an asphalt parking lot freshly sealcoated and painted

Comprehensive Guide to Asphalt Parking Lot Sealcoating

Featured image by B Brown

An asphalt parking lot, as an essential infrastructural element, faces the regular wear and tear from vehicular traffic and environmental elements. Sealcoating is an essential maintenance practice that not only rejuvenates the aesthetic appeal of the parking lot but also fortifies its surface. This guide elaborates on the significance of sealcoating, the preparatory steps, and best practices to ensure the longevity and safety of your parking space.


What Is Asphalt Parking Lot Sealcoating and Why Is It Important? 

Parking lot sealcoating involves applying a protective layer over asphalt parking surfaces. This process guards against damage caused by UV rays, water, oil, and gasoline spills. Besides preserving the asphalt, it renews the rich, black appearance, boosting curb appeal. Crucially, sealcoating also prolongs the life of a parking lot, making it a cost-effective solution in the long run by reducing the frequency and severity of repairs.

How Do I Accurately Measure the Area of My Asphalt Parking Lot for Sealcoating?

Measuring the parking lot accurately ensures you obtain the right amount of sealant and allocate resources appropriately. Begin by determining the shape of the parking area. Rectangular and square lots can be calculated by multiplying the length by the width, while more complex shapes might require segmenting the lot into smaller sections and summing up their individual areas. For a detailed step-by-step guide, check out Asphalt Kingdom’s comprehensive article It’s a trusted resource that simplifies the process of sealcoating an asphalt parking lot, ensuring precision.

Are There Specific Weather Conditions to Consider When Planning for Sealcoating? 

Absolutely. Weather plays a pivotal role in sealcoating. Ideally, temperatures should be above 50°F and maintain this for at least 24 hours. Also avoid rainy days as water can impede the curing process. Humidity levels also matter. For example, high humidity can slow down drying times. Always check a reliable weather forecast before planning to sealcoat an asphalt parking lot.

What Preparatory Steps Should I Take Before Sealcoating Begins?

Preparation is key to a successful sealcoating job. First, inspect the parking lot for any visible damages and repair them. This includes filling cracks, potholes, and leveling low spots. Next, clean the surface thoroughly. Remove dirt, debris, oils, and grease using brushes, blowers, or pressure washing. Ensure the surface is completely dry before sealcoating. Proper preparation not only ensures adherence but also optimizes the sealcoat’s lifespan.

How Often Should I Consider Resealcoating My Asphalt Parking Lot?

Typically, a parking lot should be resealcoated every two to three years. However, the exact duration can vary based on factors such as traffic volume, environmental conditions, and the quality of the initial application. Periodic inspections can help you determine when it’s time. Remember, it’s easier and more cost-effective to maintain a parking lot than to repair or replace it.

What Type of Sealant Is Best for Parking Lot Surfaces, and How Much Will I Need?

Choosing the right sealant for your asphalt parking lot is crucial. The most common types include asphalt emulsion, coal tar, and acrylic-based sealers. Your choice should be based on factors such as local environmental regulations, desired finish, and traffic load. To determine the amount, refer to the product’s coverage rate and the area of your parking lot. As always, consult with trusted suppliers like Asphalt Kingdom. They can offer personalized recommendations.

How Long Should I Wait Before Allowing Vehicles Back onto the Freshly Sealcoated Parking Lot?

Generally, a freshly sealcoated asphalt parking lot requires at least 24 hours to cure. However, this can vary based on temperature, humidity, and the type of sealant used. It’s essential to prevent any traffic until the sealcoat is completely dried to ensure its durability and visual appeal.



Sealcoating is an indispensable maintenance activity for asphalt parking lots, enhancing their appearance, durability, and safety. By understanding its importance, the intricacies of preparation, and the best practices, you can ensure a long-lasting parking surface. Remember to utilize resources like Asphalt Kingdom’s guides and their expert consultations to achieve the best results.