Asphalt-based sealers are protective coatings used primarily on asphalt surfaces, such as driveways and parking lots. They help to extend the life of the asphalt by sealing small cracks and preventing water penetration, which can lead to further damage. These sealers are typically made from a mixture of asphalt, water, and additives that enhance their durability and performance. Applying asphalt-based sealers can improve the appearance of asphalt surfaces, giving them a fresh, black finish. The sealing process usually requires cleaning the surface and allowing it to dry before applying the sealer with a brush or squeegee. Regular maintenance with these sealers can help reduce the need for costly repairs.