Driveway Sealcoating questions, answered by experts
Though they may look similar, tar and bitumen come from different sources. Bitumen is a petroleum product—extracted during crude oil refining—and is mostly made up of hydrocarbons. Tar comes from burning down organic materials like coal or wood. Bitumen is strictly oil-based, while tar is a mix of compounds from natural sources. Both are used as binders in paving; however, bitumen is the standard for today’s asphalt. Tar use has mostly faded out of road construction.
It is not recommended to seal brand-new or uncured asphalt immediately after installation. You should wait at least three months to allow the asphalt time to cure. Applying a seal coat too soon can trap the asphalt's oils and chemicals, preventing it from fully hardening. This can lead to a weaker surface that is more vulnerable to damage. After the initial three-month curing period, applying a seal coat can extend the asphalt's life by protecting it from water, UV rays, and other damaging elements.
Driveway sealcoating costs around $500 on average, or between $1.25 and $1.50 per square foot for materials and labor. Most homeowners pay between $250 and $800 for this service. Your project price will depend mostly on the size of your driveway, the type of sealant, how much pressure washing or treatment is required before sealing, and the number of coats of sealant applied to your driveway. Most sealants come in 5-gallon or 55-gallon units, with up to 500 square feet of coverage per 4 gallons.
If your asphalt driveway shows cracks, potholes, or standing water, it’s likely time for a repair. Cracks, big or small, let water seep in, weakening the base and causing further damage. Potholes are a sign of this weakening process in action while standing water suggests your driveway has poor drainage, which can cause even more issues. You may also see warping or buckling—a sign of a compromised base layer—or sinking pavement. Spotting these signs early on can help you save yourself a bigger repair bill in the future.
Hot-pour sealants have an asphalt cement base that might also include rubber and other materials to allow the seal to flex in hot or cold temperatures. Asphalt emulsion sealants are not heated but are liquid applications that use water and an emulsifying agent to allow the asphalt and water to mix.
The Stuart, NE homeowners’ guide to driveway sealcoating
From average costs to expert advice, get all the answers you need to get your job done.
The cost of a tar and chip driveway falls between gravel and asphalt. Is this unique process the happy medium you've been looking for? Let's take a look.
The average driveway coating takes between 30 minutes and eight hours to dry, but weather and sealant type can influence the dry time. Read on to learn more.
