B2B, Hardware Description An acrylic-based firestop sealant for fire-rated joint applications. It is rated up to 4 hours with BS EN 1366-4: 2006 specification. It is suitable to seal gaps where slight movements are expected. Features :  - Fire rating up to 4 hours  - BS EN 1366-4: 2006 - ±20% Movement capability - Easy clean up - Smoke, fume, and water resistant - For indoor firewall / floor joints Applications:  Indoor joints with fire retardant requirements (wall and ceiling joints, perimeter sealing of fire rated doors and windows). It has good adhesion on most construction materials (concrete, bricks, painted wood, aluminum, etc.).