Concrete Surface Preparation


Proper concrete surface preparation is crucial for the success of any flooring project, whether it’s decorative concrete, polished concrete floors, or industrial coatings like metallic epoxy or urethane cement. This blog post, based on Duraamen’s instructional video series, highlights the key steps and considerations in preparing a concrete surface to ensure optimal adhesion and performance of the flooring system.

Importance of Concrete Surface Preparation

  • Foundation for Success: Ensures that flooring systems adhere properly and last longer.
  • Prevents Failure: Reduces the risk of delamination, peeling, and other common issues.
  • Customization to Flooring Needs: Different types of flooring require specific surface profiles, as outlined by the International Concrete Repair Institute (ICRI).

Steps in Concrete Surface Preparation

  1. Assessing the Surface: Evaluate the concrete to determine the required Concrete Surface Profile (CSP). This profile varies from CSP 1 (smooth) to CSP 10 (coarse), depending on the thickness of the overlay.
  2. Cleaning and Repairing: Remove all contaminants and repair significant damage such as cracks and chips using suitable fillers and repair products.
  3. Profiling the Surface: Utilize mechanical means such as grinding, shot blasting, or acid etching to achieve the desired surface texture.
  4. Testing and Verification: After profiling, test the surface to ensure it meets the necessary CSP for the flooring product to be applied.

Tools and Techniques

  • Mechanical Profiling: Tools such as diamond grinders, shot blasters, and buffing machines are essential for effectively preparing the surface.
  • Chemical Profiling: In some cases, gelled acids are used to etch the surface lightly, providing the necessary texture for thin overlays.


  1. Why is concrete surface preparation important for flooring projects?
  • Proper preparation prevents flooring failures by ensuring good adhesion and compatibility between the concrete substrate and the flooring system.
  1. What is a Concrete Surface Profile (CSP) and why is it necessary?
  • CSP is a measure of the surface texture of concrete and is crucial for determining the level of adhesion for coatings. Different CSP levels are required for different types of coatings.
  1. Can I prepare a concrete surface without professional equipment?
  • While basic cleaning can be done manually, professional equipment like grinders and shot blasters are recommended for adequate surface preparation, especially for commercial projects.
  1. What should I do if my concrete surface has extensive damage?
  • Extensive damage should be repaired with appropriate concrete repair products before any surface preparation techniques are applied to ensure a smooth and successful application of the flooring system.

By following these guidelines, you can effectively prepare a concrete surface for almost any type of flooring system, ensuring durability and aesthetic appeal. Proper preparation is the key to a successful flooring project and should never be overlooked.

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