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COMSOL CD

DSM Arnitel® PL461 Injection Molding Grade Copolyester Elastomer (North America)

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Subcategory: Elastomer, TPE; Polyester TPE; Polymer; Thermoplastic

Material Notes:
Product description: Arnitel® combines the advantages of engineering thermoplastics, being easy to process with excellent mechanical properties, at the same time with the flexibility of rubbers.

Arnitel does not require vulcanization. This leads to substantial reductions in part cost. Arnitel can be used over a wide range of temperatures. Arnitel has exceptional fatigue, creep resistance and resistance to oils, greases and many other chemicals.

Characteristics of Arnitel:

  • Excellent strength over a wide range of temperatures
  • Excellent dynamic properties e.g. creep and fatigue
  • High heat resistance
  • Exceptional resistance to oils and greases
  • Good chemical resistance
  • High degree of versatility in processing
  • Easy coloring using masterbatches
  • Surface quality from high gloss to textured
  • Excellent heat resistance (long term 165°C)
  • Good electrical insulation properties
  • Low moisture absorption, excellent dimensional stability
  • Easy flow, fast cooling times

Typical Applications:

  • Automotive: Arnitel® is extensively used in the automotive industry for applications requiring exceptional fatigue resistance and resistance to oil and greases. Examples are: Rack and Pinion Bellows, Constant Velocity Joint Boots (CVJ Boots), Air brake tubings.
  • Arnitel in the Electronic and Consumer Goods Industry: Arnitel® finds enormous potential and is also widely used in the consumer electronics by some of the world's best companies. Arnitel® is the best choice for low noise gears where their exceptional processability without any defects such as flash, makes it the material solution of choice. Arnitel® is also used in highly demanding applications such as in mobile phone antennas.

Arnitel® has exceptional flexibility and can perform or even outperform functions that normally require conventional rubbers. Available in a wide range of hardnesses, Arnitel can replace metals, thermoplastics, leather and rubber, often with a reduction in finished part costs.

Information provided by DSM.

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Physical PropertiesMetricEnglishComments
Density1.21 g/cc0.0437 lb/in³ ISO 1183
Melt Flow36.3 g/10 min36.3 g/10 min Calculated from Volume Flow Rate of 30 cm3/10 min, 2.16 kg, 230°C; ISO 1133

Mechanical Properties
Hardness, Shore D4646 3 s; ISO 868
Tensile Strength at Break22.4 MPa3250 psi ISO 527-1/-2
Tensile Strength, Yield12.4 MPa1800 psi Stress at 50% Strain; ISO 527-1/-2
Tensile Strength, Yield13.7 MPa1990 psi Stress at 100% Strain; ISO 527-1/-2
Tensile Strength, Yield5.3 MPa769 psi Stress at 5% Strain; ISO 527-1/-2
Tensile Strength, Yield8.4 MPa1220 psi Stress at 10% Strain; ISO 527-1/-2
Elongation at Break400 %400 % ISO 527-1/-2
Tensile Modulus0.165 GPa23.9 ksi ISO 527-1/-2
Izod Impact, Notched (ISO)NBNB 23°C; ISO 180/1A
Charpy Impact, Notched, Low TempNBNB -30°C; ISO 179/1eA
Charpy Impact, NotchedNBNB 23°C; ISO 179/1eA

Thermal Properties
Melting Point220 °C428 °F 10°C/min; ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi)65 °C149 °F ISO 75-1/-2

Descriptive Properties
High impact or impact modifiedYes 
Injection MoldingYes 
Without fillersYes 
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