Car roof sealant is a crucial substance for maintaining the integrity and performance of your car’s roof. Composed of a range of materials, sealants protect against leaks, rust, and other damage. Leading manufacturers like Permatex, 3M, and Loctite offer various types of sealants suitable for different roof types and needs. Application requires specialized tools and equipment, available from brands like Ryobi and Bosch. Suppliers like NAPA and AutoZone ensure wide availability, while professional services provide expert installation and repair.