How-to Prepare Uncoated Concrete for Sealers | Behr

Preparation of Uncoated Concrete for Sealers

A great looking finish begins with the right start. Following the proper prep procedures will dramatically affect the look and longevity of your finished project.

For Best Results:

New concrete must cure for 30 days before applying any floor treatment.

For your safety, please wear protective clothing, eye goggles, and acid-resistant rubber gloves and footwear.

Suggested Tools & Supplies
  • Broom (Stiff Bristle)
  • Brush (2"-2½")
  • Chemical Resistant Gloves
  • Hose
  • High Pressure Nozzle

  • Mop
  • Protective Apparel
  • Rags

How to Clean and Etch a Concrete Surface

  • Step 1

    Make sure the surface is clean. Wipe up all oil and grease spills. Sweep and scrape away all dirt and loose contaminants with a broom.

  • Step 2

    If the surface is new or uncoated, use a product to clean and etch the surface. Use a plastic watering can to evenly distribute the product. Spread the product with a stiff bristled, non-metal brush or broom. Allow the product to stand for 10-20 minutes.

  • Step 3

    Using a stiff bristled, non-metal brush or broom, vigorously scrub the concrete surface. DO NOT allow the surface to dry.

    TIP: Heavily stained areas or older stains may require additional applications.

  • Step 4

    Thoroughly rinse the surface with clean water using either a garden hose with a high-pressure nozzle or a pressure washer. Prevent the rinse solution from entering the storm drains.

  • Step 5

    Remove excess water with a non-metal squeegee or mop.

  • Step 6

    Allow the surface to dry. The surface is ready for priming when it feels like medium grit sandpaper and no residue or loose concrete remains.

    TIP: To avoid adhesion issues, ensure the surface is clean by wiping your fingers over the surface to check for dust. If residue is present, repeat the rinsing step.

ADDITIONAL RESOURCES
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What Product Do I Need?
BLACK
BLACK
What sheen do I need?
8 Oz. Sample
1 Gallon
1 Quart
5 Gallon
The following product(s) is required to properly prep uncoated and previously coated concrete surfaces.
Required product
BEHR PREMIUM ALL-IN-ONE WOOD CCCC
$0.00
The following product(s) is required to properly prep uncoated and previously coated concrete surfaces. Only available in store at Home Depot.
Required 3rd party product
BEHR PREMIUM ALL-IN-ONE WOOD CCCC
The 9 in. x 1/4 in. Polyester Adhesive Roller Cover has a hard texture, making it ideal for applying all types of adhesives to smooth surfaces. It can be used for stippling and applying sand paints.
The following product(s) is recommended when a topcoat clear finish is desired.
$0.00
The Home Depot logoSold Exclusively at The Home Depot