TBA Tube High Pressure Graphite Mastic

Firefly Intumastic HP is a low smoke intumescent pressure exerting mastic used to seal openings in fire rated walls and floors where passage of flame is a risk.


  • Used to fire rate small plastic pipes, small cable bunches (with or without cable tray), and plastic conduits
  • For use on 25-55 mm diameters
  • For cables passing through fire rated walls and floors