Fog seal is an application of asphalt emulsion. Fog sealing is a method that is used to lock down chips in a chip seal application. It can also be applied to an asphalt pavement surface to extend the life of the pavement by locking in surface fine materials and filling surface voids. It has no structural value and is not intended for severely aged or deformed pavements. In some cases, a fine aggregate material can be post distributed to the new fog seal application to provide additional surface or skid characteristics.