Sealcoating is a crucial component of asphalt maintenance, which helps to secure and increase the life of your driveway or parking lot. Sealcoating is a prudent investment whether in residential or commercial premises to ensure that asphalt surfaces are maintained in terms of their looks and durability. This guide will discuss all you need to know about sealcoating such as its advantages, the process, and why it is important to your pavement life.
What is Sealcoating?
Sealcoating is a coating that is applied on asphalt surfaces (driveways, parking lots, and roads) to prolong their life. It is the practice of applying a liquid sealant that forms a smooth and uniform surface that provides a barrier against the destructive elements such as water, oil, UV rays and the harsh weather conditions. Sealcoating is also known as asphalt sealing or blacktop sealing.
The sealcoat is normally composed of asphalt mixed with water and other additives like sand, latex or polymers. This combination forms a hard and sturdy coating that attaches to the asphalt, making the surface remain tough and secure.
Benefits of Sealcoating
Prolongs Asphalt Lifespan
Sealcoating is also one of the main advantages that prolong the life of asphalt surfaces. Sealcoating when properly applied can increase your asphalt pavement by a factor of two or more. It assists in avoiding the destruction of the elements, including rain, snow, and sunlight that may lead to cracking, fading, and erosion with time. Sealing the surface is adding another protective layer that will not allow these issues to arise.
Improves Appearance
The other notable advantage of sealcoating is that it improves the look of your parking lot or driveway. Freshly laid asphalt is black in color and appears to be new. This enhanced curb appeal has the ability to boost the value of property, particularly commercial properties, where first impressions are paramount. It also assists in concealing minor cracks and blemishes in the asphalt, making it look smoother and more polished.
Shields Against the Elements
Asphalt is always in contact with the elements and this may cause it to wear out. Water, oil, and fuel may leak to the surface, forming cracks and potholes. The sun may lead to drying up and fading of the asphalt due to UV rays. Sealcoating forms a very good barrier that these elements cannot penetrate the surface hence maintaining the integrity of the asphalt. This shield is necessary particularly in places where weather conditions are harsh and extreme temperatures, snow and rain are common.
Cost-Effective Maintenance
Sealcoating is a comparatively cheap maintenance option to the expensive cost of repairing or repaving damaged asphalt. A sealcoat will help you save money on repairs and maintain your driveway or parking lot in excellent condition by applying a sealcoat after every few years. It is a cost-effective method of keeping your asphalt surface functional and attractive without having to repair it all the time.
When to Sealcoat your Asphalt?
Sealcoat is best applied after about 6-12 months of asphalt being laid. This waiting time is necessary to cure and settle the asphalt, so that the sealant sticks. Once you have applied your asphalt, it is recommended that you reseal your asphalt after every 2-3 years, depending on the amount of traffic, climate and other environmental conditions.
When your asphalt surface is exhibiting wear, like fading, cracking, or little potholes, then it might be time to apply a new layer of sealant. Before such problems get bigger, it is worth resealing before it becomes a more expensive problem in the future.
Sealcoating Process: Step-by-Step
Surface Preparation
The surface of asphalt should be cleaned and prepared before applying the sealcoat. This includes the elimination of dirt, debris, leaves, and any other foreign substances that may affect the bonding of the sealant. In case of bigger projects, contractors can clean the surface with power washers or mechanical brushes.
This is followed by filling any cracks or potholes in the pavement using crack filler or patching material. This will guarantee that the sealant will produce a smooth surface.
Applying the Sealcoat
After cleaning and preparing the surface, the sealcoat is sprayed or squeegeed on. Contractors normally use two layers of sealant to ensure maximum protection. The initial coating is applied to the surface in a uniform manner and then a second coating applied when the first has dried. The sealant is normally done in thin layers to avoid pooling or uneven application.
Drying and Curing
Once the sealcoat has been applied, the surface should dry and cure. This usually requires 2 to 4 hours, depending on weather conditions. One should not drive or walk on the surface until it is completely dry to make sure that the sealant sets.
Types of Sealcoating Materials
Sealcoating materials can be of various types and they provide varying degrees of protection.
The most prevalent ones are:
Coal Tar-Based Sealers: These are the most commonly used and the most durable sealants. Sealers made of coal tar are resistant to oil, gasoline and UV rays and therefore suitable in high-traffic areas.
Asphalt-Based Sealers: Asphalt-based sealers are produced using refined asphalt and are not as toxic as coal tar-based sealers. They are greener and are generally employed in residential locations.
Polymer-Modified Sealers: These sealers have added polymers to enhance durability and flexibility. They are more protective and can be used in places with extreme weather conditions.
Bio-Based Sealers: Bio-based sealers are a more recent and eco-friendlier alternative, constructed using renewable materials such as soybean and offer a sustainable alternative to conventional sealants.
How to Choose a Sealcoating Contractor
In contracting a contractor to apply a sealcoat, the following factors should be considered:
Experience: Seek contractors that have a history of success in sealcoating asphalt surfaces.
Reputation: Check reviews and references to make sure that the contractor has a good reputation in terms of quality work.
Equipment: The contractor should apply the sealant using high-quality equipment and materials to ensure that it is applied evenly and effectively.
Licensing and Insurance: It is always advisable to employ a licensed and insured contractor to avoid liability.