Can You Put Epoxy Over Self-Leveling Concrete?

If you plan on installing a new floor or updating an existing one, you may consider using self-leveling concrete and epoxy together.

The good news is that it is possible to put epoxy over self-leveling concrete, but there are some essential things to remember.

Firstly, it's essential to ensure the self-leveling concrete is installed correctly and cured before applying the epoxy.

The surface should be clean, free of debris, and dry. Additionally, the temperature of the surface should be at least 50º F when pouring the epoxy.

Not all epoxy products are suitable for use over self-leveling concrete, so it's important to check with the manufacturer to ensure compatibility.

With proper installation and the right products, epoxy can provide a durable and attractive finish over self-leveling concrete.

Epoxy And Self-leveling Concrete

If you're considering installing an epoxy coating over self-leveling concrete, it's important to understand the characteristics of each material.

Epoxy is a two-part compound that consists of a resin and a hardener. The two parts chemically react when mixed to form a strong, durable coating.

Epoxy coatings are commonly used in industrial settings due to their resistance to chemicals, abrasion, and impact.

They can also be used in residential settings for garage floors, basement floors, and other concrete surfaces.

Self-leveling concrete is a cement-based material designed to level itself out after being poured. It is commonly used to level uneven or sloped concrete surfaces in preparation for other flooring materials.

Self-leveling concrete can be used as a base layer for epoxy coatings, providing a smooth and level surface for the coating to adhere to.

Before applying an epoxy coating over self-leveling concrete, it's essential to ensure that the surface is prepared correctly.

This may involve cleaning the surface, repairing any cracks or damage, and ensuring the self-leveling concrete has been fully cured.

Choosing an epoxy product compatible with self-leveling concrete is also essential, as not all epoxy coatings are suitable for this application.

The Process of Applying Epoxy Over Self Leveling Concrete

If you're considering applying epoxy over self-leveling concrete, you're in luck! It's a great way to create a durable and attractive flooring surface. Here's a breakdown of the process:

Preparation

Clean the surface thoroughly: This involves sweeping or vacuuming the surface to remove dust, dirt, or debris. You can also use a degreaser to remove any oil or grease stains.

Etch the surface: This involves using an etching solution to create a rough surface to which the epoxy can adhere. Make sure to follow the manufacturer's instructions for the etching solution.

Rinse the surface: After etching, rinse it thoroughly with water and allow it to dry completely.

Application

Once the surface is prepared, you can start applying the epoxy. Here are the steps you should take:

Mix the epoxy: Follow the manufacturer's instructions for mixing the epoxy. Make sure to mix it thoroughly to ensure a consistent finish.

Apply the epoxy: Use a roller or brush to apply the epoxy in thin, even coats. Make sure to work quickly and avoid leaving any thick areas or puddles.

Allow the epoxy to cure: Follow the manufacturer's instructions for fixing time. Depending on the product, this can range from a few hours to several days.

Curing

After the epoxy has cured, you should take a few additional steps to ensure a long-lasting finish. Here are some tips:

Apply a topcoat: This can help protect the epoxy from scratches and UV damage. Follow the manufacturer's instructions for applying the topcoat.

Wait before using the surface: Depending on the product, you may need to wait a few days before using the surface. Make sure to follow the manufacturer's instructions for curing time.

That's it! Following these steps, you can create a beautiful and durable flooring surface that will last years.

Note: Self-leveling concrete typically takes 24-48 hours to dry before applying epoxy.

Benefits of Epoxy Over Self Leveling Concrete

Here are a few reasons why epoxy over self-leveling concrete might be a good choice for your project:

Durability

Epoxy is known for its durability and strength. It can withstand heavy foot traffic, machinery, and even chemical spills. Applying over self-leveling concrete creates a firm and level surface, making it ideal for high-traffic areas.

Aesthetic Appeal

Epoxy comes in various colors and finishes, making it a versatile choice for any design aesthetic. When applied over self-leveling concrete, it can create a seamless, polished look that is beautiful and functional.

Easy to Clean

Epoxy over self-leveling concrete is easy to clean and maintain. Its smooth surface makes it difficult for dirt and debris to accumulate, and spills can be easily wiped away with a damp cloth.

Resistant to Stains and Chemicals

Epoxy is resistant to stains and chemicals, making it ideal for use in garages, workshops, and other areas where spills and stains are common. Applying over self-leveling concrete creates a surface that is stain-resistant and easy to clean.

Potential Challenges and Solutions

When it comes to putting epoxy over self-leveling concrete, there are some potential challenges that you might encounter.

Uneven Surface

One of the main reasons for using self-leveling concrete is to create a smooth and level surface.

However, even after applying the self-leveling concrete, you may still have some unevenness in the surface. If you apply epoxy over an uneven surface, it will highlight the imperfections and make them more noticeable.

To overcome this challenge, you can use a floor grinder to level out any high spots and fill in any low spots with a patching compound.

It's important to ensure the surface is completely level before applying the epoxy.

Check out this floor grinder on Amazon.

Moisture Issues

Moisture can be a big problem when applying epoxy over self-leveling concrete. If there is too much moisture in the concrete, it can cause the epoxy to bubble and peel.

Moisture issues can also cause the epoxy to cure improperly, resulting in a weak and brittle surface.

You should test the moisture content of the concrete before applying the epoxy. If the moisture content is too high, you may need to use a moisture barrier or a moisture-mitigating primer before applying the epoxy.

Adhesion Problems

Another potential challenge when applying epoxy over self-leveling concrete is adhesion problems.

If the surface is not properly prepared, the epoxy may not adhere properly and peel or flake off.

To ensure proper adhesion, preparing the surface by cleaning it thoroughly and removing any contaminants is essential. A concrete cleaner can remove dirt, oil, or grease. You may also need a mechanical grinder or shot blaster to roughen the surface and create a better bond between the epoxy and the concrete.