SpecSeal® Fast Tack™ is an elastomeric single component silicone/urethane hybrid spray coating providing passive smoke and fire protection in construction joints.  Can be spray applied with airless spray equipment, brush applied for small applications ans touch ups, or flow applied for self-leveling applications. Great for areas that are subject to movement or areas that are prone to washouts, or exposure to water and moisture. Quick drying, it skins over quickly and is tack free in 2-4 hours. Cures even in below freezing temperatures.  UL classified.  Color:  Limestone.