Fire stopping jacket

PROMASTOP®-IM-CJ21 is graphite-based intumescent component for single cables.

Fields of application

PROMASTOP®-IM-CJ21 is a fire stopping jacket for penetration seals in walls and floors. PROMASTOP®-IM-CJ21 is suitable for single cables of cable group 1.


  • Quick and easy installation
  • Easy retrofitting of cables
  • Integrated smoke seal
  • No annular clearance seal required
  • No coating of cables required