Kerafix® Firestop Putty

Building Material classification B2 according to DIN 4102-1
Classification E according to DIN EN 13501-1      
General building approval Z-19. 11-1746
European technical approval ETA-13/0666

Product description

Kerafix® Firestop Putty is an intumescent sealant with an aqueous dispersion base. On exposure to fire Kerafix Firestop Putty expands from a temperature of 140°C and forms a solid heat-insulating carbon foam. In this way the further spread of fire and smoke is prevented.


  • Solvent free
  • Activation temperature 140 °C
  • Halogen free