® is a sustainable 100% recyclable material and bio-based grades are available to further reduce carbon footprint.
}

Arnitel spring in monitor arm

Industry
Consumer goods
Adjustable load bearing for monitor arm}

Chair Carriers

Industry
Consumer goods
Arnitel® TPC is a reliable solution for chair carriers due to its retention of flexibility even at temperatures down to -40°C (-40°F) or at elevated temperatures up to 100˚C (212°F). Akulon® PA6 is approved for chair bases and frames. Arnitel ECO is a bio-based alternative made from 50% renewable resources.}

Collaborative Robotics

Industry
Robotics
  • •} Metal replacement enables lightweighting of the robot arm
  • •} Move at higher safe speeds
  • •} Higher productivity collaborative human-robot workcells
  • •} Enable a 30-50% lower component part price compared to metal. ​
}

Conveyor Belts

Industry
Industrial equipment
  • •} Highly breathable
  • •} Bio-based alternative
  • •} High-temperature resistance
  • •} Excellent processing characteristics.
}

Cosmetic Dispensers

Industry
Consumer goods
Arnitel® is used in Cosmetic Dispensers and has a proven history of use in both food and non-food dispensers with retention of re-spring.}

Grips

Industry
Consumer goods
Grips are applicable to consumer appliances such as kitchenware, household utensils, hand tools, game controllers and much more. The material is usually overmolded on PC, PC/ABS or polyester.}

Industrial Cords and Ropes

Industry
Industrial equipment
Arnitel offers the perfect anti-corrosion solution for steel cables used in off-shore industry, like drilling rigs and larger sea vessels. Arnitel® protects the steel from damage due to metal to metal contact and wear, leading to a much longer lifetime.}

Phone case

Industry
Consumer goods
Product designers and manufacturers increasingly rely on thermoplastic elastomer (TPE) material solutions to produce and deliver highly durable and high-quality soft touch parts. Compared to the thermoplastic polyurethane (TPU) materials traditionally used for soft-touch manufacturing, TPEs offer better resistance to warpage and fatigue, as well as better protection against UV, chemical, and oil exposure.}

Railway Pads

Industry
Transportation
  • •} High abrasion resistance
  • •} Excellent load-bearing capacity
  • •} Fatigue and environmental resistance
  • •} High temperature resistance
}

Robotic grippers

Industry
Robotics
  • •} Proven track record of performance in many key industries.
  • •} Formulated for easy processing, strength, chemical resistance, and a soft touch finish.
  • •} Food contact and medical grades available.
}

Screw Drivers and Plyers

Industry
Consumer goods
  • •} Lighter, greener material than conventional rubber material
  • •} Extrusion and injection molding processes
  • •} Reduces environmental impact and system costs
  • •} Flexibility and strength
  • •} Soft touch and feel
}

Seat Suspension/Fabrics

Industry
Consumer goods
Arnitel® TPC is a reliable solution for seat suspension due to its retention of flexibility even at temperatures down to -40°C (-40°F) or at elevated temperatures up to 100˚C (212°F). Akulon® PA6 is approved for chair bases and frames. Arnitel ECO is a bio-based alternative made from 50% renewable resources.}

Soft touch in spatulas and kitchenware

Industry
Consumer goods
Arnitel® TPC is a reliable solution for spatulas and kitchenware because of its excellent adhesion with PBT in 2K injection molding, its superb scratch-resistance (which make kitchen tools look better even after years of intensive usage), its chemical-resistance (dishwasher-proof) and its approvals for direct food contact.}

Support Springs

Industry
Consumer goods
Low creep flexing solution for slats and mattresses, creating ultimate sleep comfort by changing durometer per section of your bed.}

Washing Machine Timer Knobs

Industry
Consumer goods
Material
  • •} High resistance to detergent solutions
  • •} Lighter, greener material than conventional rubbers
  • •} High temperature resistance
  • •} Reduces environmental impact and system costs
}

Wine Taps

Industry
Consumer goods
The Wine Tap is used in bag and boxed wine packaging for distributing wine.}