Parking Lot after sealcoating

As we all know, asphalt is one of the strongest pavement material out there. It is widely used because of its sturdy property. This type of pavement mainly comprises of rocks and gravel which is combined by way of a binder material (mainly made of some crude oils). This binder is an important element to maintain and increase the lifetime of the asphalt pavements. But due to the extensive exposure of the pavements to external forces such as U.V. Rays, rain, and other chemicals, the wear, and tear along with the removal of the binder onto the asphalt will be ruined in no time.

Sealcoating project in the works

Sealcoating workers in the process of coating an asphalt parking lot.

Protecting the Asphalt

This is where the asphalt seal coating comes in. Sealcoating is a type of maintenance program in which there will be another layer that will be applied on top of the original asphalt pavement. This, in turn, will give further protection from external elements such as U.V. rays, rain, and other destructive chemicals. In addition to that, seal coating will provide a slip-resistant and smoother black finish onto the surface if they are applied following manufacturer’s specifications. This then gives a better appearance thereby providing a more beautiful look on someone’s driveway or parking lot.

What are sealcoats made of?

Seal coats are usually products or acrylics made from bitumen. It is usually made in a liquid formulation mixed with water, polymer additives, silica sand and other fillers that are considered proprietary. It can be applied by way of brushing, spraying or by the use of a squeegee. If there is a regular application of seal coating, it is projected to increase the life of the asphalt pavement more than two times its regular life.

After image of parking lot sealcoating before Anderson and Sons Asphalt of Pinellas County Fl did a fresh seal

After image of parking lot sealcoating by Anderson and Sons Asphalt of Pinellas County Fl

Asphalt patch jobs

There is another way of maintaining asphalt pavements which are called asphalt overlaying. It is a patch job on an already damaged (or inhibiting potential damage) on an area within the asphalt pavement surface. The method is to lay a thin layer of asphalt onto an existing surface thereby making a new surface layer of asphalt that somehow “patched” or repaired particular potholes and/or cracks. While this method seems to be the faster option, it may not be the most cost-effective one. Asphalt overlay only provides a quick fix as the underlying problems beneath the surface of the asphalt is not properly mitigated. It may have the strong possibility of exposing the underlying problem below the surface in just about a year or two. While this may seem to be a usual way to solve or prevent problems, it is not recommended as it could give more problems over time. With the application of seal coating on a regular manner, it can give better coverage and security not only the asphalt surface but underneath as well. Sealcoating is much like painting a roof – with a regular application not only gives a cleaner and newer look; it also gives a new layer of protection for destructive liquids that penetrate underneath slowly overtime. Asphalt overlaying could increase the whole pavement’s life for a year or two, but asphalt seal coating increases the pavement’s life more than double and that alone inarguably provides more efficiency and reliability.

Sealcoating is the best way to extend asphalt lifetime

As a summary, the seal coating will give longer life to the pavement and relatively costs lesser than any other maintenance methods for asphalt pavements especially when applied regularly and properly. It essentially prevents oxidation, gets better security from water/liquid damage and even leaves a better look.

To maximize the use of seal coating for maintenance of asphalt pavements, here are some of the important tips to obtain the best performance and longer life for the asphalt pavements:

For each seal coating session, a minimum of two coats must be applied
Apply seal coating whenever the outside temperature will be 50 degrees and should be rising for the next 24 hours or so. Ensure to always check the weather forecast to keep up with this requirement.
If rain is forecasted within 24 hours, do not apply seal coating and resume on other instances.
Allow the newly seal coated pavement to cure for 24 hours before using or allowing vehicles to pass onto it.

As long as the above tips are followed properly, the optimum properties and relative advantages of applying seal coating will be realized over time. One would then enjoy the use of asphalt pavement to its full potential whether aesthetically or functionally.
For more information about asphalt laying and maintenance, head on to

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