- Product description
Sika Boom®-420 Fire is a single-component, self-expanding PU foam for sealing fire-rated wall and floor joints in interior applications.
- Fire resistance: Up to 240 minutes in accordance with EN 1366-4, depending on the installation conditions.
- Flexible application: Combination valve for use with a foam gun or adapter nozzle.
- Ready to use: Single-component system.
- Safety valve: Ensures a long service life.