New asphalt goes through two stages: drying and curing. Drying typically takes 24 to 72 hours, after which the surface is solid enough for light use like walking or careful driving. While you may be able to park on it after 72 hours, the surface is still soft and should be treated gently. Full curing is a much longer process, taking anywhere from 30 days to a full year for the asphalt to reach maximum strength. During this extended curing period, the asphalt is susceptible to damage from heavy vehicles, sharp objects, and high temperatures. Factors like weather, the specific asphalt mix, and application thickness all influence drying and curing times. For the most accurate timeline and to ensure the longevity of your new asphalt, it is always best to consult with your installation contractor for their specific recommendations.
Yes, most professional repair services include the application of sealants for weatherproofing or waterproofing. This process helps protect the repaired area from moisture, weather damage, and future wear, which can improve durability and energy efficiency. It is always best to confirm with your contractor or service provider if sealing is included in their repair process.
No. You cannot use asphalt products on concrete driveways. To seal a concrete driveway, use acrylic, epoxy, polyurethane, silane, siloxane, and silicate sealers or deep penetration sealers made specifically for concrete. Meanwhile, asphalt sealers contain refined coal tar (asphalt emulsion), water, sand, clay, polymers, and additives and are incompatible with concrete’s surface texture and higher density.
You should plan on sealing your driveway about once every five years, although you should plan to do it once every three years if your area experiences frequent rain or snow. Sealing your driveway protects it from moisture, UV rays, and chemicals from your car, like motor oil and antifreeze. If you find that your driveway stains easily or appears to be cracking or fading, you may want to schedule a sealing service regardless of when you last sealed it.
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.
The Ledger, MT homeowners’ guide to driveway sealcoating
From average costs to expert advice, get all the answers you need to get your job done.
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