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Arnitel® EL740

1 of 93 products in this brand
Arnitel® EL740 is a high-performance thermoplastic copolyester (TPC) renowned for its exceptional blend of flexibility, high temperature resistance, and strength, complemented by excellent processing characteristics. In industries spanning automotive to E&E, it is gaining popularity as a more sustainable and efficient alternative to traditional rubbers, leading to reduced environmental impact and lower system costs. This material is processed using injection molding technology and meets food contact quality requirements.

Polymer Name: Thermoplastic Copolyester Elastomer (TPC-ET)

Processing Methods: Injection Molding

End Uses: Connectors, Fiber Optic Cable, Footwear, Front Spoiler, Optical Fiber Loose Buffer Tubes, Plyers, Screw Drivers, Side Spoiler

Density: 1290.0 - 1290.0 kg/m³

Strain at Break: 250.0 - 250.0 %

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Plastics & Elastomers Functions
Technologies

Features & Benefits

Applications & Uses

Plastics & Elastomers Processing Methods
Optical Fiber Cable Guides and Connectors Application Data

Details

Components used during installation of optical fiber networks inside buildings, the components protect the optical fibers from damaging our pressure, both leading to signal loss, during installation and use.

Benefits

  • Arnitel® offers high flexibility in combination with excellent dimensional stability
  • Arnitel® allows for ultra thin walls, enabling low cost connectors
  • Arnitel® offers easy coloring
Screw Drivers and Plyers Application Data

Benefits

  • Arnitel® TPC allows for reliable solutions due to its retention of flexibility even at temperatures down to -40°C or at elevated temperatures up to 100 ˚C
  • Arnitel® TPC allows for solutions with nice toch & feel characteristics
Optical Fiber Loose Buffer Tubes Application Data

Details

The Arnitel® loose buffer tube is placed in a jacketed outdoor optical fiber cable. The ease of coloring and extrusion make this the ultimate alternative for optical fiber coatings.

Benefits

  • Arnitel® offers high extrusion speeds due to material properties
  • Arnitel® has high flexibility, making bending easier
  • Arnitel® offers excellent surface smoothness, creating possibilities for after processing

Properties

Flame Rating
Mechanical Properties
ValueUnitsTest Method / Conditions
Yield Stress36MPaISO 527-1/-2
Yield Strain17%ISO 527-1/-2
Nominal Strain at Break>50%ISO 527-1/-2
Charpy Notched Impact Strength (at +23°C)10kJ/m²ISO 179/1eA
Charpy Notched Impact Strength (at -30°C)6kJ/m²ISO 179/1eA
Izod Notched Impact Strength (at +23°C)9kJ/m²ISO 180/1A
Thermal Properties
ValueUnitsTest Method / Conditions
Melting Temperature (10°C/min)221°CISO 11357-1/-3
Temperature of Deflection Under Load (0.45 MPa)120°CISO 75-1/-2
Vicat Softening Temperature (50°C/h 50N)160°CISO 306
Coefficient of Linear Thermal Expansion (parallel)1.65E-4/°CISO 11359-1/-2
Coefficient of Linear Thermal Expansion (normal)1.65E-4/°CISO 11359-1/-2
Burning Behaviour (at 1.5 mm Nominal Thickness)UL HBclassIEC 60695-11-10
Glow Wire Ignition Temperature (at thickness 1 / - mm)850°CIEC 60695-2-13
Relative Temperature Index (Electrical, 1.5 mm)50°CUL746B
Relative Temperature Index (with impact, 1.5 mm)50°CUL746B
Relative Temperature Index (without impact, 1.5 mm)50°CUL746B
Electrical Properties
ValueUnitsTest Method / Conditions
Relative Permittivity (100Hz)3.7IEC 62631-2-1
Relative Permittivity (1 MHz)3.3IEC 62631-2-1
Dissipation Factor (1 MHz)300E-4IEC 62631-2-1
Volume Resistivity1E13Ohm*mIEC 62631-3-1
Electric Strength23kV/mmIEC 60243-1
Comparative Tracking Index600VIEC 60112
Rheological Calculation Properties
ValueUnitsTest Method / Conditions
Density of Melt950kg/m³
Thermal Conductivity of Melt0.1W/(m K)
Specific Heat Capacity Melt1900J/(kg K)
Effective Thermal Diffusivity5.54E-8m²/s
Other Properties
ValueUnitsTest Method / Conditions
Water Absorption0.6%Sim. to ISO 62
Humidity Absorption0.15%Sim. to ISO 62
Density1290kg/m³ISO 1183
Apparent Density830kg/m³ISO 60
Mechanical Properties (TPE)
ValueUnitsTest Method / Conditions
Tensile Modulus800MPaISO 527-1/-2
Stress at 5% strain30MPaISO 527-1/-2
Stress at 10% strain34MPaISO 527-1/-2
Stress at 50% strain25MPaISO 527-1/-2
Stress at 100% strain26MPaISO 527-1/-2
Stress at Break43MPaISO 527-1/-2
Strain at Break250%ISO 527-1/-2
Nominal Strain at Break360%ISO 527-1/-2
Compression Set Under Constant Strain (at 70°C)35%ISO 815
Tear Strength215kN/mISO 34-1; Method B
Shore D Hardness (3s)70ISO 868
Rheological Properties
ValueUnitsTest Method / Conditions
Melt Volume-Flow Rate (at 230 / * °C, 2.16 / * kg)18cm³/10minISO 1133
Molding Shrinkage (parallel)1.75%Sim. to ISO 294-4
Molding Shrinkage (normal)2%Sim. to ISO 294-4

Regulatory & Compliance

Certifications & Compliance
OEM Specifications
OEM Standards
Quality Standards

Technical Details & Test Data

Creep Modulus-Time 23°C

DSM Engineering Materials Arnitel EL740 Creep Modulus-Time 23°C

Chemical Resistance
Chemical TypeChemical NameResistance
OtherAcetic acid (10% by mass) at 23°Cresistant
KetonesAcetone at 23°Cresistant
OtherAmmonium hydroxide (10% by mass) at 23°Climited resistant, tests necessary to verify
OtherASTM 1 at 23°Cresistant
OtherASTM 3 at 23°Cresistant
OtherBrake fluids (DOT 3/4) at 23°Cnot resistant
OtherCalcium chloride (10% by mass) at 23°Climited resistant, tests necessary to verify
OtherChloroform at 23°Cnot resistant
EthersDiethyl ether at 23°Climited resistant, tests necessary to verify
AlcoholsEthanol at 23°Climited resistant, tests necessary to verify
OtherEthyl Acetate at 23°Climited resistant, tests necessary to verify
OtherFuel; Diesel at 85°Cresistant
OtherHydrochloric acid (10% by mass) at 23°Cresistant
OtherHydrogen peroxide (30% by mass) at 23°Climited resistant, tests necessary to verify
OtherNitric acid (10% by mass) at 23°Cresistant
OtherPhosphoric acid (10% by mass) at 23°Cresistant
OtherSodium hydroxide (10% by mass) at 23°Cresistant
OtherSulfuric acid (30% by mass) at 23°Cresistant
OtherTetrachloroethylene at 23°Climited resistant, tests necessary to verify
HydrocarbonsToluene at 23°Cresistant
OtherTransformer oil at 23°Cnot resistant
OtherTrichloroethylene at 23°Cnot resistant
OtherWater at 23°Cresistant
OtherZinc chloride (10% by mass) at 23°Cresistant
Creep Modulus-Time 60°C

DSM Engineering Materials Arnitel EL740 Creep Modulus-Time 60°C

Dynamic Shear Modulus (G)-Temperature

DSM Engineering Materials Arnitel EL740 Dynamic Shear Modulus (G)-Temperature

Dynamic Tensile Modulus (E)-Temperature

DSM Engineering Materials Arnitel EL740 Dynamic Tensile Modulus (E)-Temperature

Shearstress-Shear Rate

DSM Engineering Materials Arnitel EL740 Shearstress-Shear Rate

Specific Volume-Temperature (pvT)

DSM Engineering Materials Arnitel EL740 Specific Volume-Temperature (pvT)

Stress-Strain (TPE)

DSM Engineering Materials Arnitel EL740 Stress-Strain (TPE)

Viscosity-Shear Rate

DSM Engineering Materials Arnitel EL740 Viscosity-Shear Rate

Packaging & Availability