Fog Seals and Rejuvenators
Consider surface treatments for use when non-load-associated surface distresses such as non-structural cracking or raveling first begin. The recommended sealer process, once non-structural cracking and/or raveling is first observed, is a fog seal (except for runways). Continue application of the fog seal on an approximately three-year cycle, depending on pavement condition, as long as surface friction.
Rejuvenators are used to restore oxidized pavement surfaces. Rejuvenators do not solve raveling issues (unless raveling is very
minor) or reduce cracking problems (unless cracking is very minor hairline cracking). Often, rejuvenators can cause pavement surfaces to be slippery for up to a year; therefore, choose areas and application rates with extreme care.