When it comes to protecting and extending the life of your asphalt driveway or parking lot, sealcoating is a must. But not all asphalt sealers are created equal. Choosing the right type can make a big difference in durability, appearance, cost, and environmental impact. Whether you're a homeowner or a property manager, understanding the pros and cons of each sealer type will help you make the best decision for your pavement. Here’s a breakdown of the most common asphalt sealer types and what you need to know about each.
1. Coal Tar Emulsion Sealer
Pros:
- Exceptional Durability: Known for its resistance to water, oil, gasoline, and UV rays. This makes it a favorite for high-traffic areas.
- Long-Lasting Protection: Typically lasts longer than other sealers, often providing 3-5 years of protection.
- Cost-Effective Over Time: Though slightly pricier upfront, its longevity can save money in the long run.
Cons:
- Environmental Concerns: Coal tar contains high levels of polycyclic aromatic hydrocarbons (PAHs), which have raised health and environmental red flags. Some states and municipalities have even banned its use.
- Strong Odor: It has a potent smell during application and curing.
- Can Be Brittle: Over time, coal tar can become rigid and prone to cracking in colder climates.
2. Asphalt Emulsion Sealer
Pros:
- Eco-Friendly Option: Contains fewer harmful chemicals compared to coal tar, making it safer for the environment.
- Easier to Apply: It’s less harsh on applicators and surrounding vegetation.
- Good Aesthetic Finish: Dries to a deep black, enhancing curb appeal.
Cons:
- Less Chemical Resistance: Doesn’t stand up as well against oil, gas, and other vehicle fluids.
- Shorter Lifespan: Typically needs reapplication every 1-3 years, depending on traffic and weather conditions.
- Not Ideal for Heavy Traffic Areas: Better suited for residential driveways than commercial lots.
3. Acrylic (Polymer-Based) Sealer
Pros:
- Premium Performance: Offers excellent protection against UV rays, chemicals, and weathering.
- Customizable Colors: Unlike traditional black sealers, acrylic can be tinted for decorative purposes.
- Environmentally Safe: Low in volatile organic compounds (VOCs) and safe for sensitive areas.
Cons:
- Higher Cost: One of the most expensive options on the market.
- May Be Overkill: For standard residential use, the premium features might not justify the price.
- Requires Professional Application: For best results, it’s typically applied by professionals, adding to the overall cost.
4. Fast-Dry Sealer
Pros:
- Quick Turnaround: Perfect for businesses or busy properties where downtime needs to be minimized.
- Durable Enough for Commercial Use: Often formulated to handle moderate to heavy traffic.
Cons:
- More Expensive: You’ll pay for the convenience of rapid drying.
- May Sacrifice Longevity: Some fast-dry formulas don’t last as long as traditional options.
- Limited Availability: Not all contractors offer fast-dry solutions.
5. Oil-Based Sealer
Pros:
- Deep Penetration: Soaks into the asphalt, helping to rejuvenate older surfaces.
- Flexible Finish: Less prone to cracking as it remains pliable over time.
- Good for Older Pavement: Can help extend the life of aging asphalt.

Cons:
- Fades Quickly: Doesn’t maintain that fresh black look for long.
- Less Resistant to Chemicals: Vulnerable to oil and gasoline spills.
- Environmental Drawbacks: Contains more VOCs compared to water-based alternatives.
Which Asphalt Sealer Is Right for You?
The best sealer really depends on your specific needs:

- For residential driveways: Asphalt emulsion is often the go-to for its balance of affordability and eco-friendliness.
- For commercial lots or high-traffic areas: Coal tar or fast-dry sealers might be worth considering, where durability is key.
- For premium projects: Acrylic sealers offer top-tier protection and aesthetics.
- For older surfaces: Oil-based sealers can breathe new life into worn-out asphalt.
Make the Smart Choice for Your Asphalt With Maintain It All
If you're unsure which asphalt sealer is right for your property, don’t leave it to guesswork. Maintain It All brings years of experience, industry knowledge, and a commitment to quality to every project. We offer tailored solutions using high-quality materials and proven techniques to protect and enhance your pavement. Whether it’s a driveway or a commercial lot, our team is here to help you make the smart choice for long-lasting results. Contact Maintain It All today to safeguard your investment with expert asphalt care.