Ortmann Concrete: How To Apply Concrete Sealer to A Concrete Surface

by Ortmann Concrete | Jan 1, 2025 | Commercial Concrete, Residential Concrete, Sealers

Have a new driveway that you’re proud of and want to protect it against wear and tear but you aren’t sure how? What about an older driveway that’s in good repair, but you want to protect it from the elements? We’re glad you stopped by. The team at Ortmann Concrete has worked with concrete for decades and we know how important protecting your investment is.

Sealing concrete is essential for protecting your driveway, patio, or other concrete surfaces from wear, weather, and stains. Knowing how to apply concrete sealer correctly ensures that your concrete surfaces remain durable, attractive, and easy to maintain. Sealing concrete might sound complex, but with a few straightforward steps and some helpful tips, you can achieve great results. Here’s a guide from Ortmann Concrete to help you protect your surfaces for years to come.

Choose the Right Sealer

The first step in learning how to apply concrete sealer is choosing the right type. Concrete sealers come in two main types: penetrating and film-forming.

  • Penetrating sealers soak into the concrete, forming a barrier below the surface. They are typically used for outdoor concrete as they provide protection from water, salts, and other chemicals without altering the appearance.
  • Film-forming sealers (like acrylic or epoxy) sit on top of the surface, creating a protective layer that can also add a shiny finish. These are often used indoors or on decorative surfaces where appearance is a priority.

Once you've selected a sealer that meets your needs, you’re ready to begin the application process.

Clean the Surface Thoroughly

A crucial step in how to apply concrete sealer is ensuring that the surface is dry. Remove any dirt, leaves, or debris from the concrete surface with a stiff-bristled broom. Consider power washing to remove buildup, grease, or other residues. If using a cleaner, rinse the area well to ensure no residue is left behind, as it can prevent the sealer from bonding to the concrete.

Allow the surface to dry completely before proceeding. Moisture trapped under the sealer can lead to a cloudy appearance or hinder the effectiveness of the seal.

Test for Moisture

If it’s a new concrete surface, you’ll need to ensure that it’s completely cured. To do this, tape a small plastic sheet over the surface and leave it for 24 hours. If moisture accumulates beneath the plastic, the concrete needs more time to dry. Sealing too early can trap moisture, leading to potential issues with the seal’s durability and appearance.

Apply the Concrete Sealer

For best results, use a sprayer or a roller to apply the sealer evenly across the concrete. Using a sprayer can speed up the process for larger areas, while a roller is ideal for more precise application on smaller surfaces. When applying:

  • Start with thin coats to avoid puddling, which can result in uneven curing.
  • Work in small sections to maintain an even layer, overlapping slightly as you go.
  • For areas prone to wear, consider applying a second coat after the first has dried.

Allow the Sealer to Dry

Drying times vary by product, so check the manufacturer’s instructions for guidance. In general, it’s best to keep foot traffic off the concrete for at least 24 hours. Heavy items and vehicle traffic should stay off for up to 72 hours to ensure the seal is fully set and will stand up to normal daily use.

Regular Maintenance

To keep your concrete in top condition, inspect it regularly and reapply sealer as needed, typically every two to three years for high-traffic areas. For outdoor surfaces exposed to severe weather, more frequent reapplication may be necessary.

Final Thoughts on How To Apply Concrete Sealer

Knowing how to apply concrete sealer correctly can significantly extend the life and appearance of your concrete surfaces. With the right preparation, tools, and techniques, you’ll achieve a lasting, protective seal that enhances the durability and beauty of your concrete. At Ortmann Concrete, we’re here to answer any questions or assist with your concrete needs—whether it’s sealing, installation, or repair. Reach out today to learn more!

Ortmann Concrete Incorporated helps homeowners and small business owners every day, making high-quality custom concrete steps, walkways, stairs, driveways, fire pits, retaining walls, pool decks, patios, garages, tabletops, countertops, and more. We are a full service residential and commercial flatwork company.

OCI is locally owned and operated. And we are a member of the American Society of Concrete Contractors, and certified by the American Concrete Institution. Our company is the proud recipient of the Angie’s List Super Service Award. We are proud that our reputation for quality has been recognized by customers on three different platforms: Facebook, Angi’s List, and Google Reviews.

Give us a call so we can come out to talk to you about your vision for your home!

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