Mortar & Putty

Fire mortar and putty are essential passive fire protection materials used to seal gaps, openings and penetrations in fire‑rated walls and floors, helping maintain compartmentation and slow the spread of fire, heat and smoke. These products are typically formulated with fire‑resistant compounds that form a fire‑rated seal when installed correctly.

Fire Mortar Explained

Fire mortar is a dry powder that, when mixed with water, produces a trowelable or pourable fire‑rated compound used for sealing large openings or voids around services such as cables, pipes and conduits in masonry, concrete or rigid wall and floor assemblies. For example, FireMortar‑360 from Safetytech offers up to 360 minutes (6 hours) of fire resistance, and can be applied as a strong, load‑bearing seal that also delivers acoustic insulation benefits.