Porous PTFE - A Material with Diverse Possibilities

Porous Polytetraflon™ PTFE can be manufactured thanks to the use of a special pressing/sintering process. The size of the pores is statistically distributed and ranges from 1 to 20 μm. The average pore diameter can be set at approximately 2 to 10 μm depending on the material and degree of compaction.

Films and components made of porous Polytetraflon™ PTFE combine a high degree of air permeability and water resistance, and are therefore optimally suited to media separation in filters and diaphragms.
Porous Polytetraflon™ PTFE is also an outstanding choice for optical applications as it exhibits almost constant reflectance in the wavelength range of 250–2,000 nm.

Key Properties of Porous Polytetraflon™ PTFE at a Glance

  • Broadly adjustable air conductivity, water resistance and porosity
  • Service temperature of between -200°C and +260°C (up tp +300!C for short periods)
  • Almost universal chemical resistance
  • Virtully limitless UV and wather resistance
  • Antiadhesive behavior
  • Good electrical and dielectric properties
  • Inherently flame-retardant UL94 V-0
  • Physiologically harmless
  • Suitable for contact with foodstuffs