Fire Block FB 136 Gray single-component cartridge 10.1 fl oz (300 mL) high-temperature smoke-passage resistant sealant for pipes, wires, ducts; water-based, halogen-free, ASTM E84 (modified), UL ER9700-01, IBC/IRC compliant

Single cartridge fire block sealant FB 136 gray 10.1 fl oz
✔️ Heat resistant to 240°F (115°C), smoke blocking, water cleanup

This ready-to-use cementitious fireblock seals and fills interior voids around wires, pipes and HVAC ducts in non-rated wood or steel-framed residential and commercial construction.

✅ Single cartridge 10.1 fl oz (300 mL), single-component
✅ Heat resistant to 240°F (115°C); tack-free in ~15 minutes
✅ Bonds concrete, brick, metals, wood, plastic and cable jacketing
✅ Water-based for easy installation and cleanup; halogen-free
✅ Tested to ASTM E84 (modified), UL ER9700-01; complies with IBC and IRC
✅ Sag-resistant formulation for vertical and overhead applications; minimal shrinkage

💡 What is a fireblock sealant used for in residential and commercial construction? It stops the free passage of fire and smoke through wall, floor and ceiling cavities.

- Plugs gaps around pipes, cable jacketing and electrical penetrations as a fireblock sealant for pipes and cables. - Provides smoke-passage resistant firestop performance and acts as a draftstop to reduce air infiltration. - Handy for contractors needing water-based cleanup, quick tack-free time and strong adhesion to many materials.