Bedding and sealing flashing, this 5-gallon flashing cement is a thick, fibered asphalt mastic for sealing flashing, seams, and detail work where a heavier, more flexible cement is needed than general roof cement. Troweled behind and over flashing at walls, chimneys, vents, and valleys, it beds the metal, seals the edges, and stays flexible to move with the joint without cracking, bonding to metal, masonry, and roofing. The fibered body clings to vertical surfaces and fills gaps around penetrations. A 5-gallon pail handles a large flashing job. It is the mastic for durable, watertight flashing and detail work.
Key Features:
- 5 Gal. Flashing Cement -- A thick, fibered mastic for flashing and detail work.
- Beds & Seals Flashing -- Beds metal and seals edges at walls, chimneys, and vents.
- Flexible, Won't Crack -- Moves with the joint without cracking.
- Clings to Vertical -- The fibered body holds on walls and fills around penetrations.
- Bonds Many Surfaces -- Metal, masonry, and roofing.
Where to Use:
- Roof repair -- Patching, sealing, and flashing on a roof.
- Flashing & details -- Sealing flashing, seams, and penetrations.
- Building maintenance -- Keeping a roof watertight.