Driveway Sealcoating questions, answered by experts
It is not recommended to seal brand-new asphalt immediately. You should wait at least three months after installation to allow the asphalt time to cure properly. Applying a seal coat too soon can trap the asphalt's oils and chemicals, preventing it from fully hardening. This can result in a weaker surface that is more susceptible to damage. After the three-month curing period, sealing the asphalt is beneficial as it can extend its lifespan by protecting it from water, UV rays, and other damaging elements.
Maintaining a driveway depends on its material. For concrete and asphalt, it's best to clean the surface thoroughly twice a year with a stiff broom and a pressure washer to remove accumulated dirt and debris. Sealing the driveway is crucial to protect it from water damage and freeze-thaw cycles. Before applying a sealant, pressure wash the surface to remove any loose sealant, dirt, or stains, as sealing over them will trap them. Any cracks or expansion joints should be filled with a flexible polyurethane caulk or asphalt sealer. In colder climates, use sand instead of salt for de-icing. Sand helps melt snow and ice without accelerating the freeze-thaw process, which can cause cracks.
Regular sealing, crack filling, and professional inspections help extend pavement lifespan and prevent costly repairs.
The three most common types of asphalt are hot asphalt, MC cold mix, and UPM asphalt.
Hot asphalt is used most often for paving and patching roadways while it’s hot and workable. MC cold mix asphalt cures more slowly than hot asphalt, but it can be used for temporary patches and repairs in low-traffic areas. UPM is also used cold, but it can be used as a longer-term fix, usable in almost any conditions at almost any temperature.
When asphalt cures, it typically changes from a very dark black hue to a lighter, more matte gray color. Cured asphalt also won’t be tacky or sticky to the touch or emit any odors from the asphalt mix. Additionally, the surface of fully cured asphalt won’t deform under any pressure.
The Baker, MT 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.