What's the best temperature to seal a driveway? The ideal conditions for application are during the day when pavement and ambient temperatures are at least 50°F and rising, and no rain is forecasted for 24 hours. If these recommendations are not followed, the procedure will not yield desired results.
Sealcoating anytime after October 31st, the nighttime temperatures fall below 40 degrees. This could cause problems with a water based asphalt sealer. Pavement sealers are best applied when the temperatures are a MINIMUM of 55 degrees and RISING and do not fall below 50 degrees for 48 hours after application.
4: Perfect time of year
It's best to seal your driveway in the fall or the spring because the temperatures tend to be more moderate. In order to put seal coating on, the outside temperatures need to be above 50 degrees Fahrenheit. In addition, the weather needs to be free of heavy rain for 24 hours.
Denny says spring and summer are the best times to seal concrete, or when the temperature is above 50 F. Avoid sealing either type of driveway as soon as it's installed, Jordan says. Instead, wait at least six months to give your driveway time to cure and settle. If you do it too soon, the driveway may soften.
Driveway sealer needs to be allowed 4–8 hours to dry before rain. Longer cure times are better, as it takes upwards of 24 hours for driveway sealer to completely cure, but under good conditions, 4 hours of curing time will be enough for your new sealant to resist rain damage.
Most driveway sealer manufacturers recommend two coats with a minimum drying time of eight hours between coats, so this driveway sealing project will fill an entire weekend.
Sealing the driveway yearly can lead to unsightly hairline cracks and peeling. And concrete driveways should be sealed every four or five years to protect them from water penetration and to prolong their life.
If you've recently installed a new driveway, wait at least 90 days to a year to ensure the sealant doesn't damage the asphalt. Sealcoating a new driveway too early may trap oils within the asphalt, resulting in a driveway that is too soft or flexible. Sealcoat your asphalt driveway when the temperature is 50–90°F.
Most manufacturers recommend 50 to 90 degrees as the ideal temperature range for applying concrete sealer.
Yes, it is a necessity as you need to protect your valuable asset. If you want your driveway to last, seal coating is the way to go. Unprotected asphalt leads to cracks and potholes that can severely damage your foundation.
As it deteriorates, it loses strength. As the surface becomes more exposed, you start to develop cracks in it that allow more water and oxygen in, and your pavement will deteriorate at a rapid rate." Carter said it doesn't matter whether the smooth, black surface wears off the asphalt driveway.
No, you will not be able to use asphalt sealer once it's frozen. When asphalt sealcoating products are exposed to freezing temperatures, they lose the ability to bond properly to the surface of pavement. Properly dispose of any sealer that has frozen over winter.
Dry times for sealcoat depend greatly on the exposure to the sun and temperatures. In most cases, you can walk and drive on the driveway within 24 hours after sealcoating.
You can apply sealer at any time of day as long as the pavement temperature does not fall past 40 degrees at night. You can even apply the sealcoat during the nighttime. Many people choose to start their sealcoat project around 10 AM as the sun's temperatures begin to rise, and the humidity is not too oppressive.
A moderately-priced sealcoat costs around $90 for 5 gallons, which has a maximum 500-square-foot coverage capacity. When figuring the additional costs of sealant, you can expect to spend $1,330 for a single coat of sealant to 1,000 square feet of asphalt.
As a general rule you should seal your driveway every 1 to 3 years. More specifically, if you can see the color of the individual stones that make up your asphalt surface, you know it's time to seal it up. A few rules apply before you seal, however. For starters, never seal a new asphalt driveway.
Epoxy and urethane systems last between 5-10 years, closer to 5 if the surface experiences heavy traffic. Reactive penetrating sealers are the longest lasting concrete sealers, wearing away only if the substrate surface itself wears away.
Coal Tar Sealer
Coal tar asphalt driveway sealer is considered the standard for asphalt — in some places, that is. The preferred choice for both asphalt driveways and streets for many years, coal tar sealer is made from sticky coal tar. It can last for up to five years on a driveway.
Contractors can seal asphalt by brushing or spraying the sealer on. By brushing it on, the thickness achieved may be uneven, resulting in a difficult cure over time and an overall slicker surface. On the other hand, spraying allows the sealer to be spread out in a uniform fashion, making it cure faster.
Sealcoating your driveway starts with deciding whether to use water or oil-based sealers. Although both types have advantages, water-based sealers' shorter cure time and eco-friendliness make it the better choice in many situations.
Make sure there is no puddled water on the driveway before sealing. If the surface is too cold means the sealer will not set and cure properly.
Spray methods usually work better if the pavement is smooth and free from surface voids. As already noted, if there are voids, the sealant can be forced into them with a squeegee, but if there are no voids, the squeegee may glide too easily over the surface and leave too little sealant behind.
Prep the driveway for sealing
The last step before applying a sealer is to thoroughly clean the driveway. Start with a push broom and sweep away the heaviest debris. Then use a garden hose, or better yet, a pressure washer to rinse the surface clean of all loose dirt, sand, and grit.