The purpose of Seal Coating is to protect asphalt from the results of sun and aging as well as the harmful effects of chemical spills (e.g. oil and gasoline). The seal coat material seals the asphalt pavement, preventing the oxidation and erosion of the top layer.
On older pavements, seal coating replaces fine particles lost from the asphalt surface due to oxidation. It seals the small cracks that can turn into large cracks and helps prevent water from seeping down to the base of the material.
Seal coating provides an attractive black surface that protects the asphalt from further immediate aging and provides an ideal surface for painting lines and other markings. It also leaves a smooth, clean surface ideal for sweeping, resulting in lower cleaning costs. Typical areas that we seal coat are driveways, parking lots and airport runways.