Firestop sealant and collars are used to seal openings and penetrations in fire-rated walls, floors, and ceilings, to prevent the spread of fire and smoke through these areas. Firestop sealant is typically a fire-resistant material that is applied around cables, pipes, and other penetrations to prevent the spread of fire. Firestop collars are used around pipes and conduits to create a fire-resistant barrier. Both firestop sealant and collars must be installed and tested to meet specific fire safety codes and standards. Proper installation and maintenance of firestop systems are critical to ensuring optimal fire protection.