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Seal Coating

Seal coating is specifically formulated to shield roadways and parking lots from harmful elements that lead to surface deterioration. Extend the life of your pavement and restore that like-new look at a reasonable price.

Seal coating extends the service life of your asphalt concrete protecting it from exposure to:

  • Drying effect of the sun
  • Damaging effects of petroleum derivatives
  • Oxidation
  • Water
  • And more…


Fresh seal coat gives your pavement a dark black color while making it look and wear like new. A black parking lot has a clean, rich look that presents a positive image of the company, facility, or residential complex. Striping also enhances the beauty and efficiency of a newly seal coated parking lot. 

Slows oxidation and water penetration

Exposure to oxygen hardens asphalt binders and results in a brittle pavement surface that is more susceptible to cracks. These cracks permit water to penetrate into the sub base, weakening it and reducing pavement strength. This leads to more cracks, which can eventually expand and become potholes. Seal coating fills the surface voids, reducing exposure to oxygen and water, while prolonging the life of pavement. Weathering, oxidation, and the destructive softening effects of gasoline, oils, and deicers primarily cause surface wear but the number one cause of deterioration is water. 

Resists Gas & Oil Spills

Gasoline dripping from a topped-off fuel tank during hot weather can soften and break down asphalt pavements. This is because asphalt is also a petroleum-based product. Because sealants containing coal tar aren’t soluble in gas or oil, they are impervious to gas and oil spills. By filling surface voids, seal coating also reduces the depth to which oil or gas can penetrate the pavement. 

Resists Ultraviolet Rays

Ultraviolet rays from the sun break the bonds between carbon polymers within asphalt, but these rays don’t damage the aggregate within asphalt concrete. Although the seal coat does not repair any damage that has already occurred to the asphalt, it does prevent ultraviolet rays from causing further damage. A seal coat keeps a parking lot black. The blacker it is, the more heat it draws from the sun; the more heat it draws from the sun, the more pliable it is; the more pliable it is, the better it can withstand heavy traffic volume without cracking. 

Preparation and Application

In order for seal coating to do its job, any structural failures or cracks must be repaired in advance. All potholes must be removed and replaced. Cracks must be cleaned and filled. And oil spots must be cleaned or primed. 

Seal coating is not a replacement for asphalt, but it does save you money!

Seal coating was never meant to replace asphalt, only to protect it. If an area is in especially bad shape, then it should be replaced. As in all types of contracting there is a right way and a wrong way to do a job. Asphalt, a petroleum product, has tripled in cost over the past 15 years. For pennies per square foot, a sealing application can protect your investment, prevent costly repairs, make the entire asphalt surface monolithic, and add value to your property.  


Striping is the “finishing touch” on a freshly paved or sealed parking lot. Since striping is the most noticeable part of the parking lot, it is imperative that the job is neat and efficiently laid out. Striping should not be considered the final step of upkeep for a paved surface. All surfaces, especially those made of asphalt, need to be maintained continually. It is called the finishing touch because striping is done once all other surface repairs are complete and the pavement is ready for efficient use by both the public and the property owner. 

Benefits of Lot Marking

Striped parking lots have become so common that it’s easy to overlook the benefits of a painted lot versus one left blank.

A parking lot is the first thing that customers, clients, and visitors see of a facility. The color contrast of a newly striped lot is attractive and shows that the property owner emphasizes proper maintenance. A professional striping job can compensate aesthetically for a poorly designed lot. A good striping job can also give the parking lot a look of balance and symmetry, even if it wasn’t there to begin with. 


Striping should direct people safely around the parking lot. Crosswalks, stop bars, loading-zone markings, and properly marked pickup areas (such as for customers or boarding vehicles) will inform users where they should walk, give the right of way to traffic, and indicate which areas to avoid.

Design Considerations

There are several things to consider when you design the striping of your parking lot. The contractors at Black Hawk Paving are here to help!

Maximizing space utilization is the most important part of striping a parking lot. As a property owner, you aim to get the most cars possible into a parking lot to maintain cost-effectiveness. The right layout and striping can help you meet this goal.

Traffic Flow

Customers want parking lots that allow them to enter, park, and exit quickly and safely. Attractive and properly placed parking stalls, arrows, handicapped-reserve signs, and other driver directives (such as YIELD signs) can provide this.

Designated Parking:

Customers, Employees, Visitors, etc.

Preparation and Application

Black Hawk Paving uses the highest quality materials and the latest equipment to get the job done efficiently. We are also equipped to provide specialized markings and signs for any purpose.

Our contractors inspect lots to see if all repair work (crack sealing, potholes, sealcoating) has been properly completed and that all surfaces are even.

To help preserve or improve the flow of traffic on a parking lot, Black Hawk Paving will either re-stripe or lay out new markings (per customer’s blueprints or design).

Details we need to take into consideration include:

  • Direction of traffic flow
  • Width of drive lanes
  • Number of stalls in each bay
  • Location of fire lanes
  • ADA requirements
  • Location of delivery and garbage collection areas
  • Angled or straight-in parking

When striping an entire lot of a closed business, our work crew will block all lot entrances and exits to prevent traffic from entering the work area. 

Layout & Striping

Providing the most stalls possible in a functional parking lot is the main goal of every layout.

The straight-in design (90°) always allows for the most stalls, but for a variety of reasons, angled stalls are frequently preferred. Straight-in stalls are easiest to layout and stripe. They also allow for two-way traffic.

Angled stalls are easier for drivers to turn into, back out of, and require a narrower lane. In addition, angled stalls provide a controlled one-way traffic flow and create a herringbone design that many owners find appealing. Unfortunately, the greater the angle, the more space is taken up.

Since we only apply environmentally friendly acrylic water borne paint, the temperature must be 45° and rising. Traffic should be kept off a just-painted lot for at least one hour.

With the paint dried, the lot is “finished” and ready for full use.

Call us today for a free site evaluation!                 

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