Microsealing Program

Micro-surfacing is a form of preventative roadway maintenance known as a surface treatment. The mixture consists of water, asphalt emulsion, and aggregate (very small, crushed rock) and is applied to a roadway’s existing pavement. Micro-surfacing is typically applied to roadways in good or better condition that may exhibit minor cracking or other surface defects. Micro-surfacing is designed to extend pavement life by 5 to 7 years and delay costly roadway repairs by protecting the underlying pavement from moisture penetration, oxidation, and degradation.

Micro-surfacing material hardens quickly without relying on the sun for evaporation, making streets that are heavily travelled and receive a lot of shade excellent candidates for this treatment. Micro-surfacing is usually applied using a specific type of truck called a “slurry truck.” Workers follow the truck with squeegees to ensure a smooth and even application. Once placed, micro-surfacing hardens within one to two hours.