March 19th, 2018

Winter can be tough on concrete. Repetitive freezing and thawing can cause spalding–a term that describes the flaking off of the finished surface of concrete.

While using a sealer can help prevent this process, it isn’t always avoidable. Fortunately, our friends at Concrete Coatings have developed a simple solution for repairing areas affected by spalding.

The Concrete Coatings BroomTek kit has been designed with just this problem in mind. You can see the Demo Video here, but this post will cover the step-by-step process to get your spalding concrete looking beautiful again.

The BroomKit acts much like other overlay products, but the process has been simplified for easy application.

  1. Ensure that the surface area of the spald and the surrounding areas are totally clean. We recommend that the entire work be thoroughly power washed and allowed to dry before anything else.
  2. If the concrete has been either polished or sealed, use an etching product to ensure a proper bond.
  3. Following the mixing procedures, ensuring to allow the mixture to stand 3-5 minutes after the first mix. The standing period allows the mixture to go through the chemical processes necessary for a proper bond. After standing, remix and check for smooth consistency.
  4. Apply the mixture to the affected areas using a squeegee or trowel. Smooth it with a stiff-bristle broom to match the surface level of the concrete.
  5. Allow 4-6 hours dry time before walking, 24 hours for sealing, and 2-3 days for driving traffic (after sealing). All these guidelines vary depending on ambient temperatures (lower temperatures require more drying time).


  • If the spalding areas are deeper than 1/4″ deep, BroomTek may not be the proper patching product for you. Contact us for more product recommendations.
  • Be sure to apply your sealer above 50°F and below 90°F.