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Porous ptfe grades are produced from suspension ptfe powders and specifically they are a mixture of different particle size distributions and hardness degrees to achieve the desired level of porosity.

Taking advantage of the up-to-date technologies and know-how used to process sintered ptfe products, Guarniflon® has developed different grades of porous ptfe with the following main properties:

  • Air flow rates:    up to 20 l/hour/cm2 mbar
  • Water intrusion pressure:    up to 1.2 bar
  • Average pore diameter:    up to 50 µm