Bonding adhesive is a commonly used product in construction and home improvement projects. It is designed to create a strong bond between two surfaces, enhancing the overall stability and durability of the structure. When it comes to bonding adhesive on a concrete surface, one may wonder if it is possible to apply it on a sealed concrete surface. In this article, we will explore whether bonding adhesive can be successfully applied to a sealed concrete surface or if any additional preparation is required.
Understanding Bonding Adhesive:
Bonding adhesive is a specialized adhesive that is formulated to bond surfaces together. It is commonly used in various construction applications, such as securing tiles, attaching baseboards, or bonding concrete. Bonding adhesives typically come in liquid form and may require mixing or activation processes before application. They are designed to work on various surfaces, including concrete, metal, wood, and even certain plastics.
Pros and Cons of Sealed Concrete:
Before determining if bonding adhesive can be applied to a sealed concrete surface, it is essential to understand the purpose and benefits of concrete sealing. Sealing concrete provides several advantages, including:
- Protection against moisture: Sealing concrete creates a barrier that prevents water and moisture from penetrating the surface, reducing the risk of damage due to freeze-thaw cycles or water-related issues.
- Improved durability: A sealed concrete surface tends to have enhanced resistance to wear and tear. It can withstand heavy foot traffic, chemical spills, and other potential damages more effectively.
- Aesthetics: Sealing concrete enhances its appearance by adding a glossy finish or enhancing the natural color and texture of the surface.
However, there are also potential downsides to consider when working with a sealed concrete surface. One of the main challenges is achieving proper adhesion between the sealed surface and any additional material being applied, such as bonding adhesive.
Applying Bonding Adhesive to a Sealed Concrete Surface:
In general, it is not recommended to apply bonding adhesive directly to a sealed concrete surface without proper preparation. The sealer creates a smooth and non-porous barrier that makes it difficult for bonding adhesive to penetrate and create a strong bond. Therefore, it is essential to follow a few additional steps before applying bonding adhesive to a sealed concrete surface:
- Surface preparation: The sealed concrete surface should be thoroughly cleaned to remove any dust, dirt, grease, or other contaminants. This can be done by using a concrete cleaner or degreaser and scrubbing the surface with a stiff brush or a pressure washer.
- Abrading the surface: The sealed concrete surface needs to be roughened or abraded to create a texture that allows the bonding adhesive to adhere properly. This can be achieved by using a concrete grinder or a mechanical scarifier to roughen the surface. It is important to ensure that the sealer is completely removed in the area where the bonding adhesive will be applied.
- Applying a primer: Once the surface is prepared and roughened, a concrete bonding primer should be applied. The primer acts as a bridge between the sealed concrete surface and the bonding adhesive, promoting better adhesion. Follow the manufacturer’s instructions for the application of the primer, usually by using a brush or a roller.
- Application of bonding adhesive: Finally, once the primer has cured according to the manufacturer’s recommendations, the bonding adhesive can be applied to the sealed concrete surface. Follow the adhesive manufacturer’s instructions regarding coverage, curing time, and application method to achieve the best results.
While it is possible to apply bonding adhesive to a sealed concrete surface, proper preparation is crucial to ensure a strong and durable bond. Sealed concrete surfaces require additional steps, such as thorough cleaning, surface roughening, applying a primer, and following the adhesive manufacturer’s instructions. By following these steps, the bond between the bonding adhesive and the sealed concrete surface can be significantly improved, leading to a successful and long-lasting outcome.