Crack filling refers to the process of repairing cracks in a variety of materials such as concrete and asphalt. The purpose of crack filling is to prevent further damage and deterioration of the material by filling the gaps with a flexible and durable sealant.

In concrete and asphalt surfaces, crack filling is typically done using a hot pour sealant or cold pour sealant. Hot pour sealants are melted and applied using specialized equipment, while cold pour sealants are applied directly from the container. Both types of sealants offer excellent adhesion and flexibility to withstand temperature changes and heavy traffic.

Overall, crack filling is an important maintenance task that helps extend the lifespan of various materials. By addressing cracks early on, property owners can avoid more costly repairs down the line.