Asphalt is easily attacked and degraded by the sun’s ultraviolet rays and the process begins as soon as a new pavement is installed. First the surface oils break down and dissipate, then the process continues down to the deeper layers of the pavement. As a result, aggregates break loose and cracks start to develop. Water penetrates through the cracks and damages the pavement in subsequent freeze-thaw cycles.
According to the Asphalt Institute, “Accumulation of moisture in the pavement structure is probably the greatest single cause of pavement distress”. In addition, oil, gasoline, and automobile fluids soften asphalt, giving rise to soft patches in the pavement. Logically, the best protection to asphalt is to provide a “barrier” coating that will resist all the damaging elements that destroy the asphalt pavement in the first place. Refined coal tar pitch, composed primarily of stable aromatic (closed-ring) compounds meets such criteria.
Bulk Sealer’s Coal Tar is a refined coal tar based sealer that seals out the damaging elements of weather and chemicals and keeps the vital oils and plasticizers locked in the asphalt pavement to keep them flexible and functional.