BOSS's Fire Block Foam Spray is versatile in use, compatible with common construction materials, and ideal for sealing around pipes, conduits, ducts, and other service penetrations. Once cured and properly inspected, it can be painted for a finished look. BOSS 812 is UL 723 and ASTM E-84 tested, supporting code-compliant applications. It's an efficient solution for contractors looking to meet safety standards while enhancing building performance.