Top Travel Questions – Answered

Calculating the Perfect Amount of Blacktop Sealer for Your Travel Adventures

How much blacktop sealer do I need?

As an expert in road and pavement maintenance, I understand the importance of properly sealing your blacktop to ensure its longevity and durability. Applying a blacktop sealer not only enhances the appearance of your pavement, but also protects it from the damaging effects of weather, traffic and UV rays. However, determining the right amount of blacktop sealer to use can be a bit of a challenge. In this article, I’ll walk you through the process of calculating the amount of blacktop sealer you’ll need for your traffic-related projects, whether it’s a parking lot, driveway or road.

Understanding Coverage Rates

Before you can determine the amount of blacktop sealer you need, it’s important to understand coverage rates. Coverage rates refer to the area that can be covered by a given amount of sealer. Typically, blacktop sealer manufacturers provide coverage rates in terms of square feet per gallon. For example, a manufacturer may state that their sealer provides coverage at a rate of 100 square feet per gallon.
Keep in mind that coverage rates can vary depending on factors such as pavement porosity, surface conditions, and application method. It’s always a good idea to check the product label or contact the manufacturer for specific coverage rate information.

Calculate area to be sealed

The next step in determining how much blacktop sealer you need is to calculate the area to be sealed. The formula for calculating the area of a rectangular or square area is simple: length multiplied by width. For irregularly shaped areas, you can divide the area into smaller sections and calculate the area of each section separately.

Use a tape measure to measure the length and width of the area you want to seal. If you have an irregularly shaped area, you can divide it into smaller sections and measure each section separately. Once you have the measurements, multiply the length by the width for each section to get the area of that section. Finally, add the areas of all the sections to get the total area to be sealed.

Determine Sealer Quantity

Now that you have the total area to be sealed, you can determine the amount of blacktop sealer needed. To do this, divide the total area by the coverage rate provided by the manufacturer. The resulting value will give you an estimate of the number of gallons needed to cover the entire area.

It’s important to remember that it’s better to have a little extra sealer than to run out in the middle of the project. Depending on the complexity of the area and the porosity of the pavement, you may want to consider adding a small buffer to account for potential variations in coverage. This will ensure that you have enough sealer to complete the job without interruption.

Considerations and Additional Tips

While the formula above provides a good estimate of the amount of blacktop sealer you will need, there are a few additional factors to consider:

Surface condition: If your pavement is in poor condition or has cracks and potholes, it’s a good idea to address these issues before applying the sealer. Sealing a damaged surface may not produce the desired results and could lead to premature failure.
Application Method: The method you use to apply the blacktop sealer can also affect the coverage rate. For example, using a sprayer may result in a different coverage rate than applying the sealer with a squeegee or brush. Be sure to consult the manufacturer’s recommendations for the best application method.

Multiple coats: In some cases, it may be necessary to apply multiple coats of sealer to achieve the desired level of protection and appearance. If you plan to apply multiple coats, adjust your calculations to account for the additional sealer required.

By following these guidelines and using the appropriate calculations, you can determine the proper amount of blacktop sealer needed for your travel-related projects. Adequate preparation and careful planning will ensure that your pavement remains in optimal condition, with improved aesthetics and increased durability.

Remember, if you have specific questions or concerns about your project, it’s always a good idea to consult with a pavement maintenance professional or contact the manufacturer of the blacktop sealer for expert advice tailored to your specific needs.


How much blacktop sealer do I need?

The amount of blacktop sealer you need depends on the size of the area you want to seal. To calculate the quantity, you will need to measure the square footage of the surface that requires sealing.

What is the typical coverage rate for blacktop sealer?

The coverage rate of blacktop sealer can vary depending on the manufacturer and product. However, a common coverage rate is around 100 to 150 square feet per gallon. It’s important to check the product label or consult with the manufacturer for the specific coverage rate of the sealer you are using.

How do I calculate the amount of sealer needed?

To calculate the amount of blacktop sealer needed, you will need to follow these steps:

Measure the length and width of the area in feet.

Multiply the length by the width to get the square footage.

Divide the square footage by the coverage rate of the sealer.

Round up the result to the nearest whole number to determine the number of gallons needed.

Are there any factors that can affect the amount of sealer required?

Yes, several factors can influence the amount of blacktop sealer required. These factors include the condition of the pavement, its porosity, and the thickness of the sealer coat you desire. Additionally, if there are cracks or potholes that need filling before sealing, you may need to account for the extra material needed for those repairs.

What should I do if the calculated amount falls between two whole numbers?

If the calculated amount falls between two whole numbers, it’s generally recommended to round up to the nearest whole number. It’s better to have a little extra sealer on hand to ensure complete coverage than to run out in the middle of the project.

Can I buy blacktop sealer in different container sizes?

Yes, blacktop sealer is typically available in various container sizes, such as 1-gallon, 5-gallon, or even larger quantities. It’s a good idea to check with your local supplier or retailer to see what container sizes are available for the specific sealer product you plan to use.