Lowe's Home Improvement

Seal an Asphalt Driveway

Excessive heat, ultraviolet rays and substances such as salt, oil, gas or grease take their toll on an asphalt driveway. Without protection, your driveway can become a lumpy, crumbling mess. With a little effort, you can prevent these problems by sealing, protecting and maintaining your driveway.

Tools & Materials

Product costs, availability and item numbers may vary online or by market.

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Preparing Your Driveway for Asphalt Sealing

How to Seal an Asphalt Driveway

No-mix driveway sealer is used directly out of the pail with no blending or mixing required.  Before applying driveway sealer, get familiar with your product and how to use it. In general:

  • Asphalt sealers cure in just a few hours, but the driveway cannot be used for vehicle traffic for 24-48 hours.
  • The ambient temperature outside must be a minimum of 60°F or more within a 24 hour period before and after making your repair.
  • Do not apply if rain is imminent or forecasted within 24-48 hours before or after application.
  • If you live in an area prone to morning dew or fog, make sure to stop the coating process before 3 pm to prevent wash-off.
  • Two thin coats (rather than a single thick one) dry more evenly and provide a better looking finish.
  • Do not apply driveway sealer on a driveway that slopes more than 20 degrees.
  • Allow six months for repairs such as crack or pothole filler to fully cure before sealing.

Asphalt sealers are not intended for use on concrete. There are many products available for concrete and masonry. Check the label to make sure you're using the right sealant for your job.

Applying Asphalt Driveway Sealer

Each pail of driveway sealer covers 300-350 square feet. The permeability of your pavement affects coverage. Be sure to measure and buy accordingly.

Step 1
Fully clean off any debris or dirt on your pavement surface.  The surface must be completely clean before applying sealer.

Step 2
Trim shrubs and edge along turf areas. Tape all surfaces adjacent to the pavement you do not want sealed.  This includes concrete surfaces, brick, gutters, or anything that might come in contact with the sealer. For neater edges, you can use a dry brush to apply driveway sealer.

Step 3
Open the bucket and begin to pour the sealer from one side of the pavement to the other pouring a six-inch wide bead of sealer. Start at your garage or carport and work toward the street.

Step 4
Using a driveway squeegee tool, spread a very thin layer of sealer moving down the length of the driveway. Apply the second coat from one edge to the other in a perpendicular manner. Make sure the coats overlap and cover 100% of the asphalt surface.

Good to Know

Sealing is a non-stop process and should be fully completed once started. After pouring sealer onto the pavement, it is important to continue to spread the sealer to prevent the material from drying too quickly. Plan ahead and place full pails of sealer every 350 square feet (or slightly larger than a standard parking space) to avoid crossing over the newly sealed surface.