Sealcoating is a must for asphalt surfaces. It protects against weather, chemicals, and daily wear and tear. But when is the best time to apply sealcoat? The period from April to October offers the most favorable conditions for sealcoating.
In this article, we will explore the benefits of sealcoating during the spring to fall months, why winter applications are problematic, and provide some tips for effective summer sealcoating.
About Sealcoating
Sealcoating refers to the process of applying a sealant over your existing asphalt pavement to seal the surface and fill hairline cracks. Without a doubt, sealcoating solutions are the best way to protect asphalt from the elements. The goal is to extend the life of your driveway or parking lot.
Many are surprised to learn that simply applying an extra layer of sealant to a driveway or parking lot can preserve it for years. Sealcoating can potentially double its lifespan, which saves a considerable amount of money.
However, when applying sealcoating it’s like everything – timing matters!
Why Summer is Ideal for Sealcoating
Sealcoat cannot be applied at any time of the year. In fact, you have a very short window of time to effectively apply sealcoating for the best results.
The long days of summer from June to August are the best time to carry out sealcoating. The warm temperatures ensure that the sealcoat adheres properly and the warmer temperatures also help it cure.
Let’s discuss why summer stands out as the ideal time:
Optimal Temperature for Adhesion
Sealcoating requires ambient temperatures to be consistently above 50 degrees Fahrenheit for proper adhesion.
During summer, temperatures are usually well within this range, ensuring that the sealant bonds effectively with the asphalt. The heat allows the sealcoat to dry and eventually cure.
Better Curing Conditions
In hot weather, the curing process is significantly faster, which is important for businesses and their operations. Sealcoat dries quickly, therefore reducing the time your driveway or parking lot is out of service.
Faster curing also means a more durable finish, as the sealcoat forms a strong protective layer. In addition, the rapid drying speed helps reduce the risk of dust, debris, or moisture interfering with the curing process.
Consistent Weather Conditions
Summer offers more predictable weather conditions compared to spring or fall. There’s less chance of unexpected rain showers or cold snaps that can delay the application process or affect the quality of the sealcoat. Early spring can bring rain and in fall months the temperatures can plummet unexpectedly.
Consistent sunny days ensure the sealant cures properly without interruptions.
How Winter Affects Sealcoating
Winter is not conducive to sealcoating due to several complications and considerations:
Low Temperatures
When old man winter arrives, it’s too late to sealcoat surfaces. Temperatures below 50 degrees Fahrenheit are too cold for sealcoating. Temperatures below the freezing point during the curing period will cause the sealcoat to peel from the pavement.
Instead of forming a solid, protective layer, the sealcoat remains tacky and fails to bond with the asphalt, leading to poor coverage and protection.
Moisture and Ice
Winter brings moisture in the form of rain, snow, and ice, which is detrimental to sealcoating.
- Water can seep into the asphalt, causing the sealcoat to lift and peel away.
- Ice can expand within the asphalt cracks, leading to further damage and making it difficult for the sealcoat to adhere.
Longer Curing Time
In cold weather, the curing time for sealcoat extends significantly. This prolonged curing can expose the sealcoat to more elements, like dust, debris, and precipitation, compromising its effectiveness.
Additionally, the extended downtime can be inconvenient for property owners, businesses and other users.
Tips for Summer Sealcoating Applications
While summer is ideal for sealcoating, the following tips can ensure a successful application:
Schedule During the Early Morning or Late Afternoon
The time of day matters. To avoid the extreme heat of midday, plan for sealcoating jobs to be performed in the early morning or late afternoon. This helps prevent the sealcoat from drying too quickly and ensures a smoother application.
Working during cooler parts of the day also protects workers from heat stress!
Prepare the Surface Thoroughly
Proper surface preparation is key to a successful sealcoating job. MAC performs the following before any sealcoat hits the asphalt.
- Clean the surface thoroughly to remove dirt and debris.
- Treat oil spots as needed.
- Fill any cracks or potholes with suitable filler and allow them to cure before applying the sealcoat.
Use Quality Sealcoat Products
It is important to work with a contractor who uses high-quality sealcoat products designed for the local climate conditions. Quality products offer better adhesion, durability, and protection.
At MAC, the popular sealing products that other asphalt companies formulated didn’t meet our stringent standards, so our team decided to produce our own – you can read more about our in-house production here.
Monitor Weather Forecasts
Even during summer, it’s essential to keep an eye on weather forecasts. Mother Nature is fickle.
Avoid sealcoating if there’s a chance of rain. Rain can wash away the non-dried sealcoat, leading to uneven coverage and reduced protection.
Allow Adequate Curing Time
While summer speeds up the curing process, it’s crucial to allow adequate time for the sealcoat to set before using the surface. Typically, a newly sealcoated driveway or parking lot should remain undisturbed for at least 24-48 hours. This ensures the sealcoat forms a robust, protective layer. Tire or power steering marks may occur on newly sealed surfaces but these marks will “settle down” and eventually disappear.
Why Sealcoating Requires Professionals
Sealcoating requires the right tools and materials to ensure a successful and long-lasting application – not to mention experts who understand the proper time of year for application.
Why you need sealcoating pros:
- Proper preparation tools, such as high powered blowers and crack fillers, help clean and repair the asphalt surface before sealcoating.
- High-quality sealant products and application equipment like squeegees or sprayers ensure an even and thorough coat.
- Protective gear for workers, including gloves and masks, is essential for safety.
- The knowledge and skills to carry out the process and ensure a professional finish.
Having these tools on hand not only makes the process more efficient but also guarantees a professional finish, enhancing the durability and appearance of the asphalt surface.
Experience Proven Excellence in Asphalt Sealcoating
Sealcoating your asphalt surfaces from April to October, particularly during the summer months, offers the best results. The warm temperatures and consistent weather conditions facilitate proper adhesion and faster drying and ideal curing, ensuring a durable and effective sealcoat.
By understanding why winter applications are problematic and following best practices for summer sealcoating, you can protect and extend the life of your asphalt surfaces, maintaining their appearance and functionality for years to come.
To learn about our expert sealcoating and asphalt maintenance services, contact MAC today!
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