Astroflame 310ml Intumescent Mastic White
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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.
Tested in Block Wall, Concrete, Masonry and Plasterboard Partition.
Suitable for flexible walls, rigid walls & floors.
Tested in Linear Joints up to 50mm wide.
Tested in large service openings up to 490 x 150mm.
Tested for sealing of linear joints in concrete floors, masonry walls and plasterboard including head of wall details.
Tested around metallic pipes, cable trays, cable bunches, small, medium and large cables.