Our Intumescent Mastic is a one part intumescent acrylic mastic for sealing gaps around fire doors, window frames and for sealing joints, voids and irregular holes in fire rated structures. The sealant forms a char, preventing the passage of fire and smoke, when exposed to the heat of a fire.
Maintains fire integrity when sealing around pipes and cables that penetrate walls. Suitable for flexible walls, rigid walls & floors
- in Block Wall, Concrete, Masonry and Plasterboard Partition.
- in Linear Joints up to 50mm wide tested in large service openings up to 490 x 150mm.
- for sealing of linear joints in concrete floors, masonry walls and plasterboard including head of wall details.
- around metallic pipes, cable trays, cable bunches, small, medium and large cables
See Data Sheets and additional information below