Intumescent acoustic mastic
ST88 Mastic
ST88 is a fire-rated intumescent acoustic acrylic sealant for pointing and sealing perimeter joints around fire door frames and penetrations. It offers flexible, paintable application and has been tested for fire resistance up to four hours under EN 1366-3.
Downloads
Need Technical Support?
Our technical team can help specify the exact configuration of ST88 Mastic for your project.
Contact Technical