When you apply seal coating to an asphalt parking lot and then regularly reapply it as part of a long-term preventative maintenance strategy, you can increase your pavement's lifespan by as much as 20 years. Professional Asphalt Service, the leading asphalt contractor serving Greater Minneapolis and St. Paul, MN, explains below why regular seal coating and pavement maintenance is so effective at extending asphalt longevity.

Why Seal Coating Helps Your Pavement Last Longer

Protects Against Gas & Oil Spills

Gasoline and oil can gradually eat through your asphalt surface and therefore should be cleaned up immediately to limit damage. However, various types of seal coating—for instance, a coal-tar-, asphalt-, or petroleum-based emulsion—can prevent oil or gas spills from reaching the porous surface of your parking lot or driveway and prevent damage that could shorten its lifespan.

Reduces Oxidation

Newly laid asphalt is shiny black and fairly flexible, but with exposure to oxygen, the color fades and the material becomes more brittle. It can crack or break under the load of heavy vehicles. Seal coating reduces oxidation, keeps the asphalt flexible, and extends its usable life.

Protects Against De-icing Chemicals

Seal coating acts as a barrier to the harsh de-icing chemicals required to keep Minnesota lots and driveways clear of ice and snow in winter. This prevents gradual damage that results in cracks and potholes.

Slows UV Deterioration

The sun's ultraviolet rays break down the binder that glues the rock, sand, and aggregate of your asphalt surface together. Seal coating slows UV deterioration and keeps your pavement intact for longer.

In addition to improving longevity, seal coating by Professional Asphalt Service in Long Lake, MN, also helps your asphalt surface look its best for years to come. For more information about seal coating, visit their website, or call (612) 636-8888 to discuss your options with a friendly, knowledgeable professional.