B1 fire rated fill & fix expanding foam is a premium quality fire resistant polyurethane based expanding foam formulated to give excellent performance in a majority of fire critical applications • 4 hours fire resistance • BS 476-20 • EN 1366-4 • DIN 4102-1 • Fast curing • For 30 and 60 minute fire door applications, use Fire & Acoustic Seals Fire Door Foam (FAS-750G)
