Sealcoating often gets misunderstood, leading many people to skip an important step in protecting their pavement. Some think it’s only for looks or that it causes more harm than good, but that’s far from true. Sealcoating extends the life of asphalt, prevents costly damage, and keeps surfaces looking clean and well-maintained.
We’ve heard many claims about what sealcoating can and can’t do, and it’s time to clear them up. By understanding how sealcoating really works, we can make better decisions about maintaining driveways, parking lots, and roads.
In this post, we’ll explain why sealcoating matters, break down the most common myths, and share proven methods that help surfaces last longer.
Understanding Sealcoating and Its Importance
We use sealcoating to extend the life of asphalt surfaces, reduce repair costs, and maintain a clean, dark appearance. It helps prevent damage caused by water, sunlight, oil, and traffic, which can wear down asphalt over time.
What Is Sealcoating?
Sealcoating is a protective coating applied to asphalt pavement. It creates a thin barrier between the surface and harmful elements such as water, oxygen, and chemicals.
We usually apply it using a brush, squeegee, or spray system. The coating dries to form a smooth, black finish that restores the pavement’s color and texture.
Sealcoating services often include cleaning the surface, filling cracks, and applying two coats for better coverage. The process helps fill small surface voids, making the pavement easier to clean and maintain.
A typical sealcoat contains bitumen, coal tar, or asphalt emulsion mixed with sand and additives for strength and flexibility. Regular maintenance ensures even coverage and long-term protection.
Benefits of Regular Sealcoating
Regular sealcoating keeps asphalt in good condition and reduces the need for costly repairs. It slows down oxidation, which causes asphalt to become brittle and crack.
We also notice that sealcoated surfaces are easier to sweep and clean, which improves curb appeal. The dark color enhances visibility of pavement markings and gives parking lots a uniform look.
Key benefits include:
- Extended lifespan: Adds several years to the pavement’s service life.
- Lower maintenance costs: Reduces the frequency of major repairs.
- Improved appearance: Restores color and smooth texture.
- Weather resistance: Shields against rain, sunlight, and temperature changes.
By scheduling sealcoating services every two to three years, we can maintain strong, durable pavement that looks professional and performs well.
How Sealcoating Protects Asphalt
Sealcoating acts as a shield against moisture, oxidation, and chemical spills. Water is one of asphalt’s biggest threats because it seeps into cracks and weakens the base.
We use sealcoating to block water penetration and slow the breakdown of the asphalt binder. It also prevents damage from UV rays, which dry out and fade unprotected pavement.
Oil, gas, and salt can soften asphalt and cause surface erosion. The sealcoat layer resists these substances, keeping the pavement firm and stable.
When applied correctly, sealcoating reduces cracking, raveling, and pothole formation, helping us preserve the pavement’s structure and safety for years.
Debunking the Most Common Sealcoating Myths
Sealcoating often gets misunderstood, leading people to make poor maintenance decisions. We can avoid wasted time and money by separating facts from common sealcoating myths.
Myth: Sealcoating Is Only for Appearance
Many assume sealcoating only improves how pavement looks. While it does create a clean, dark finish, its main purpose is protection. The sealcoat acts as a barrier that shields asphalt from sunlight, water, oil, and chemicals.
Without this layer, asphalt dries out and cracks faster. Sealcoating slows oxidation and extends pavement life. We still get an improved appearance, but the real value lies in preventing costly repairs.
Key benefits include:
- Reduced water penetration
- Protection from UV rays
- Easier cleaning and maintenance
Sealcoating is not just cosmetic; it is a practical part of long-term pavement care.
Myth: Sealcoating Fixes Cracks and Damage
Sealcoating cannot repair structural damage. It covers the surface but does not fill deep cracks or holes. If we apply sealcoat over damaged pavement, the problems remain underneath and may worsen.
Before sealcoating, we must clean and repair the asphalt. Cracks should be filled, and potholes patched. The sealcoat then locks in those repairs and provides a uniform surface.
Comparison Table:
| Task | Sealcoating | Crack Filling | Patching |
|---|---|---|---|
| Seals surface | ✔️ | ❌ | ❌ |
| Fills cracks | ❌ | ✔️ | ❌ |
| Repairs potholes | ❌ | ❌ | ✔️ |
Sealcoating works best as a preventive measure, not as a substitute for repair.
Myth: Sealcoating Is a One-Time Solution
Some believe one application lasts forever. In reality, sealcoating wears down over time due to traffic, weather, and sunlight. Most surfaces need resealing every 2-3 years, depending on use and climate.
Regular maintenance keeps the asphalt flexible and protected. Skipping reapplications allows moisture and oxidation to return.
We should plan a consistent schedule:
- Inspect pavement yearly.
- Repair cracks as they appear.
- Reseal when the surface turns gray or rough.
Sealcoating works best when we treat it as part of an ongoing maintenance plan, not a single fix.
Misconceptions About Sealcoating Practices
Many property owners misunderstand how sealcoating works, what it costs, and when it’s needed. These misconceptions often lead to skipped maintenance, wasted time, or poor results. Understanding the facts helps us protect pavement more effectively and plan maintenance budgets with confidence.
Myth: DIY Sealcoating Is as Effective as Professional Services
Some people believe applying a store-bought sealcoat gives the same results as hiring professionals. In reality, DIY sealcoating often lacks proper surface preparation, material quality, and even coverage. Professionals use commercial-grade sealers, calibrated sprayers, and trained crews to ensure even thickness and strong adhesion.
We also measure weather conditions like temperature and humidity before application. These details affect how the sealer cures and bonds. DIY jobs often skip these steps, leading to uneven wear or peeling.
Comparison Table:
| Feature | DIY Sealcoating | Professional Sealcoating Services |
|---|---|---|
| Material Quality | Consumer-grade | Commercial-grade |
| Equipment | Basic tools | Industrial sprayers |
| Durability | 1-2 years | 3-5 years |
| Surface Prep | Limited | Thorough |
Using professionals saves time and extends pavement life, reducing long-term costs.
Myth: Sealcoating Is Too Expensive
Many property owners assume sealcoating is a costly service. In truth, sealcoating services are a preventive measure that cost far less than asphalt replacement. The average sealcoating project costs a small fraction of resurfacing or repaving.
We recommend sealing every two to three years to prevent cracks and water damage. Without it, oxidation and UV rays harden asphalt, causing early deterioration. Repairing that damage later costs much more.
Cost Breakdown Example:
- Sealcoating: about $0.15-$0.30 per square foot
- Resurfacing: about $1.50-$3.00 per square foot
Regular sealcoating helps us maintain curb appeal, safety, and structural integrity without large repair bills.
Myth: Sealcoating Is Only Necessary for Old Pavement
Some believe new pavement doesn’t need sealcoating. That’s not accurate. Fresh asphalt starts aging as soon as it’s exposed to air and sunlight. Within months, oxidation begins to dry out the surface, making it brittle.
We usually recommend sealing new pavement after it cures, typically within 6-12 months. This first coat locks in flexibility and protects against oil, salt, and UV damage.
Even newer driveways or parking lots benefit from this protection. Sealcoating acts like a shield, keeping small cracks from forming. Over time, this routine maintenance keeps new pavement looking clean and performing well for many years.
Best Practices for Effective Sealcoating
We get the best results from sealcoating when we use skilled professionals and follow a consistent maintenance plan. Proper timing, materials, and application methods help extend the life of asphalt surfaces and prevent costly repairs.
Choosing Professional Sealcoating Services
Hiring experienced sealcoating services ensures the job meets industry standards. Professionals use high-quality materials and apply them in the right weather conditions, usually when temperatures are above 50°F and dry. This helps the coating cure properly and form a strong protective layer.
We should look for contractors who:
- Provide written estimates and detailed service descriptions
- Use commercial-grade sealants and equipment
- Offer references or photos of recent work
It also helps to confirm that the company carries insurance and follows local regulations. A reliable contractor will clean the surface thoroughly, fill cracks, and apply the sealant evenly in thin coats.
Tip: Avoid services that promise instant results or use leftover materials. Quality sealcoating requires preparation, proper mixing, and drying time between coats.
Establishing a Proper Maintenance Schedule
Regular maintenance keeps the asphalt surface in good condition and prevents early wear. We should plan to reseal every 2-3 years, depending on traffic levels and weather exposure.
Before resealing, we inspect for cracks, oil stains, and standing water. Small cracks should be filled right away to stop moisture from seeping in.
A simple schedule might look like this:
| Task | Frequency | Purpose |
|---|---|---|
| Crack filling | As needed | Prevents water damage |
| Sealcoating | Every 2-3 years | Restores protection |
| Cleaning | Monthly | Removes debris and oil |
By keeping a consistent schedule, we maintain the surface’s appearance and extend its life without unnecessary expense.