DOWSIL Firestop 400

One-piece (one-component) fluffy acrylic sealant exhibits excellent adhesion properties on a wide range of materials without the need for any assistants. Its high swelling ability swells at high temperatures, providing superior resistance and protection against flame and smoke.

Usage areas

To ensure integrity in the door and window frames of interior floors, maintenance of fire walls

At the joints of the fire walls - at the joints


Flame resistance up to four hours

Paintable water-based sealant

Provides high protection against flame and smoke by swelling at high temperatures

ready to use