Sika Boom®-420 Fire

Fire resistant polyurethane expanding foam for gun and nozzle application

Sika Boom®-420 Fire is a 1-part, fire resistant, self-expanding polyurethane foam. It meets the fire resistance requirements of up to 180 minutes according to EN 1366-4. The combi-valve allows the application by either gun or nozzle.

  • Fire resistance up to 180 minutes according to EN 1366-4
  • Combi-valve for gun or nozzle application
  • 1-Part ready to use
  • Safety valve for extended shelf life
  • Cured foam can be cut, trimmed and sanded