Expansion Agent For Sealing Strip

Based on the expansion property of Expandable Graphite, it can be used as an Intumesecent agent. For applications like sealing strips, anti-fire doors, expansion of graphite can fill the holes and cracks of the windows and doors, to block the fire and smoke effectively. 

For example, a 2mm thick sheet of rubber with expandable graphite can expand to 25mm when the temperature goes up to 300-500℃, and this will seal off the spaces in the air vent path, preventing the spread of fire. 

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