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Yes, you can seal asphalt before it’s fully cured but you should wait to do so until at least three months after installing it. Otherwise, the seal coat can trap the asphalt’s oils and chemicals, preventing it from fully hardening. This can lead to a weaker surface that’s vulnerable to damage. But if you wait at least three months, applying a seal coat can extend its life by protecting it from water, UV rays, and other damaging elements.

The main difference between asphalt and blacktop is that asphalt has a lower ratio of bitumen—a low-grade tar-like crude oil—than blacktop. While blacktop is heated to 300 degrees or more, hot-mix asphalt is heated to a lower temperature, typically between 275 and 300 degrees Fahrenheit. Consult an asphalt driveway professional about which type of material is the best fit for your future asphalt driveway.

DIY sealants exist, but professional application ensures uniform coverage and long-term durability.

Maintaining a driveway depends on the material your driveway is made of. Concrete and asphalt should be sealed to protect against water and freeze-thaw cycles. Cracks and expansion joints should be filled with a flexible polyurethane caulk or asphalt sealer. Before you apply a sealant to your driveway, consider pressure washing the surface. It will take off any loose sealant and any grime that might have caused a stain. Sealing over dirt and stains will trap it under the sealer.

If you live in colder climates, consider using sand rather than salt to de-ice. Sand helps melt the snow and ice without speeding up the freezing and unthawing process of your driveway, which helps prevent cracks from forming from the constant fluctuation of temperatures.