Unsmoke Unsoot? #1 Encapsulant Forms a clear, encapsulating film to contain particulates and dust. Unsoot #1?s long-lasting barrier helps prevent the release of particulates, thereby helping to improve indoor air quality and occupant comfort after restoration. Use on structural wood, or for sealing duct work and ceiling plenums after fires, smoke damage, or oil burner puff-backs. Protective coating seals surfaces, encapsulates particulates. Zero flame spread and smoke generation in ASTM E84 testing Any number of events in a building can generate soot and particulate contamination, the most well known of which are structural fires and furnace malfunctions known as ?puff backs?. The cleaning process can be frustrated by air currents moving this particulate contamination from soiled to clean surfaces. An additional complication is that soot has extremely high surface area and can adsorb strong odors. Unsoot #1 forms a protective coating th