PFC RSB120 Open State Cavity Barrier

PFC Corofil RSB120 open state cavity barrier is used to prevent the spread of fire for up to 120 minutes between horizontal cavities in external walls where a free air gap of up to 25mm needs to be maintained.


  • RSB120 expands rapidly to form a fire barrier between the inner substrate and back of the outer leaf
  • Suitable for cavities from 51mm to 300mm wide using masonry/concrete substrates and outer leaf
  • Suitable for continuous air gap of up to 25mm

Product code : X35PARSB120SPEC


Key Performance Criteria

  • Fire Rating Up To No Mins : Up to 120 mins
  • Dimensions

    Thickness : As specified

    Width : As specified

    Length : As specified

    Cavity Size : Up to 300mm

    Unit & Pack Information

    Unit Type : Each

    Unit Pack Quantity : 1