Protect Exposed Aggregate Concrete

Exposed aggregate concrete, with its unique texture and aesthetic appeal, is a popular choice for both residential and commercial landscapes. However, like any other outdoor surface, it's not immune to the effects of weathering and wear. One Frequently asked question is: can you cover exposed aggregate concrete? The answer is yes, but it depends on what you want to achieve and the method you choose. Let's delve into the different ways you can cover or enhance your exposed aggregate concrete.

Before we explore the methods, it's crucial to understand that covering exposed aggregate concrete has its drawbacks. It can hide the unique beauty of the concrete, and if not done correctly, it may lead to moisture buildup beneath the surface, potentially damaging both the covering material and the concrete itself. However, in some cases, it might be necessary to cover the concrete for functional or aesthetic reasons.

Protective Coatings

Applying a protective coating is one of the gentlest ways to cover exposed aggregate concrete. This method doesn't hide the texture but provides a seal that protects the surface from stains, moisture, and fading.

Let's explore two popular protective coatings:

Acrylic Sealers

Acrylic sealers are water-based and easy to apply. They provide a clear, protective barrier that allows the natural beauty of the aggregate to shine through. However, they are not UV-resistant, so they may not be the best choice for areas exposed to prolonged sunlight.

Example of an acrylic sealer: Clear Choice Acrylic Concrete Sealer

Epoxy Coatings

Epoxy coatings are more durable and long-lasting than acrylic sealers. They provide excellent UV protection and resistance to fading. Moreover, they are available in a wide range of colors, allowing you to enhance the appearance of your concrete while providing a protective seal.

Example of an epoxy coating: Quartzon Epoxy Concrete Coating

Resurfacing Materials

If you're looking for a more robust solution to cover your exposed aggregate concrete, you might consider using resurfacing materials. These materials are applied over the existing concrete to provide a new surface with different aesthetic and functional properties.

Let's explore two popular resurfacing materials:

Microtoppings

Microtoppings are thin,Decorator concrete overlays designed to cover and resurface existing concrete. They are typically applied in a very thin layer (around 1/8" to 1/4") and can mimic the look of natural stone, wood, or other high-end materials. They are available in a variety of colors and finishes, providing a cost-effective way to transform your concrete surfaces.

Example of a microtopping: Westcoat's EncoreBond Micro toppings

Stamped Concrete Overlays

Stamped concrete overlays are another effective way to cover exposed aggregate concrete. These overlays mimic the look of intricate tile or stone patterns, offering a high-end look at a fraction of the cost. They are typically applied in a thicker layer than microtoppings (around 3/8" to 1/2") and can hide the texture of the exposed aggregate beneath.

Example of a stamped concrete overlay: Armstrong CSB's Stamped Concrete Overlays

Covering exposed aggregate concrete is possible, depending on the method you choose. Whether you opt for a protective coating or a resurfacing material, it's crucial to prepare the surface correctly and select a product that suits your needs. With proper preparation and application, you can successfully enhance or transform your exposed aggregate concrete, creating a durable, attractive surface that will stand the test of time.

However, remember that covering the aggregate may not always be the best solution. In many cases, embracing the unique beauty of exposed aggregate concrete and maintaining it with regular cleaning and sealing is the best course of action. If you're still unsure about whether to cover your exposed aggregate concrete, consider consulting with a professional concrete contractor. They can provide expert advice tailored to your specific situation and needs.