How to Seal a Concrete Driveway: Expert Tips for Longevity

by Alex Gaspar
6 min read

Sealing your concrete driveway is an important step in maintaining its appearance and extending its lifespan. By sealing your driveway, you protect it from water, oil stains, and harsh weather conditions, helping it last longer and look better. This simple process can save you from the costly repairs and replacements that come with neglected driveways.

Before you start, you need to clean your driveway thoroughly. Removing all debris, stains, and any previous sealant is an important first step in the cleaning process. Once cleaned, choose a high-quality sealer and apply it carefully using a garden sprayer or roller, evenly covering the entire surface.

Key Takeaways

  • Start by cleaning your concrete driveway thoroughly.
  • Apply a high-quality sealer evenly with a sprayer or roller.

Sealing protects your driveway from stains and weather damage.

Residential Concrete Driveways - Onyx Landscapes - Portland OR

Preparing Your Concrete Driveway for Sealing

Before sealing your concrete driveway, you need to clean the surface, repair any cracks or damage, and choose the right sealer. Each step is vital to help the sealer adhere properly and last as long as possible.

Cleaning the Surface

Start by removing any dirt, oil, grease, and debris from the surface. A clean surface allows the sealer to penetrate better.

  1. Sweep the driveway: Use a broom to sweep away loose debris.
  2. Pressure wash: A pressure washer can help remove stuck-on grime and stains.
  3. Apply a concrete cleaner: For tough stains, apply a concrete cleaner or degreaser. Follow the manufacturer’s instructions.

Make sure the surface is completely dry before moving on to the next steps.

Repairing Cracks and Damage

Inspect the driveway for any cracks or damage. Repairing any damage creates a smooth and even finish when you apply the sealer.

  1. Clean the cracks: Use a vacuum or stiff brush to remove debris from the cracks.
  2. Fill large cracks: For cracks deeper than 1/2 inch, insert a foam backer rod first.
  3. Apply crack filler: Use a crack filler and follow the manufacturer’s instructions. Smooth out the filler for a level finish.

Allow the repaired areas to dry completely before applying the sealer.

Choosing the Right Sealer

Selecting the right concrete sealer is crucial. There are several types available, each with its own benefits.

  1. Penetrating sealers: These sealers soak into the concrete and provide protection from within. They are durable and work well for harsh weather conditions.
  2. Acrylic sealers: Available in both water-based and solvent-based forms, they create a thin film on the surface and are good for decorative finishes.
  3. Water-based sealers: They are low in VOCs and easier to clean up.
  4. Solvent-based sealers: These offer a higher-gloss finish but are more challenging to apply and clean.

Read the labels and choose a sealer that fits your driveway’s needs and the climate in your area.

Concrete Driveways Guidelines - Onyx Landscapes - Portland OR

Applying the Sealer

Applying sealer to your concrete driveway extends its lifespan and boosts curb appeal. Here, you’ll learn effective techniques for applying the sealer, curing, drying times, and essential maintenance tips.

Sealer Application Techniques

To start, gather your tools: a garden sprayer, paint roller, or brush. First, check that the concrete surface is clean and dry. Use a garden sprayer or paint roller to apply the first coat. Spread the sealant evenly with overlapping strokes to avoid buildup.

Wear gloves for protection, especially if the sealer has high VOC content. For deeper protection, apply a penetrating sealer. Apply at least two coats for best results. Allow the first coat to completely dry before applying the second coat.

Curing and Drying

Curing and drying are vital steps for lasting results. After applying the initial coat, allow 24 to 48 hours for drying in optimal weather conditions. Protect the driveway from foot traffic, rain, and debris during this period.

The second coat also needs similar drying time. It’s crucial not to rush, as improper drying might lead to weaker protection. The curing process strengthens the bond of the sealer to the concrete, providing long-term durability.

Maintenance and Resealing

Regular maintenance will help your driveway retain its appearance over time. Perform inspections twice a year to check for cracks or wear. Clean the surface regularly to prevent stains from penetrating the sealant.

Resealing is typically required every 2 to 3 years. Before resealing, clean the driveway thoroughly to help the new layer adhere properly. Applying a fresh coat will restore its shine and extend its life.

Remember that timely and consistent maintenance equates to a well-preserved driveway. Onyx Landscape has the hands-on experience to clean and reseal concrete driveways, boosting curb appeal for homes of any size. Reach out to our team or fill out our contact form to learn more about our driveway resealing services.

What are the advantages and disadvantages of sealing a concrete driveway?

Sealing your driveway protects it from water, oil, and stains. It can extend the life of your concrete. On the downside, it can make the surface slippery when wet.

What is the typical cost for sealing a concrete driveway?

The average cost of sealing a concrete driveway ranges from $0.15 to $0.25 per square foot. Factors like the type of sealer and the size of the driveway can affect the price.

Which concrete sealer product is recommended for use on driveways?

Penetrating sealers are often recommended for driveways. They provide deep protection and don’t alter the appearance of the concrete. Brands like Foundation Armor and Siloxa-Tek are popular options.

What steps should be taken to seal concrete driveway cracks effectively?

Clean the cracks thoroughly, removing any debris. Apply a crack filler or patching compound. Allow it to dry completely before applying the sealer over the entire driveway surface.

How often should a concrete driveway be resealed?

It is recommended to reseal a concrete driveway every 2 to 3 years. This schedule helps maintain protection against weather and wear.

Is it advisable for homeowners to seal their own concrete driveways, and if so, how?

Yes, homeowners can seal their own driveways. Start by cleaning the surface thoroughly. Apply the sealer with a roller or sprayer. Allow it to dry according to the manufacturer’s instructions. Follow all safety guidelines.