TremStop 33


TremStop 33 is a single-component, acrylic firestop sealant designed for sealing joints with low movement capability in walls, ceilings, etc.

TremStop 33 adheres well to most construction materials and accepts most types of paint. TremStop 33 offers excellent workability and meets the requirements of BS 476 Part 20 with the corresponding construction elements. 


  • 310 ml cartridge
  • 600 ml sausage

Technical details 

  • Joint movement capability: ± 7.5% 
  • Colour: white and grey 
  • Storage: 9 months in a dry and shaded place between +5 and +30 °C