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.

How to Clean and Etch a Concrete Surface

  1. 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.

  2. 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.

  3. Step 3

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

  4. 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.

  5. Step 5

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

  6. 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.

Suggested Tools & Supplies
  • Broom (Stiff Bristle)

  • Brush 5.1 - 6.4 cm (2"-2½")

  • Chemical Resistant Gloves

  • Hose

  • High Pressure Nozzle

  • Mop

  • Protective Apparel

  • Rags

More How-tos
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