Crack sealing is the first defense against pavement deterioration, a cost-effective maintenance step for the overall health and longevity of your pavement. Crack filling prevents moisture from penetrating into the pavement, affecting the base and breaking down the binder in the asphaltic concrete. Minimizing water damage will also stop weeds from taking root. Plant growth can push the pavement up, undermine structural integrity, and lead to failures and potholes.

There are two types of crack filler typically used in the parking lot and road maintenance: cold pour, and hot pour rubberized crack sealants.

Cold pour is delivered in liquid form and is poured directly into cracks. Cold pour crack filler releases moisture during the curing process. Over time, cold pour crack filler will become rigid, breaking the seal as the pavement expands in warm weather and contracts in cold weather. Since cold pour crack filler is not heated, it does not work in cooler temperatures.

Hot pour rubberized crack filler is delivered in a block form and needs to be heated. Unlike cold pour, it can be applied in cooler temperatures. Hot pour crack fillers also stay flexible after curing. This allows for better overall performance: the product moves with the expansion and contraction of the asphalt during air and ground temperature changes. Hot pour crack sealants create a superior bond to the surrounding asphalt, and keep cracks sealed better, protecting the asphalt from water intrusion for much longer than cold pour sealants.

Hot or cold, the bottom line is regularly scheduled maintenance is integral to maintaining asphaltic concrete pavements, protecting and extending the life of your investment!