microFlon® barite

Microstructured PTFE sheet with barium sulphate

microFlon® PTFE gasket sheet, filled with barium sulphate; TA-Luft certified

microFlon® barite is a sintered PTFE gasket with highly resistant filler, mainly for applications in the chemical industry.

Finely dispersed barium sulphate gives microFlon® barite improved cold flow resistance and good relaxation properties.

Due to the high chemical resistance of the filler, microFlon® barite can be used in contact with a variety of aggressive media.

Typical applications
  • Components
    Piping systems, apparatus flanges
  • Flanges
    Steel flanges or other metallic flange systems
  • Media
    Strong alkalis, weak acids, chlorine, common media in chemical and petrochemical applications
  • 100 % pure PTFE with inorganic filler
  • chemically inert (except for molten alkali metals and elemental fluorine, for advice please contact our technical service).
  • Suitable for strong alkalis
  • Inhibited against “cold flow”
  • Good recovery
  • Good electrical properties
  • Non-ageing
Technical data
  • Material
    virgin PTFE, reinforced with barium sulphate
  • Temperature resistance of the sealing material
    -210°C to +260°C
  • Chemical Resistance
    Chemically resistant to all media from pH 0 to 14, except molten alkali metals and elemental fluorine (for advice please contact our technical service).
  • Recommended Field of Application
    Vacuum up to 40 bar *
    at -100°C to +200°C *
    * depending on the respective application
  • Tests / Approvals / Certificates
    tested according to TA-Luft (VDI 2440) up to +230 °C
    and VDI 2290 at 23 °C and 40 bar

To the data sheet