Superior Waterproofing: The 9900 Sealant Waterproof provides exceptional water resistance, effectively sealing roof and wall cracks to prevents leaks and humidity damage, ideal for both indoor and outdoor use. Easy Application and Strong Adhesion: The 9900 Waterproof Sealant applies smoothly with good tackiness, bonding firmly to a variety of materials such as metal, concrete, wood, and plastic for versatile repair solutions. Fast Curing and Easy Cleanup: The 9900 Waterproof Sealant cures quickly to form a tough, elastic barrier that resists dirt while allowing easy tool cleanup, speeding up project completion. Heat and Weather Resistant: Engineered to withstand extreme temperatures and harsh weather conditions, this waterproof silicone sealant maintains durability without cracking or peeling under heat or cold. Flexible Tear and Stretch Resistance: This silicone sealant features excellent elasticity, allowing it to stretch and recover without tearing, ensuring long-lasting protection on surfaces subject to movement or vibration., Weight: 1.73283337932 pounds, Manufacturer: Porgeel_E23_5632482