If you manage a property, run a business, or just take pride in a well-kept driveway, you’ve probably asked yourself: what’s the secret to asphalt that looks sharp and lasts for years? It’s not a trick. The answer is regular care, and in the world of pavement, sealcoating is your best ally.
But not all sealcoating materials are created equal. Walk into any hardware store or talk to a few contractors, and you’ll hear a lot of different opinions. One claims oil-based is king. Another swears by acrylics. Someone else raises a skeptical eyebrow at coal tar, mumbling about the environment. So, who’s right? Which sealcoating material actually delivers?
Let’s settle it, once and for all. In this guide, we’ll dig into the main types of sealcoating materials, breaking down their pros and cons in plain English. You’ll see where each type shines and where it falls short, so you can make a choice that fits your property, your climate, and your priorities.
What Is Sealcoating?
Sealcoating is the process of applying a protective layer to the surface of asphalt pavement. This thin but mighty shield helps block out damaging elements like water, sunlight, oil, and chemicals. It keeps your asphalt looking fresh, slows the relentless creep of cracks, and can even help you avoid expensive repairs down the road.
Think of it as sunscreen for your pavement. Left unprotected, asphalt fades, cracks, and unravels, sometimes sooner than you’d think. With the right sealcoat, you get more mileage and more curb appeal for your money.
The Upside and Downside of Sealcoating
Let’s get real: sealcoating isn’t magic. It’s maintenance. Here’s what you’re getting when you sealcoat, and what you’re not.
Pros:
- Extends pavement life by locking out moisture, oil, and UV damage
- Enhances appearance by restoring that deep black finish
- Helps prevent cracks and potholes
- Can save money over time by slowing major deterioration
- Easier cleanup after oil leaks or spills
Cons:
- Needs to be reapplied every few years
- Won’t fix serious structural damage
- Can be slippery until fully cured
- The wrong material or poor application can lead to problems (peeling, tracking, or premature wear)
What’s In a Sealcoat?
At its core, a sealcoating material is a blend. Most formulas start with a base, like asphalt, coal tar, or acrylic, then mix in water, fillers, binders, and sometimes specialty polymers or additives. Each recipe offers a different balance of protection, durability, drying time, appearance, and cost.
So which one belongs on your parking lot, street, or driveway? That’s what we’re here to untangle.
Types of Sealcoating Materials
Time to roll up our sleeves. Here’s a deep dive into the most common types of sealcoating materials, how they work, their strengths, their flaws, and where they fit best.
1. Asphalt Emulsion Sealers
What Is Asphalt Emulsion?
Asphalt emulsion is a water-based blend of refined asphalt, water, and an emulsifying agent (think of it as a chemical “matchmaker” that keeps the oil and water mixed). It’s made to be safe for the environment and for the crew applying it. Unlike some harsher options, it’s free from the sharp smell of coal tar.
Pros
- Low odor and low VOCs: Friendlier for neighborhoods, schools, or anywhere you want to avoid chemical fumes.
- Easier clean-up: Washes off tools and skin with water.
- Gentle on the environment: Less toxic runoff, making it a good fit for green-minded projects.
- Flexible finish: Moves with the asphalt as temperatures swing, reducing risk of cracking.
- Dries to a rich, deep black: Restores the look of new pavement.
Cons
- Not as resistant to chemicals: Gasoline or oil spills can damage the seal.
- Dries slower than some alternatives: Can take longer to open the area to traffic.
- Can be less durable in extreme climates: May not hold up as long under heavy traffic or harsh sun.
Best For
- Residential driveways, walking paths, and parking lots in moderate climates
- Projects where environmental impact or odor are top concerns
2. Oil-Based Sealers
What Is Oil-Based Sealcoat?
Oil-based sealers use a petroleum base, usually a cutback asphalt mixed with solvents. They penetrate the pavement to rejuvenate old, oxidized surfaces and add a deep, rich color.
Pros
- Great for aged asphalt: Soaks in to replenish the surface, making brittle pavement more flexible.
- Water resistant: Offers a strong shield against rain and snow.
- Fast cure time: Some formulas can be ready for traffic in just a few hours.
- Longer-lasting color: Keeps its dark look for a long time.
Cons
- High VOCs: Strong smell and environmental concerns; can run afoul of local regulations.
- Slippery when first applied: Takes time to cure to a safe, non-slip finish.
- Can soften under high heat: In hot climates, may lead to tracking or surface marks.
- Less eco-friendly: Petroleum and solvents can harm plants, waterways, and soil if not handled carefully.
Best For
- Driveways and lots in colder or wetter regions, especially where the asphalt is older and needs rejuvenation
- Commercial projects where long-lasting appearance is a priority, and local regulations permit
3. Water-Based Sealers
What Is Water-Based Sealcoat?
Water-based sealers typically use a blend of acrylics, polymers, or asphalt in a water suspension. These products are designed to cure quickly, minimize odor, and offer a safe, easy clean-up.
Pros
- Low odor: Great for use around schools, apartments, and homes.
- Quick drying: Some can be ready for light traffic in just a few hours.
- Safer to handle: Minimal risk of toxic fumes or skin irritation.
- Eco-friendly options available: Many are made to be gentle on the environment.
Cons
- Not as durable as oil or coal tar: May require more frequent reapplication.
- Sensitive to weather: Application can be tricky in high humidity or cold.
- Higher cost: Premium water-based options can be pricier than standard asphalt or coal tar.
Best For
- Residential or light-use commercial properties
- Projects with tight timeframes or environmental restrictions
4. Acrylic-Based Sealers
What Is Acrylic-Based Sealcoat?
Acrylic sealers are synthetic, made from a blend of acrylic polymers and various additives. They can be water-based or solvent-based and often come in a range of colors, not just black.
Pros
- Highly durable: Long-lasting and tough enough for heavy traffic.
- Customizable appearance: Available in multiple colors, so you can match your branding or landscape.
- Resistant to UV rays, chemicals, and water: Handles spills and sun without breaking down.
- Quick curing: Many acrylics set up faster than traditional asphalt or coal tar.
Cons
- Expensive: Often the most costly option by square foot.
- Professional application recommended: DIYers may find it tricky to get a smooth, even coat.
- May require specialized equipment: Not always available at your local hardware store.
Best For
- High-traffic commercial lots, sports courts, decorative pavements
- Projects where color and long-term performance matter more than cost
5. Latex-Enhanced Sealers
What Is Latex-Enhanced Sealcoat?
Latex-enhanced sealers start with a traditional base (often asphalt emulsion or coal tar) and mix in latex polymers. The latex gives the sealer added flexibility, durability, and a more uniform finish.
Pros
- Extra flexibility: Moves with the pavement, reducing cracking.
- Enhanced durability: Better resistance to peeling, tracking, and wear.
- Improved appearance: Provides a smoother, more even finish.
- Faster drying times: Especially helpful when you need a quick turnaround.
Cons
- Slightly higher cost: Added latex polymers bump up the price.
- Limited availability: Not every supplier carries latex-enhanced formulas.
- Quality varies: The benefits depend on the amount and type of latex added.
Best For
- Busy parking lots, playgrounds, and walkways that see heavy use
- Projects needing a balance of durability, flexibility, and quick drying
6. Polymer Modified Sealers
What Is Polymer Modified Sealcoat?
Polymer modified sealers blend traditional bases (asphalt or coal tar) with advanced polymers for a formula that pushes the envelope on strength and longevity.
Pros
- Maximum durability: Holds up to extreme temperatures, heavy traffic, and chemicals.
- Superior crack resistance: The polymers reinforce the surface, preventing early aging.
- Long-lasting color: Stays rich and dark for years.
- Improved flexibility: Resists shrinking and splitting as the seasons change.
Cons
- Price tag: Often more expensive than standard sealers.
- Requires professional application: The science behind these blends means a steady, skilled hand for best results.
- Not always necessary for residential jobs: Overkill for light-use areas.
Best For
- High-traffic commercial parking lots, airports, city streets
- Properties where performance and lifespan trump upfront cost
7. Chip Seal
What Is Chip Sealcoating?
Chip seal is a two-step process: a layer of hot liquid asphalt is sprayed onto the pavement, then covered with a layer of crushed stone (“chips”). Rollers press the chips into the asphalt, creating a textured, non-slip finish.
Pros
- Extends pavement life: Creates a tough, weather-resistant surface.
- Improved traction: The rough texture grips tires, reducing skids.
- Cost-effective for large areas: Ideal for roads and wide lots.
- Quick application: Can cover large surfaces in short order.
Cons
- Rough finish: Not as smooth or visually refined as other sealcoats.
- Loose stones: Some chips may loosen over time, leading to minor maintenance.
- Not suitable for all surfaces: Works best on roads, not decorative or small-scale pavements.
Best For
- Rural roads, long driveways, large parking lots
- Municipalities needing efficient maintenance on a budget
8. Slurry Seal
What Is Slurry Seal?
Slurry seal is a thick blend of asphalt emulsion, fine aggregates, mineral fillers, and water. Applied with a specialized spreader, it creates a dense, textured layer that covers small cracks and restores the surface.
Pros
- Seals and fills small cracks: Prevents water infiltration and slows deterioration.
- Adds friction: The gritty finish makes for safer driving and walking.
- Fresh appearance: Covers faded, weathered asphalt with a clean slate.
- Moderate cost: More affordable than a full resurfacing.
Cons
- Longer cure time: Needs dry, warm weather for best results.
- Can’t fix major structural problems: Designed for surface rehab, not deep repairs.
- Rougher than traditional sealcoat: Texture may not suit all locations.
Best For
- Aging parking lots, low-to-moderate traffic streets, neighborhood roads
- Projects where surface restoration and safety are priorities
9. Coal Tar Sealers
What Is Coal Tar Sealcoat?
Coal tar sealers are made from refined coal tar, a byproduct of the steel industry. Known for their near-legendary resistance to oil, fuel, and chemicals, they’ve been a go-to in North America for decades.
Pros
- Unmatched chemical resistance: Stands up to oil spills, gas, and other common hazards.
- Long lifespan: Lasts longer than most other sealers, especially in tough environments.
- Deep black finish: Restores that just-paved look.
- Cost-effective: Generally less expensive than premium synthetic or acrylic options.
Cons
- Strong odor and VOCs: Intense smell and fumes during application.
- Environmental concerns: Coal tar contains PAHs (polycyclic aromatic hydrocarbons), which are restricted or banned in some regions due to runoff risks.
- Messy application: Can be sticky and difficult to clean up.
- May not be available everywhere: Regulations are tightening.
Best For
- Commercial lots, service stations, and places exposed to frequent oil or chemical spills (where legal)
- Projects where chemical resistance and longevity are essential
Summary: The Top 5 Sealcoating Materials & Their Best Uses
Sorting through all the options? Here’s the short version:
- Asphalt Emulsion: Good for residential driveways and lots, especially where odor or environmental safety matters.
- Oil-Based: Ideal for older, dry, or weather-beaten asphalt. Just check your local rules on VOCs.
- Acrylic-Based: The “gold standard” for color, toughness, and heavy use; great for commercial or decorative pavements.
- Polymer Modified: Best for high-traffic areas needing max durability and longevity.
- Coal Tar: Top choice for chemical resistance if your area allows it.
Each material brings something unique to the table. The right pick depends on your climate, traffic, budget, and values.
Why Morgan Pavement for Asphalt Sealcoating?
At Morgan Pavement, we don’t believe in a one-size-fits-all approach. With over three decades of experience and the largest self-performing team in the Western United States, we’ve seen what works and what doesn’t in every climate and on every kind of surface. Our crews use only premium sealcoating materials, and we match each project with the right formula for your needs, your budget, and your goals.
From residential driveways to sprawling municipal lots, we handle every job with care, skill, and an eye for the details. You get clear communication, honest recommendations, and a result that stands the test of time.
Thinking about a sealcoat, but not sure where to start? Let’s chat. We’re happy to walk you through your options and the best solutions for your pavement maintenance.
Learn more on our asphalt sealcoating page or contact us.
