June 19, 2019

PA6 or PA66 Filter Meshes?

SHARE has been approached by clients from different industries, asking for filter meshes from us for their particular applications. As saying goes, there is no bad material, only bad material for particular application. Here we would like to have a small talk on the most important filter material: Polyamide 6 and Polyamide 66.

PA 6 and PA66 exhibit some characteristics, however, there are differences between them, which should be considered when choosing one of them for particular applications.

First, let’s see what are the differences between PA6 and PA66 material
PA 6 Properties

  • Better Ductility (due to higher toughness)
  • Better Long time heat-resistance, on the contrary, poorer short-time heat-resistance compared with PA66
  • Better surface quality
  • Better impact resistance in lower temperature
  • Better UV-Resistance
  • Better Water-absorption
  • Lower cost.

PA 66 Properties

  • Absorping slightly less moisture than PA6
  • Higher modulous
  • Better wear resistance
  • Better short-term heat-resistance
  • Higher melting point than PA6 (at 262 degrees C whilst 220 degrees C of PA6)
  • Poor color-dyeing

Polyamide, due to its great wear resistance, dimensional stability and fluid compatibility, is widely used for liquid filtration, dust collection; When we talk about polyamide filter mesh or nylon filter mesh, we mainly refer to PA6, for one thing, it shares major chemical and physical properties with PA66, even though it is not as strong and wear resistance as PA66, yet it can do the job without problem.

In terms of filter meshes, PA66 is more cost and hard to weave than PA6 due to its toughness and surface quality.

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