Firestop Sealants

These top firestop insulation products, Firestop Sealants and Intumescent Caulks, are applied to gaps and voids made by penetrants through fire-rated walls. Firestop Sealants will stop the passage of smoke and flame through these voids during the event of a fire. Most Firestop Caulks and Sealants are "Intumescent" which means that they will expand and harden when the fire-rated caulking hits an elevated temperature caused by a fire. The intumescent char, similar to our fire pipe collars, will block and seal any gaps or openings and prevent smoke or other toxic fumes from passing through. Browse our inventory of fire sealant caulks and fireproofing sealants below or contact us today for more information!