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  • Peter Craig

Top 4 Sealer Discoloration Issues

Sealing your asphalt surfaces is an important step in maintaining their longevity and appearance. However, sometimes sealers can have discoloration issues that can be unsightly and frustrating to deal with. In this article, we will explore some of the most common sealer discoloration issues and what causes them.


sealcoated parking lot


Whitening or Blushing

One of the most common sealer discoloration issues is whitening or blushing. This occurs when the sealer turns white or cloudy, often in patches. This discoloration is usually caused by moisture trapped beneath the sealer, which reacts with the sealer and causes it to turn white. To prevent this issue, it's important to make sure that the surface is completely dry before applying the sealer. Additionally, make sure that the sealer is applied in thin, even coats to prevent moisture from getting trapped beneath it. If whitening or blushing does occur, it can usually be remedied by applying a new coat of sealer.


Staining or Discoloration

Another common issue with sealers is staining or discoloration. This occurs when the sealer reacts with other substances on the surface, such as oil or chemicals. This can result in unsightly stains or discoloration that can be difficult to remove. To prevent staining or discoloration, it's important to thoroughly clean the surface before applying the sealer. Additionally, make sure that any oil or chemical spills are cleaned up immediately to prevent them from interacting with the sealer. If staining or discoloration does occur, it may be necessary to apply a stain remover or a new coat of sealer.


Bubbling or Peeling

Bubbling or peeling is another common sealer issue that can occur when the sealer doesn't properly adhere to the surface. This can be caused by a number of factors, including moisture, temperature fluctuations, or improper application. To prevent bubbling or peeling, it's important to make sure that the surface is completely clean and dry before applying the sealer. Additionally, make sure that the sealer is applied in thin, even coats and that it's allowed to dry completely before the surface is used. If bubbling or peeling does occur, it may be necessary to remove the sealer and start again.


Fading or Yellowing

Finally, fading or yellowing is another issue that can occur with sealers over time. This is often caused by exposure to UV rays, which can cause the sealer to break down and lose its color or turn yellow. To prevent fading or yellowing, it's important to use a sealer that is designed to resist UV rays. Additionally, it's important to make sure that the surface is cleaned regularly to prevent dirt and debris from accumulating on the surface and causing the sealer to break down.


In conclusion, sealer discoloration issues can be frustrating to deal with, but they can usually be prevented or remedied with proper maintenance and application techniques. By understanding the causes of these issues and taking steps to prevent them, you can keep your concrete surfaces looking their best for years to come.


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