Sealing is an essential process in protecting and enhancing the appearance of many surfaces, including concrete, brick, stone, and even wood. It involves applying a thin layer of a sealant to the surface, which then creates a barrier that prevents moisture, stains, and other contaminants from penetrating the material. While sealing is a relatively straightforward process, there are still several problems that can occur when using sealers. In this blog, we will discuss some of the common issues that you can encounter when using sealers and how to overcome them.

Uneven application

One of the most common problems that occur when sealing surfaces is uneven application. This can result in a blotchy or streaky appearance, which can be unsightly and difficult to fix. Uneven application can occur for several reasons, including using the wrong type of applicator, not applying enough sealant, or applying too much sealant. The best way to avoid this issue is to use the correct type of applicator for your specific sealer and to follow the manufacturer’s recommended application rate.

Trapped moisture

Another common problem that can occur when sealing surfaces is trapped moisture. This can happen when the surface is not completely dry before applying the sealer or when the sealer is applied in high humidity or wet conditions. Trapped moisture can cause the sealer to cloud or turn milky, which can be difficult to remove. To avoid this problem, always ensure that the surface is completely dry before applying the sealer and avoid applying the sealer in wet or humid conditions.

Peeling or flaking

Peeling and flaking of sealers can occur for several reasons, including improper surface preparation, poor application technique, and inadequate curing time. If the surface is not properly cleaned and prepared before the sealer is applied, the sealer may not adhere properly to the surface, resulting in peeling and flaking. Additionally, if the sealer is applied too thickly or too thinly, it may not cure properly, leading to peeling and flaking.

To fix peeling and flaking, the first step is to remove the existing sealer from the surface using a stripping solution or mechanical means such as sanding or grinding. Once the sealer has been removed, the surface must be properly cleaned and prepared to ensure that the new sealer will adhere properly. This may involve using a cleaning solution or pressure washing to remove any dirt, oil, or other contaminants from the surface.

After the surface has been properly cleaned and prepared, a new sealer can be applied. It is important to follow the manufacturer’s instructions for application, including the recommended thickness of the sealer and the number of coats to apply. Additionally, it is important to allow the sealer to cure properly before exposing it to traffic or other stresses.

Roller lines and overlap marks

Finally, roller lines and overlap marks can be a problem when sealing large surfaces. This can be especially problematic when using a roller to apply the sealer, as the roller can leave visible lines and marks on the surface. To avoid this issue, consider using a sprayer to apply the sealer, as this can provide a more even and consistent application. If using a roller, be sure to work quickly and evenly to avoid leaving roller lines and overlap marks.

Sealing is an essential process in protecting and enhancing the appearance of many surfaces. However, there are several problems that can occur when using sealers, including uneven application, trapped moisture, peeling or flaking, and roller lines and overlap marks. To avoid these issues, always follow the manufacturer’s recommended application rate, ensure that the surface is completely dry before applying the sealer, and consider using a sprayer for large surfaces. By following these tips, you can achieve a beautiful and long-lasting finish on your sealed surfaces