One of the most critical things in pavement management plans is sealcoating. It is a thin coating that is applied to pavement intended to protect the surface from ultraviolet rays, gasoline and oil spills, salt and water. This sealcoat consists of either asphalt cement or coal tar pitch which is mixed with inert fillers, water, emulsifying agents or additives.
Covering a parking lot with a dark black sealant that looks brand new and wears like new as well can show a business, company or residence in a positive light.
By filling the small holes and cracks with a sealcoat you are reducing the depth to which oxygen, UV rays, oil and gas can penetrate the pavement.
Filling these holes with sealcoating also prevents a lot more water from permeating the pavement which reduces the freezing and thawing that would have resulted in frequent expansion and contraction of the pavement which is very damaging. Since the price of asphalt is unsteady, protecting your investment with sealcoating is a wise investment.