FIREFLYMastic BG (Brush Grade) is a water-based acrylic, brush-applied fire-rated coating used across a broad range of FIREFLY passive fire protection systems.

Used for coating and treating FIREFLYBatt edges, joints and interfaces, timber framing within selected FIREFLY systems, aperture and linear-gap assemblies, and other system components, its brush-applied format provides a practical solution where surface or edge treatment is required as part of the assessed system.

Its applications extend across FIREFLY wall, service penetration and linear-gap systems, with the coating also used for bonding and preparation of selected components where specified. This provides a versatile brush-applied option alongside standard FIREFLYMastic across a variety of passive fire protection applications.

Available in a 5 L aluminium tub.