Nullifire FS702 Intumastic – Water-Based Fire Sealant

FS702 Intumastic is a water-based acrylic sealant that cures to form a firm yet flexible fire seal for both linear joints and service penetrations. Designed to work seamlessly with FB750 Intubatt , it provides fire, smoke, acoustic, and air-pressure sealing in a variety of construction applications. Key Features & Benefits Up to 4 hours fire resistance – tested to EN 1366-4 and EN 1366-3 Up to 30% movement capability during fire exposure Suitable for flexible walls, rigid walls, and rigid floors Acoustic & smoke sealing , air pressure tested up to 2000 Pa Optifire® and Optifire®+ traceability identifiers Usage & Applications FS702 Intumastic is ideal for sealing around: Non-combustible services, cables, and rock fibre insulated non-combustible pipes (minimum depth 25 mm) Linear construction joints (masonry/flexible wall to masonry/rigid wall/rigid floor) FB750 Intubatt to walls or floors  Service penetrations: copper & steel pipes, cable bundles/trays/ladders (with or w