The main ingredient in this sealer is a by-product of the oil-refining process. Most likely they will recommend one of two types of sealer. They know what type of sealer is best for your pavement condition and region of the country. Rely on your pavement maintenance contractors to make this decision. Sealcoating is like “WATER-PROOFING” your pavement This provides a consistently high level of protection for the pavement, ensuring that it will last longer. A good rule of thumb is to have the contractor sealcoat your driveway/parking lot every two or three years. Sealcoating is a protective film that will wear away, probably in some high-wear areas such as wheel paths, over time. SEALCOAT YOUR DRIVEWAY/PARKING LOT EVERY 2 OR 3 YEARS: Two coats of sealer are recommended-the added cost is minimal compared to the extra protection. If sealer is applied before the pavement is cured, the oils in the asphalt will work their way to the surface and the sealer won’t adhere properly. Asphalt concrete needs between 60 to 90 days to fully cure, and contractors should wait that long before sealcoating. SEALCOAT NEW ASPHALT WITHIN THE FIRST YEAR OF CONSTRUCTION:īut wait at least 90 days. A smoother surface is easier to sweep, shovel and wash. Because sealcoats fill the surface voids, they make the surface much smoother. Sealcoated pavements also are easier to clean and maintain. Sealcoating brings back the dark black color of the original pavement, making it look and wear like new. SEALCOAT ENHANCES PAVEMENT APPEARANCE AND EASES MAINTENANCE: By filling surface voids, sealcoating also reduces the depth to which oil or gas can penetrate the pavement. Asphalt sealers, which normally would be soluble in gas or water, usually include additives that enable them to resist such leaks. Coal tar sealers aren’t soluble in gas or oil so they prevent damage caused by leaks or spills. Gasoline or oil will soften asphalt concrete. This is especially important on driveways/parking lots where cars are often parked or worked on. ![]() Regularly applied sealcoats prevent ulraviolet rays from penetrating the pavement. They break down the links between carbon bonds in the asphalt, causing the pavement to crumble. ![]() These rays from the sun also cause the pavement to deteriorate. Sealcoating protects the surface and fills surface voids, reducing the pavement’s exposure to oxygen and water, and extending pavement life. The cracks enable oxygen and rainwater to penetrate the pavement, often into the subbase, weakening it and reducing pavement strength. This hardening results in a brittle surface that will eventually crack. As the pavement is exposed to oxygen, the asphalt binder (tar) hardens. Preceded by effective crack repair, sealcoating applied every two or three years can significantly extend the life of your driveway/parking lot for minimal cost.Īsphalt pavement begins to deteriorate almost as soon as it’s placed. Without aggregate, a sealed asphalt surface can be slick. He can also include aggregate in his sealcoat, which will make the sealer last longer and assure an abrasive surface for car and foot traffic. He knows the proper techniques to prepare the pavement and apply sealer, he owns and knows how to use the necessary tools, and he also uses a top-quality professional sealing product.
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