Fire caulks, sealants, and mortar are essentials that fill construction gaps and blank openings in walls and floors, preventing the spread of fire and/or noxious gases. The products in this collection are designed to adhere to a variety of materials, including glass, metal, non-oily wood, plastics, and rubber. Tubes are most common for small scale operations (often via a caulking gun). We also have a selection of buckets for spray applications.