With asphalt pavement, over time, cracks can evolve. And instead of replacing the entire section, a hot crack sealant can be applied by a specialist. This is a rubberized, commercial-grade product that is melted down into a liquid. In its liquid form, it is then applied to the crack. As it cools, it will harden to fill the crack, thus preventing further damage or moisture from entering the crack. This process is typically used in parking lots and driveways.