Maintenance & Repair

Hot pour crack fill is applied for flexibliity and longer lasting application.

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Hot pour and cold pour are terms used in the asphalt industry to define the temperature of the material used at the time of application. Hot pour sealants are heated on the job and then applied while hot.

Hot pour sealants are asphalt based where cold pour sealants are water based. Hot pour is best in cold weather where cold pour sealants require evaporation to cure and therefore are more suited for use in warmer weather.

Hot pour cools to a pliable, rubber type substance that can contract or expand when temperatures change. Cold pour sealants lack flexibility and cure to a rigid, inflexible substance that cannot ‘move’ when the asphalt reacts to changes in the temperature which can lead to the expulsion of the filler from the crack. This leads to openings where water can penetrate beneath the surface.

If the crack is large then hot pour is the recommended product to use. The larger the crack, the more shrinkage can occur. Where cold pour will tend to shrink, breaking the bond between the surrounding pavement and sealant, hot pour forms a much stronger bond with much less shrinkage.

Hot pour is a better value with less likelihood of requiring multiple applications over time and is the only method used at Carolina Striping and Sealcoating.