

Aluma-Grip 701 Mastic Duct Sealant (Part Number: AFT-701-3) is a silver butyl sealant in a 3" x 50' size specifically designed for sealing hip and ridge areas on roofs and general flashing applications. With an aggressive grip, it stays flexible during application, ensuring immediate sealing on contact. AFT-701 is asphalt and solvent-free, offering leak-proof results. We provide expert, honest advice to help you find the right part.