3M's 20 oz. Sausage Fire Barrier Sealant, CP 25WB+ provides a practical firestop solution for contractors handling commercial construction, remodeling, and building maintenance projects. The water-based formulation can be applied with compatible sausage-style dispensing equipment and is designed to adhere to common construction substrates while accommodating movement within properly designed firestop systems. CP 25WB+ is tested for use in numerous through-penetration and joint applications, helping contractors address openings that could otherwise allow fire, smoke, and hot gases to pass through rated assemblies. As with any firestop material, installation should follow the applicable tested system and manufacturer requirements to maintain the assembly's listed fire-resistance performance.