Pavement sealants are protective coatings applied to asphalt surfaces, such as driveways and parking lots. They help extend the life of the pavement by shielding it from harmful elements like UV rays, water, and oil spills. Sealants can also improve the appearance of the pavement, making it look newer and more attractive. There are different types of pavement sealants, including coal tar sealers and asphalt-based sealers. Each type has its own benefits and drawbacks, depending on factors like climate and traffic conditions. Regular application of sealants can significantly reduce the need for costly repairs and maintenance.