915 sealant is a one-component, smooth polyurethane adhesive designed for dynamic joint movement totaling 70% of the original joint geometry (±35%). When exposed to atmospheric moisture, the sealant cures to a tough, flexible rubber. The Bostik 915 all seasons formula maintains stable physical properties over time, with a cured performance temperature range from -40°F to 150°F. This versatile sealant is ideal for various applications, ensuring long-lasting durability and flexibility.