The lifespan of sealcoating can vary depending on several factors, including climate, traffic volume, and the quality of the sealcoat application. Generally, a properly applied sealcoat can last anywhere from 2 to 5 years.

Once the asphalt cracks, water and/or car fluids can seep in and create pools of water underneath the surface. This will lead to more cracking and further damage. Sealcoating will protect against fading, and can even improve the appearance of your asphalt.

Unlike an asphalt overlay, sealcoating is a preventive measure. An asphalt sealcoat acts like a fresh coat of paint. It protects your asphalt from UV rays, precipitation, and automobile fluids. An asphalt overlay is a fresh layer of asphalt used to patch over pavement that has cracked or potholed.

Based on the research that was conducted, the team could not conclude that seal coating is counterproductive. The researchers were able make recommendations for implementing seal coating on street asphalt pavements.