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Omnia Plastica - Arnite Omnialite - PET

 

Subcategory: Polyester, TP; Polyethylene Terephthalate (PET); Thermoplastic

Material Notes:
Arnite is a relatively new semi-crystalline polymer developed for technical applications. It is suitable for mechanical parts which require dimensional stability and a low friction coefficient. Omnialite is a modified PET designed to provide a higher shock resistance than Arnite by reducing the E-modulus.

Features:

  • Low friction coefficient
  • Dimensional stability both at temperature and humidity
  • Compressive strength even at low temperature
  • Excellent machinability
  • High fatigue resistance
  • Colour: natural
Weak Point:

The material is very stiff so the shock resistance is not high. It is possible to modify it with the addition of other polymers but this operation is done to the detriment of such characteristics as stiffness, compressive and flexural strength which are the typical features of PET.

Application:

  • Mechanical: thanks to its low friction coefficient it is particularly suitable for sliding blocks, slide ways, bearings, guides, etc. Its dimensional stability makes it an excellent choice for precision parts where tight tolerances must be maintained both in moist and hot conditions.
  • Food contact: it is physiological inert and extensively used in the food industry.
  • Electrical: the excellent electrical features (stable in the long run) make PET suitable for insulators and other electrical components.
  • Chemical: good resistance to acids and chlorine solutions.

Information provided by Omnia Plastica s.p.a. for semifinished products such as sheet, rod, and tube.

Available Properties
  • Density
  • Moisture Absorption at Equilibrium
  • Water Absorption at Saturation
  • Hardness, Rockwell M
  • Ball Indentation Hardness
  • Tensile Strength at Break
  • Elongation at Break
  • Tensile Modulus
  • Compressive Strength
  • Charpy Impact Unnotched
  • Charpy Impact, Notched
  • Coefficient of Friction
  • Volume Resistivity
  • Dielectric Constant
  • Dielectric Strength
  • Dissipation Factor
  • CTE, linear 20°C
  • Thermal Conductivity
  • Melting Point
  • Maximum Service Temperature, Air
  • Deflection Temperature at 1.8 MPa (264 psi)
  • Minimum Service Temperature, Air
  • Flammability, UL94
  • Oxygen Index
  
Property Data

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