After you apply asphalt driveway sealant you should stay off of it until it dries so that it will absorb into the asphalt. The amount of time it takes for the sealer to dry will vary greatly from one brand to the next, so you should look at your product’s directions for specifics.
General Drying Times
Generally, asphalt sealers can take anywhere from 30 minutes to 24 hours to dry, though drying times average between 4-8 hours.
The amount of sunlight that's shining on the asphalt will also impact sealer drying times. If there is a lot of sunshine, creating warm, dry temperatures, the sealant will dry faster than if it is colder with high humidity.
Tricks for Faster Drying Times
To get your driveway sealer to cure faster, make sure that your chosen product isn’t pooling or creating puddles. You can ensure this by using thinner coats of sealant. In addition, you can set up large fans to blow on the driveway to make the sealant dry faster.