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Arnitel® EL250 B-MB

Chemical Family
Polyesters

Arnitel® EL250 B-MB is a high-performance ThermoPlastic Copolyester (TPC) known for its exceptional blend of flexibility, high-temperature resistance, strength, and outstanding processing properties. Across industries spanning automotive to E&E, it is selected as a lighter, more intelligent, and environmentally friendly substitute for traditional rubbers, effectively reducing environmental impact and system costs. This product is ideally processed using injection molding technology.

Product families

Applications

Automotive & Transportation — Automotive
  • Exterior & Body

Product Families

Elastomers — Thermoplastic Elastomers
  • Thermoplastic Polyester Elastomers (TPE-E)

Other characteristics

Brand
Arnitel
Density
1080.0 - 1080.0 kg/m³
Polymer Name
Thermoplastic Copolyester Elastomer (TPC-ET)
Strain at Break
900.0 - 900.0 %
Flexural Modulus
20.0 - 20.0 MPa
Processing Methods
Injection Molding
Safety

For the safety properties of the material, we refer to our SDS which can be ordered at our sales offices. During practical operation we advise to wear personal safety protections for hand/eye/body.

Markets
Automotive & Transportation
PACKAGING

Arnitel® grades are supplied in airtight, moisture-proof packaging.

Technology
Elastomers
Labeling Claims
Food Contact Acceptable
Production Breaks

During production breaks longer than a few minutes, we advise emptying the barrel. The temperature of the barrel and the hot runner [if applicable] should be reduced to a level far enough below the melting point of the compound in order to stop decomposition of the compound. When the hot runner, nozzle, or even the screw is blocked, be aware that under these conditions a sudden outburst of molten material can take place. Always wear personal safety protections for hand/eye/body.

Material Features
  • Excellent Flexibility
  • Food Contact Acceptable
  • Good Processability
  • Good Strength
  • High Temperature Resistance

Technical data

Table 1 of 5

14 rows
CharacteristicValueUnitMethod
Hardness (3s)25Shore DISO 868
Hardness (3s)85Shore AISO 868
Tensile Modulus25MPaISO 527-1/-2
Stress at Break15MPaISO 527-1/-2
Nominal Strain at Break900%ISO 527-1/-2
Stress at 5% Strain1.3MPaISO 527-1/-2
Stress at 10% Strain2.1MPaISO 527-1/-2
Stress at 50% Strain4.5MPaISO 527-1/-2
Stress at 100% Strain5.1MPaISO 527-1/-2
Charpy Notched Impact Strength (+23°C)NkJ/m²ISO 179/1eA
Charpy Notched Impact Strength (-30°C)NkJ/m²ISO 179/1eA
Izod Notched Impact Strength (+23°C)NkJ/m²ISO 180/1A

Table 2 of 5

5 rows
CharacteristicValueUnitMethod
Melting Temperature (10°C/min)180°CISO 11357-1/-3
Coefficient of Linear Thermal Expansion (Parallel)2.2E-4/°CISO 11359-1/-2
Coefficient of Linear Thermal Expansion (Normal)2.2E-4/°CISO 11359-1/-2
Burning Behavior (1.5 mm Nominal Thickness)HBClassIEC 60695-11-10
Thickness Tested1.5mmIEC 60695-11-10

Table 3 of 5

3 rows
CharacteristicValueUnitMethod
Density1080kg/m³ISO 1183
Apparent Density645kg/m³ISO 60
Water Absorption0.8%Sim. to ISO 62

Table 4 of 5

1 row
CharacteristicValueUnitMethod
Volume Resistivity5000000000000Ohm*mIEC 62631-3-1

Table 5 of 5

5 rows
CharacteristicValueUnitMethod
Melt Volume-Flow Rate48cm³/10minISO 1133
Temperature230°CISO 1133
Load2.16kgISO 1133
Molding Shrinkage (Parallel)1%Sim. to ISO 294-4
Molding Shrinkage (Normal)1%Sim. to ISO 294-4

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