Seal Coating: The purpose of seal coating is to add a protective layer to your asphalt. Our custom blend premium sealer is mostly made out of melted clay. Its intention is to stabilize the asphalt together preventing future cracks from forming. Other than melted clay it is also made up of sand, oil, and some liquids. The life span of your driveway will double when you get it seal coated by us. Seal coating your driveway also adds a cosmetic new look to your driveway making it appear newer.