Oil-based sealers penetrate and rejuvenate aging asphalt, lasting up to 6 years with excellent weather and chemical resistance. However, they emit high Volatile Organic Compounds (VOCs). Water-based sealers sit on the surface, dry quickly, and emit low VOCs, but require reapplication every 2 to 3 years.
The best driveway sealer depends on your paving material. For asphalt, water-based asphalt emulsion is the top overall choice for homeowners due to its eco-friendliness, easy cleanup, and balance of cost and durability. For concrete, penetrating silane/siloxane sealers are best, as they absorb deeply without altering the surface’s natural appearance.
Common driveway sealing mistakes include applying sealant over an unclean or damp surface, sealing in direct sunlight or extreme temperatures, applying the product too thickly, and driving on the surface too soon. These errors lead to peeling, cracking, and premature sealant failure.
To seal a 2,000 square foot driveway, you can expect to pay between $1,500 and $3,000 for a professional job, or about $400 to $800 if you tackle it yourself.
The best time of year to seal a blacktop (asphalt) driveway is during late spring to early fall when temperatures consistently range between 55°F and 85°F. This window ensures proper adhesion and curing, provided there is no rain in the forecast for at least 24 to 48 hours.
Apply two thin coats of sealer rather than one thick one. Applying a single thick layer traps moisture and ruins the curing process. Two coats ensure even coverage and maximum protection.
A 20x20 (400 square foot) asphalt driveway typically costs between $2,000 and $5,000 fully installed. This breaks down to an average of $5 to $12+ per square foot, which covers materials, base preparation, and professional labor.
Five gallons of driveway sealer typically covers between 250 and 500 square feet. The exact coverage depends heavily on the condition and porosity of your asphalt.
Blacktop (asphalt) driveways should generally be resealed every 2 to 3 years. Sealing too frequently (such as every year) can cause the layers to build up, crack, and peel.
Yes, sealing concrete is an excellent DIY project. It is highly manageable with the right tools and prep work. You will roughly cut the project's cost in half compared to hiring a professional, though it will take a few hours of your time.
Sealing a driveway is often considered pointless if it is applied over existing structural damage, used on properly installed, modern asphalt, or done without adequate cleaning. While it provides a temporary aesthetic boost, it fails to fix underlying issues and often requires continuous, expensive reapplication.
Rain 6 hours after sealing can disrupt the curing process, as most driveway sealers require 24 to 48 hours to dry completely. While the sealer won't wash away entirely, the rainwater can dilute the top layer, causing white haze, streaks, bubbling, or patchy spots.
Any temperature below 50°F (101010°C) is too cold to seal a driveway. Both the air and the pavement must be at least 50°F and rising, with temperatures expected to stay above that threshold for 24 to 48 hours to allow the sealer to properly cure and adhere.
Applying driveway sealer is best done using the "squeegee and brush" method, which gives you the highest control over thickness and prevents messy puddles. Always check the weather first: ensure temperatures are consistently above 50°F with no rain in the forecast for at least 48 hours.
Neither method is universally "better," but generally, brushing/squeegeeing is better for durability and filling cracks, while spraying is better for speed and covering large, smooth areas.
Driveway sealer typically peels because the sealant failed to bond with the underlying surface. This most commonly happens due to trapped moisture, poor surface preparation, coats applied too thickly, or applying the sealer over old, un-stripped layers of past sealant.
Two inches of asphalt typically lasts 5 to 10 years under regular residential use. Because this thickness is relatively thin, it is highly susceptible to cracking and potholes under weight and weather changes, often requiring frequent repairs or an overlay.
Having a professional reseal (or sealcoat) an asphalt driveway typically costs between $280 and $860 for an average-sized driveway, with the national average landing around $570. On a per-square-foot basis, you can expect to pay between $0.15 and $0.45.
Below are general guidelines for applying sealer based on a typical application scenario. Total of 2 coats – average coverage around 50 square feet per gallon (or 5 square yards).
Yes, you can absolutely seal coat your driveway yourself. It is a highly satisfying DIY project that can save you around $200 to $800 in labor depending on the size of your driveway. However, it is labor-intensive and requires a full weekend of prep, application, and drying time.
The best time of year to seal concrete is late spring to early fall. During this window, days are dry, and temperatures are consistently between 50°F and 85°F. Mild, dry conditions allow the sealer to bond properly and cure without bubbling or peeling.
A 5-gallon bucket of driveway sealer typically weighs between 50 and 60 pounds (about 23 to 27 kg).
Paving a 1,500-square-foot driveway typically costs between $𝟔,𝟎𝟎𝟎 and $𝟐𝟐,𝟓𝟎𝟎 total, depending on the material you choose. Expect to pay $𝟒 𝐭𝐨 $𝟏𝟓 𝐩𝐞𝐫 𝐬𝐪. 𝐟𝐭. fully installed.
The best time of year to pave asphalt is during the spring and summer months because the best temperature for hot paving is generally 70 degrees Fahrenheit or higher. It's possible to lay asphalt at temperatures as low as 50 degrees, but doing so isn't likely to bring about the best results possible.
The cheapest driveway option is gravel, which costs about $1 to $3 per square foot, making it the most affordable and DIY-friendly choice. Other budget-friendly alternatives include recycled asphalt and poured concrete.