PPO is very challenging to process alone, that is why it is mixed with a small amount of polystyrene.

Why choose it?

  • High fire-resistance rating and good insulation capabilities.
  • Endures contact with (boiling) water for prolonged periods of time.
  • Dimensionally accurate in changing conditions.

Why not choose it?

  • Poor chemical resistance (e.g. oils and cooking grease) and risk of continuous load.

Typical applications:

  • Housings of electric appliances (insulating capacity)

I am not very familiar with PPO; there are not many reference cases. Please comment if you have more practical experience with the material.

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