January 23, 2024

What Is Crack Filling for Sealcoating?

Did you know that cracks in pavement can lead to costly repairs if left untreated? That’s where crack filling for sealcoating comes in. It’s an essential maintenance technique that can save you time and money in the long run.

But what exactly is crack filling and how does it work? In this discussion, we’ll explore the importance of crack filling, the materials used, the process involved, and the benefits it brings to your pavement.

So, buckle up and get ready to discover how crack filling can keep your pavement in top shape and extend its lifespan.

Key Takeaways

  • Crack filling is an important maintenance practice that prevents further damage to pavement and extends its lifespan.
  • There are different types of crack filling materials available, such as cold-patch asphalt crack filler and hot-patch asphalt crack sealant, each suitable for different types of cracks.
  • The process of crack filling involves assessing the pavement condition, cleaning the crack, choosing the appropriate filler material, and allowing it to dry.
  • Crack filling not only provides a permanent solution for nonworking cracks but also prevents moisture intrusion and improves the overall curb appeal of parking lots and driveways.

Importance of Crack Filling

A vibrant road enhanced with colorful crack filling for sealcoating.

Crack filling is crucial for preventing further damage to pavement and maintaining its integrity. When cracks form in the pavement, they create pathways for water to infiltrate the surface. This water can lead to erosion and undermine the stability of the pavement, eventually causing pavement failure. By filling these cracks, you can effectively prevent water from entering and causing such damage.

Not only does crack filling help protect the pavement, but it also extends its lifespan. By addressing cracks early on, you can avoid the need for costly repairs or even complete pavement replacements. This can save you significant money in the long run.

To ensure effective crack filling, it’s important to use high-quality materials and equipment. The crack filling material, often a hot sealant, should be carefully selected to provide a durable and long-lasting repair. Additionally, professional equipment should be used to properly clean and prepare the crack before filling it.

Regular crack filling maintenance is essential for preserving the pavement’s condition. By addressing existing cracks and preventing the formation of new ones, you can ensure that your pavement remains in good condition for a longer period. This proactive approach to pavement maintenance is key to avoiding more extensive and costly repairs in the future.

Types of Crack Filling Materials

To effectively protect and extend the lifespan of your pavement, it’s important to understand the different types of materials used for crack filling. Here are the two main types of crack filling materials:

  • Cold-Patch Asphalt Crack Filler: This type of crack filler is suitable for nonworking cracks that are less than 0.10 inches wide. It’s commonly used for block, longitudinal, or diagonal cracks. Cold-patch asphalt is considered a more permanent and durable solution for crack filling. It requires minimal equipment such as a shovel, tamper, pressurized air, and patch mix for application. Cold-patch asphalt crack filler provides a cost-effective option for maintaining your parking lot or asphalt pavement.
  • Hot-Patch Asphalt Crack Sealant: For smaller, manageable cracks, hot-patch asphalt crack sealant is the preferred option. This method involves injecting hot sealant into or above the cracks to prevent water infiltration and further damage. Hot-patch asphalt crack sealant offers a longer lifespan and better protection compared to filling. Specialized equipment such as tanks, melt pots, and torches are required for this application. Investing in hot-patch asphalt crack sealant ensures a more durable and reliable solution for sealing cracks in your asphalt pavement.

Understanding the different types of crack filling materials will help you make an informed decision when it comes to maintaining and protecting your pavement. Choose the appropriate crack filler or sealant based on the size and type of cracks you’re dealing with to ensure the longevity and integrity of your asphalt surface.

Process of Crack Filling

First, assess the condition of your pavement and identify the cracks that require filling. Crack filling is an essential step in maintaining the integrity of your asphalt pavement and extending its life. It involves filling and sealing cracks in the pavement surface to prevent water and other damaging substances from penetrating the subgrade.

The process of crack filling can be summarized in the following steps:

  1. Prepare the crack: Use a wire brush or high-pressure air to clean the crack and remove any debris or vegetation.
  2. Apply the crack filler: Choose a suitable crack filler material based on the width and depth of the crack. For nonworking cracks less than 0.10 inches wide, cold-patch or hot-patch asphalt is recommended. Hot Pour asphalt is effective for shallow cracks less than three-quarters of an inch wide.
  3. Fill the crack: Pour the crack filler into the crack, ensuring that it slightly overfills to compensate for shrinkage.
  4. Compact the filler: Use a tamper or a hand roller to compact the filler and ensure a tight bond with the surrounding pavement.
  5. Allow for drying: Give the crack filler sufficient time to dry and cure, typically 24 to 48 hours, depending on weather conditions.

Benefits of Crack Filling for Sealcoating

One of the key advantages of crack filling for sealcoating is its ability to provide a more permanent solution for nonworking cracks, preventing further damage to the pavement. By filling the cracks and holes in the asphalt with a rubberized asphalt emulsion, crack filling creates a barrier that prevents moisture intrusion and the expansion and contraction of the pavement due to temperature changes. This not only extends the lifespan of the pavement but also prevents water from penetrating beneath the surface, which can lead to subgrade damage and bigger problems down the line.

Benefits of crack filling for sealcoating include:

  • Cost-effectiveness: Crack filling requires minimal equipment and materials, making it a cost-effective option for smaller cracks. It helps in avoiding costly repairs in the future.
  • Improved curb appeal: By filling the cracks, sealcoating enhances the appearance of parking lots and driveways, giving them a fresh and well-maintained look. This can significantly improve the curb appeal of your property and make a positive impression on visitors and potential customers.

How to Maintain Crack Filled Surfaces

When it comes to maintaining crack filled surfaces, proper care and regular inspections are essential to ensure the longevity and durability of your pavement. After crack filling, it’s important to monitor the condition of the filled cracks to identify any signs of deterioration or widening.

Inspect the filled cracks at least once a year, and more frequently in areas with high traffic or harsh weather conditions. Look for any cracks that have expanded or contracted, as these may require additional crack filling or sealing.

In addition to inspections, regular maintenance is crucial to keep crack filled surfaces in good condition. Sweep the pavement regularly to remove debris and prevent it from settling into the cracks. Clean the cracks using a high-pressure air or water system to remove any dirt or vegetation that may have accumulated.

If any cracks widen or show signs of damage, it’s important to address them promptly by re-filling or sealing them.


In conclusion, crack filling for sealcoating is an essential process that can greatly enhance the durability and appearance of pavement. By injecting asphalt emulsion into cracks, moisture damage is prevented and the lifespan of the pavement is extended.

This cost-effective solution provides strong resistance to wear and tear, improving pavement performance and curb appeal. Maintaining crack-filled surfaces is crucial for long-lasting results.

So, don’t wait any longer and give your pavement the protection it deserves!

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