Polyamide plastic, which chemical name is PA and is sometimes referred to as nylon, is one of the engineering plastics that are most commonly used.

All polyamides are suitable for injection molding, extrusion, and blow molding. Products made of polyamide can be embossed, welded, processed, and vacuum metalized. Polyamide Plastic is easy to finish mechanically and widely used instead of bronze, brass, aluminum, and steel in various industries and agriculture.

PA is available in several different variants and with different types of fillers such as oil, wax, glass, carbon, and molybdenum disulphide.

Areas of use for amide plastic:

  • Gear
  • Propellers
  • Cable insulation
  • Door handle
  • Machinery
  • Wear details
  • Waltz

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General facts about Polyamide (PA)

  • Polyamide plastic has a tensile strength of 12,400 psi and is therefore used in a wide array of applications from clothing to reinforcement in car tires.
  • Polyamides are typically made from polycondensation of a diacid with a diamine or by ring-opening polymerization of lactams with 6, 11, or 12 carbon atoms.
  • Polyamide plastic is soft to the touch, tough, and has the highest resistance to abrasion of all textile raw materials even when wet.
  • Polyamide plastic is a very stretchy material.

The benefits of Polyamide plastic

  • High abrasion resistance: higher levels of resistance to wear by mechanical action.
  • Noise dampening: nylon is a very effective noise dampener.
  • Good thermal resistance: special grades of nylon can have a melting point of almost 300°C.
  • Good fatigue resistance: this makes it ideal for components in constant cyclic motion like gears for example.
  • High machinability: cast billets can be machined into various components that would be too costly to cast into intricate shapes.

Limitations of Polyamide plastic

  • Water absorption: water absorbed results in lower mechanical properties. Nylon 6/12 is especially formulated to resist moisture absorption.
  • Chemical resistance: nylon has a low resistance to stronger bases and acids.
  • High shrinkage: high percentages of shrinkage in cast applications.