- Fire resistance up to 180 minutes depending on the configuration
- 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
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 AS 1530.4:2014. The combi-valve allows for precise, easy and efficient application by either gun or nozzle.
Sika Boom®-420 Fire restores the fire resistance performance of a floor or wall which incorporates linear seals. Application is for interior use only.