Concrete, though robust, is susceptible to cracking over time due to various factors such as temperature fluctuations, settlement, or structural stress. Addressing these cracks promptly is essential to prevent further damage. One effective method for concrete crack repair is using epoxy. In this blog, we’ll explore the detailed procedure for repairing concrete cracks with epoxy and the associated time frame for a successful restoration.

Understanding the Procedure:

1. Assessment of Crack Severity:

Begin by assessing the severity of the concrete crack. Different cracks may require varying approaches, and understanding the extent of the damage is crucial for selecting the right epoxy product and application method.

2. Surface Preparation:

Thoroughly clean the cracked area to remove dirt, debris, or loose concrete particles. A clean surface ensures optimal adhesion of the epoxy. Use a wire brush, vacuum, or compressed air to achieve a debris-free environment.

3. Routing or Chiseling:

For deeper cracks, creating a wider channel using a router or chisel is advisable. This process, known as routing, provides more surface area for the epoxy to bond with, enhancing the overall effectiveness of the repair.

4. Sealing the Crack:

Before applying the epoxy, it’s essential to seal the crack to prevent the material from leaking. Use an epoxy-compatible sealant or adhesive to close the crack’s surface. This step ensures the epoxy is directed into the crack for a thorough repair.

5. Mixing Epoxy Resin:

Follow the manufacturer’s guidelines for mixing the epoxy resin. Ensure accurate proportions, and use clean tools and containers to prevent contaminants. Thorough mixing is crucial to achieving the desired strength and consistency of the epoxy.

6. Application of Epoxy:

Apply the mixed epoxy to the crack, ensuring it fills the void. Use a putty knife or trowel for precise application. Work the epoxy into the routed or chiselled area if applicable. The goal is to create a seamless bond between the epoxy and the existing concrete.

7. Smoothing and Shaping:

After filling the crack, smooth the surface with a trowel to match the surrounding concrete. Shaping the epoxy ensures a uniform appearance and prevents any sharp edges that could be prone to chipping or further damage.

Understanding the Time Frame:

1. Curing Time:

Epoxy typically has a relatively quick curing time ranging from a few hours to a day. However, the exact time can vary based on temperature, humidity, and the specific epoxy product used. It’s crucial to follow the manufacturer’s recommendations for curing times.

2. Restrictions on Use:

While epoxy may cure quickly, it’s essential to refrain from subjecting the repaired area to heavy loads or stress during the initial curing phase. Follow the manufacturer’s guidelines for foot and vehicular traffic restrictions to ensure the epoxy achieves its maximum strength.

3. Full Cure and Strength:

Although epoxy may quickly achieve a surface cure, reaching its full strength can take several days or weeks. During this time, it continues to harden and develop its structural integrity. Patience is key to allowing the epoxy to cure and provide a long-lasting repair fully.


Concrete crack repair with epoxy is a systematic process that involves careful assessment, thorough preparation, and precise application. By understanding the step-by-step procedure and the associated time frame, individuals can ensure a successful concrete restoration that not only addresses existing cracks but also enhances the overall strength and durability of the structure. Always adhere to manufacturer guidelines for the specific epoxy product chosen, as they provide valuable insights into optimal application and curing conditions.