Sealcoating is one of the most important services in asphalt maintenance. The process involves applying a layer of sealant to asphalt. This layer will protect the surface of the asphalt against damaging elements, such as water, oil, gasoline, salt, and ultraviolet rays from the sun. These elements can degrade the surface of the asphalt. In addition, seal coating provides a slip resistant surface for vehicles, along with a rich, black finish that brings new life to any driveway or parking lot.
Sealcoating is not a fix for already damaged asphalt, but rather a preventative measure to reduce the likelihood and severity of issues in the future. Sealcoating should be applied once asphalt begins to lose its dark black color; around one or two years after the asphalt has been laid. A proper sealcoating and maintenance plan can extend the life of asphalt by 10 to 20 years.