Roof Cements & Flashing Compounds

Designed for focused roof repair, this compact cartridge of Karnak 19 Flashing Cement provides a precise, resilient seal around details like flashing edges, seams, and vent bases. Its robust yet trowel-friendly formula ensures a dependable barrier—flexible enough to accommodate movement and tough enough to uphold long-term performance even when temperatures fluctuate. Key Features Trowel-ready consistency that applies cleanly and resists slippage on vertical surfaces Forms a tough, waterproof,...

Karnak 19 Ultra Rubberized Flashing Cement is a premium-grade, rubber-reinforced asphalt sealant formulated for both wet and dry surfaces. Packaged in a 10.1 oz tube, it’s ideal for quick and emergency repairs on roofing, chimneys, flashing, and other construction surfaces. This versatile cement offers excellent adhesion and flexibility, even under harsh weather conditions, making it a go-to choice for contractors and maintenance crews alike. Key Features Elastomeric rubberized formulation for...

The Karnak 19 Ultra Rubberized Flashing Cement in a 3-gallon pail is ideal for large-scale or long-term roofing repair projects. Engineered to stick in both wet and dry conditions, this heavy-duty formula seals leaks and penetrations quickly, maintaining flexibility and weather resistance over time. Designed for trowel-grade applications across a variety of roofing materials. Key Features Rubberized elastomeric formulation for superior flexibility and durability Bonds to wet or dry surfaces,...

Karnak 19 Ultra Rubberized Flashing Cement in the 1-gallon pail is a professional-grade, rubber-reinforced asphalt sealant designed for long-lasting emergency and general roof repairs. Its ability to adhere to both wet and dry surfaces makes it ideal for sealing flashing, seams, skylights, and penetrations in demanding weather conditions. Key Features Rubberized elastomeric formulation for superior flexibility and durability Wet or dry application, even sticks under water on the first build...

Designed for critical waterproofing repairs, 160.1 Amphibicaulk is a resilient caulking‑grade roof cement that adheres reliably to both damp and dry surfaces—even under adverse conditions. Its water‑displacing formulation ensures a secure, durable seal around areas prone to leaks, such as joints, skylights, chimneys, and roof penetrations. Key Features Bonds to damp or dry surfaces with water-displacing properties Ready-to-use caulk-tube format for precise application in tight or vertical...

Engineered for challenging environments, Karnak 155 Amphibikote is a dependable cold-applied roofing cement that adheres to both damp and dry surfaces. Its advanced formulation allows for rapid response during unexpected roof leaks and moisture-exposed repairs, providing a secure bond in areas where standard cements might fail. Ideal for year-round use, this single-component solution brings performance, ease, and flexibility together in one compact 1-gallon can. Key Features Bonds to wet or...

Karnak 19 Flashing Cement is a high-performance, trowel-grade compound built for sealing joints, edges, and vulnerable roof features. Packaged in a convenient 1-gallon can, it’s ideal for small repairs and precision patching jobs. Its durable formulation stays flexible after curing, resisting cracking and moisture infiltration even on vertical surfaces exposed to harsh conditions. Key Features Heavy trowel-ready consistency applies easily and resists slumping Forms a flexible, resilient,...

A rugged, heavy-body flashing compound, Karnak 18 Perfectseal delivers a long-lasting, moisture-resistant seal on vulnerable roof areas. Its dense, trowel-ready formula combines premium asphalts, reinforcing fibers, and refined solvents, offering exceptional adhesion, vertical resistance, and flexibility for both flat and angled surfaces. Exceptionally versatile, it’s perfect for a wide array of quick repairs and complex overlays. Key Features Thick, trowel-ready consistency that resists...

Packaged for larger repair jobs, Karnak 19 Flashing Cement in the 3-gallon format is a heavy-duty, trowel-grade compound formulated for long-lasting protection at roof seams, penetrations, and flashings. With its high fiber content and superior adhesion, this asphalt-based cement provides a thick, uniform seal that resists sagging, cracking, and water intrusion—even on vertical surfaces exposed to temperature swings and direct UV. Key Features Thick, trowel-ready consistency that resists...

A heavy‑duty, cold‑applied roofing cement designed for emergency use, 155 Amphibikote delivers reliable adhesion to both wet and dry surfaces, making it a top choice for contractors and plant engineers during inclement weather. Its specially formulated blend—a fusion of premium asphalts, mineral fillers, refined solvents, and water-displacing additives—ensures robust waterproofing, pliability, and durability in critical repair situations. Key Features Bonds securely to both wet and dry...