FX-WF™ is a single component, non-permanent, ready to use, fire protective coating. It is designed for application to structures in the immediate path of a wild fire. It can be applied up to several days, depending upon conditions before the arrival of a fire. On exposure to fire, FX-WF™ produces thick intumescent foam, which acts as a heat and fire barrier, protecting the underlying structure. The coating “swells up” nearly 100 times in thickness when the heat of a fire approaches, therefore protecting and insulating the structure from the fire. By using FX-WF™ you are greatly increasing the chances the structure will survive.