How to Use Concrete Crack Filler How to Use Concrete Crack Filler

Wherever there is concrete, cracks will form at some point during its life. In some cases it may add character, in other cases you may need to use concrete crack filler to repair the crack.

Before using the concrete crack filler, you need make sure that the area that you are going to fill is clean of debris. If it is an outdoor project, the weather needs to be dry and sunny.

You need rubber gloves, a sponge and paper towels for this project. Fill the crack with one layer of the concrete crack filler, to about 1/4 inch thick. If you need to add more than one layer, you will need to wait at least a half-hour between layers.

Let it dry thoroughly before putting any pressure or weight on the repaired sections of the concrete.


  • Do no squeeze the liquid out; this will create bubbles in the filler.
  • When repairing a tiny crack, let the liquid drip out on its own and work quickly to fill the crack.
  • If you accidentally spill some of the filler onto an area that does not need to be repaired, immediately clean it off with a damp sponge.
  • Use the paper towels to clean up any drips on the edge of the bottle.

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