This is Hilti Firestop Acrylic Sealant (CFS-S ACR). It is used for fire stopping and sealing openings in buildings.
What it is used for:
* Sealing gaps around:
* Pipes
* Cables
* Metal ducts
* Wall and floor joints
* Preventing the spread of:
* Fire
* Smoke
* Hot gases
* Used mostly in:
* Construction sites
* Electrical installations
* Mechanical works
* Industrial buildings