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10 oz Firestop Sealants, Caulks and Putties

17 products

Firestop sealants, caulks, and putties are liquid or spreadable materials that are used to seal cracks, seams, and other smaller openings. They prevent the spread of smoke, flames, and toxic fumes. Firestop sealants, caulks, and putties are suitable for new construction or retrofitting jobs.