Seal Coating

Seal Coating

Most asphalt pavements are built with a design life of between 25 and 30 years. This means that without routine maintenance, the entire lot should need to be removed and replaced at the end of its design life.

If a pavement is designed to handle light automobile traffic and is subsequently used for tractor-trailers, it will fail prematurely. If, as in most cases, a pavement is used as it was originally intended, routine maintenance can significantly increase the life of the pavement, even exceeding its original design life.

In addition to asphalt patching and crack sealing, sealcoating should be included as a routine maintenance item every 3 to 5 years. Sealcoating gives the structurally sound pavement an extra layer of protection against petroleum spills, the sun’s harmful rays, water penetration, and the penetration of de-icing and other chemicals. Sealcoating not only keeps harmful agents out and prevents premature deterioration of the asphalt pavement by preserving the materials it’s made of (sand, stone, and liquid asphalt) but also enhances its appearance with a fresh, jet-black facelift every time it is performed.

For additional information about the Pavement Network´s complete services or to receive an estimate, please contact us.

Conventional Coal Tar

A pavement that has been sealed with a coal tar sealer is impervious to gas and oil. This means that the deterioration process caused by fuel and oil spills will be severely curtailed, as well as weather damage caused by wind and water.

Coal tar sealer is also impervious to the sun’s ultraviolet rays which dry out the pavement causing it to ravel and lose its flexibility. When mixed properly with 4-6 pounds of sand per gallon (for added strength and skid resistance) and latex modifiers (for elasticity), the coating will last on your parking lot for many years, when installed by trained professionals.

  • The weather needs to be warm and dry.
  • The temperature should be 50° and rising with no rain in the forecast.
  • Nighttime temperatures should not be below 32° F.
  • The sealcoat material should be mixed in a large tank with a full sweep agitation system which will keep the mixture of coal tar sealer, sand, latex modifier and water at the proper consistency.
  • The asphalt surface must be cleaned with a combination of power brooms, power air blowers and hand tools.
  • All dirt and debris must be removed from the asphalt surface.
  • Fresh oil spots should be treated with a primer to ensure sealer adhesion.
  • Large cracks should be filled with a rubberized crack sealant.
  • The sealer is then “cut in” by hand around the edges of buildings, curbs and other non-asphalt surfaces to prevent overspray.
  • The sealer is then applied to the remainder of the parking lot in two separate coats. The second coat is applied after the first coat has dried.
  • Pavement markings can be applied as soon as the coating is dry using a heavy- duty traffic paint.
  • Traffic can be introduced to the lot in 12 – 24 hours based on climate conditions.

Slurry Seal Features & Benefits

Slurry Seal is a premium, high-performance pavement surface treatment. It can be used for parking lots, shopping malls pavement and other high-traffic, low-speed pavement surfaces. Slurry Seal replenishes the pavement surface while providing a uniform black slip-resistant durable surface.

The Process:

  • Repair cracks and damaged asphalt prior to application.
  • Sweep entire surface prior to applying Slurry Seal.
  • Apply Slurry Seal by squeegee application at a coverage rate of 0.35 gallons per square yard. Application must be at a slow rate to ensure adhesion.
  • Apply second coat when required. First coat needs to be dry to the touch, usually 1-2 hours. Second coat should be applied at 0.20 – 0.25 gallons per square yard.
  • After Slurry Seal has been installed, marking may be done when dry. Usually requires 5-6 hours before opening to traffic.

Asphalt Based

Asphalt base emulsions are used to sealcoat asphalt pavements to prevent oxidation and subsequent deterioration of the asphalt. This means that the deterioration process caused by weather damage caused by wind and water will be severely curtailed.

Asphalt based sealers are also impervious to the sun’s ultraviolet rays which dry out the pavement causing it to ravel and lose its flexibility. They are user friendly and have a milder less poignant odor when compared to other sealers. Higher sand loadings per gallon of sealer are used with asphalt emulsions giving them good skid resistance properties.

Contractors in the Pavement Network are experts at identifying the condition of your pavement and recommending solutions (including nothing, if that is an option) based on weather conditions, sub-base conditions, and available materials in any given region. There is no single solution that will solve asphalt problems in every region of the country. As Pavement Network members, we know that our company’s experts can solve your pavement problems in our own geographical areas, and that our network partners can handle your parking lot issues in their geographical areas. You can expect the same high-quality results across the country.

After curing, the color of the finished product more closely resembles new asphalt than other sealers. Sealing your pavement with an asphalt based sealer will add extra years of and beauty when installed by trained professionals.

The Process:

  • The weather needs to be warm and dry.
  • The temperature should be 50° and rising with no rain in the forecast.
  • Nighttime temperatures should not be below 32° F.
  • The sealcoat material should be mixed in a large tank with a full sweep agitation system which will keep the mixture of coal tar sealer, sand, latex modifier and water at the proper consistency.
  • The asphalt surface must be cleaned with a combination of power brooms, power air blowers and hand tools.
  • All dirt and debris must be removed from the asphalt surface.
  • Fresh oil spots should be treated with a primer to ensure sealer adhesion.
  • Large cracks should be filled with a rubberized crack sealant.
  • The sealer is then “cut in” by hand around the edges of buildings, curbs and other non-asphalt surfaces to prevent overspray.
  • The sealer is then applied to the remainder of the parking lot in two separate coats. The second coat is applied after the first coat has dried.
  • Pavement markings can be applied as soon as the coating is dry using a heavy- duty traffic paint.
  • Traffic can be introduced to the lot in 12 – 24 hours based on climate conditions.
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