Restoration Specialists, Inc dba RSI Builders | 6120 Red Rock St. Las Vegas, Nv 89118 | MAP

How to repair small concrete crack

Concrete Crack

1. Clean the Floor

Before using any concrete filler, make sure there’s no oil or dirt still on the floor. If there is, use a cleaner that cuts grease. This will help the filler bond to the cement.

2. Brush and Vacuum

Once you’ve keyed the crack, it’s important to clean up and get rid of dust and debris. Use a whisk broom then vacuum the crack thoroughly. 

3. Spread Concrete Patch

To use the concrete filler, cut the nozzle off the bottle and slowly fill the cracks (image 1). If you’re using mixed concrete patch, mix according to the manufacturer’s direction and then trowel the patch into the crack (image 2). Check the cracks in a few minutes to see whether the filler has settled. You may have to add some more if it doesn’t look tight. Use a trowel to smooth out the cracks

4.Seal the Patch and Concrete

 After patching the concrete, it’s a good idea to seal it. Concrete easily absorbs stains, and sealing will prevent that. There are more than a few products available for concrete sealing, but a heavy-duty water-based polyurethane is a good choice. If the floor has a rough finish, apply the polyurethane with a broom or brush using the bristles to work the sealer into the rough surface. With a smooth surface use a roller.

The beauty of water-based polyurethane is that it dries quickly, so you can put on a second coat just a few hours after the first. Also, water-based polyurethanes don’t smell as bad as other types of sealer. In heavy traffic areas, it’s a good idea to apply three or four coats.

Restoration Specialists, Inc dba RSI Builders 6120 Red Rock St. Las Vegas, Nv89118

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