Sealcoating Material Types and Their Uses

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Sealcoating is used on asphalt surfaces to protect them from oxidation and other damage caused by cracks, UV rays, and everyday traffic.

It is used by contractors when paving roads and highways, by businesses in their walkways and parking lots, and by homeowners for their driveways and sidewalks.

The process is best used on new surfaces and should be reapplied annually. To get the best asphalt repair services, you can choose driveway paving services in concord Joe Mcmanus asphalt services.

Using this process can extend the life of an asphalt surface for up to 30 years. While colder climates need the extra protection because of the stress that repeated freezing and thawing can put on surfaces, warmer areas can also benefit, since the UV rays and petroleum products from traffic take their toll on the asphalt.

The process also enhances the look of a paved surface, giving it a clean, uniform appearance. There are basic types of sealcoating products used today:

Coal Tar

This type is based on a substance that is a byproduct of the steel-making process, crude coke oven tar. It is the most popular type of sealant, since it is considered more durable and more resistant to oil and gasoline than asphalt-based products. 

This product has been banned in some states due to geological studies demonstrating that exposure to the chemicals contained in coal-tar-based sealants can lead to potential health risks. Other air sampling studies, however, have indicated no inhalation risk to people exposed to the product.

Asphalt Emulsions

Based from crude oil, this type is composed of a blend of emulsion specialty chemicals, fillers, and pigments. It has a very low odor and does not contain irritating chemicals, making it easy and safe to apply. The emulsion puts a barrier between the asphalt and materials or factors in the environment that can harm it.

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