Published at Tuesday, February 05th, 2019 - 22:36:42 PM. driveway. By Nannette Courtois.
Sealcoating a pavement area approximately 60 days after the initial asphalt application will protect it from weather and car fluid damage in the years ahead, lengthening the overall life of your paving. Driveway sealer is composed of a coal-tar emulsion, sometimes fortified with rubber or silica sand for increased durability. A paving contractor will apply sealer either by brush or by spraying it over the area; the method may depend upon the size of the area to be sealed, or upon the individual contractor’s preference.
If you want to seal a driveway or parking lot that is several years old and has already begun to deteriorate, the paving contractor must first repair the damaged asphalt. This may involve filling any holes or cracks in the pavement, as well as smoothing out rough areas. It’s also a good idea to clean up any oil stains before applying sealcoating, as once they’re sealed in, those stains are permanent. In general, you should apply a new coat of driveway sealer every two to three years. Resealing and minor repairs will almost always be less expensive than having to completely replace the pavement.
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