ALTIC fire retardant paints, such as the ALTIC 090 fire retardant paint, work primarily through the mechanism of forming a protective, insulating char layer when exposed to heat or flames. When the paint is subjected to high temperatures, it chemically reacts to produce a foam-like or charred layer on the surface. This layer acts as a barrier that: Blocks Heat Transfer: The char layer keeps the underlying surface away from the direct heat of the fire, preventing the surface from absorbing or conducting heat to other areas. Limits Oxygen Access: The foam or charred layer also restricts oxygen from reaching the surface, making it difficult for the fire to sustain itself and spread. Protects the Substrate: By preventing both heat and oxygen from reaching the substrate, the paint protects materials such as gypsum board, cables, or wood from catching fire or deteriorating due to high temperatures.