AWF Blog

When people think about fire protection in buildings, they usually picture alarms, sprinklers, or fire extinguishers. But one of the most important lines of defense is often hidden behind walls—firestop materials that prevent flames, smoke, and toxic gases from spreading through small openings. One such solution is fire-rated putty, a simple yet highly effective material designed to seal penetrations and restore the fire-resistance of walls and floors. What Is Firestop Putty? Firestop putt …