Intumescent sealing system

PROMASTOP®-IM Grille is a fire intumescent sealing system for ventilation openings. The ventilation grill starts expanding at approx. 190 °C and seals the openings, which prevents spreading of smoke and fire.

Fields of application

PROMASTOP®-IM Grille is used as ventilation module in fire compartment walls.


  • Module system
  • Slim design
  • Resistant to atmospheric influences (light, heat, frost, UV radiation, humidity)